Beaufortia - Naturalis repository

7 downloads 0 Views 2MB Size Report
Dec 31, 1982 - River in. Venezuela. Morphometric and meristic data of several ...... Cojedes,. Rio. Salinas, a tributary of Rio. Pao Viejo,. N.E. of. El. Baul.
Beaufortia INSTITUTE

OF TAXONOMIC ZOOLOGY

UNIVERSITY

Vol. 32

(ZOOLOGICAL MUSEUM)

OF AMSTERDAM

8

no.

Dentectus mailed

a

barbarmatus,

catfish

from

the

new

Siluriformes,

(Pisces,

genus

Orinoco

December

31,

species

of

and of

Basin

1982

Venezuela

Loricariidae)

F.J. Martin Salazar de Estudios

Departamento

and

Venezuela,

Universidad Simon Bolivar,

Ambientales,

Laboratorio

de

de

Instituto

Ictiologia,

I.J.H. Isbrücker Taxonomische

voor

P.O. Box

& H.

Tropical,

de

Nijssen

Universiteit

Zodlogie,

van

Amsterdam,

The Netherlands

Amsterdam,

HC

1000

20125,

1081,

Universidad Central

Caracas

Venezuela,

Instituut

Zoologia

Caracas

Apartado 80659,

Abstract

Dentectus is

barbarmatus,

described

meristic with

from

a

data of several

Bleeker,

Planiloricaria

of

the

are

species

northern

are

of mailed catfish

discussed.

of

margin

presented It is

Rhadinoloricaria

1862,

Isbrücker,

and

genus

specimens

of the tribe

other genera

hemiodon

new

tributaries

and

the

of the

illustrations

assigned

Isbrücker

&

subfamily Loricariinae,

Orinoco are

River

given.

to the subtribe

Nijssen,

in

Venezuela.

The

tribe

of the

relationships

Planiloricariina, together Crossoloricaria

1974,

Loricariini, and

Morphometric new

genus

with Pseudo-

Isbrücker,

and

1979,

1971.

Resumen

Se

describe

Dentectus

Loricariini,

morfométricos discuten

las

hemiodon loricaria

barbarmatus

proveniente

de

merísticos

y

relaciones

Bleeker,

de

1862,

Isbrücker,

de

este

varios

de

en

la

género

la subtribu

y

especie norte

márgen

specímenes

nuevo

Rhadinoloricaria

1971,

género

un nuevo

tributarios

con

así

Isbrücker

&

late

Agustin

early

as

represented Ydpez. this Ten to

1968

in

a

the

was

years

on

of

collection for

the work,

when

initiated

Fernandez

different

they

Fernandez

the

the Loricariinae

interrupted during

later,

and

Yepez

publication

study

Unfortunately,

study

finish

in

misma

Nijssen,

a

de la

Orinoco,

ilustraciones

la

en

del

tribu;

subfamilia Venezuela.

holotipo

y

se

lo

y

tribu

Loricariinae, Se

incluyen

datos

algunos paratipos. junto

agrupa,

Crossoloricaria

1974,

Last Fernandez

senior author of the present as

Río

Isbrücker,

1979,

Se

Pseudo-

con

y

Plani-

Planiloricariina.

INTRODUCTION The

como

otros de

de Loricárido

del

reasons

long period.

were

Y£pez

preparing died.

study

year in

the

senior

collaboration

author with

restarted

Isbriicker

the

and

Nijssen. This is

mainly

the

with

Fernandez

general

of

a

species

very his

benefit

of

series of

He

accurate

specimens. gained

papers

dealing

Loricariinae in the

Yepez collection.

unpublished sketches

first of the

In

by

left

numerous

and

drawings addition

publishing

to

the

these

125

the

senior

author

with

gether

the

specimens,

his dez

Yepez

the

to-

necessary)

identification

of

to honour FernanSouth American

outstanding

and

Ichthyologist

still

and

also want

we

an

as

where data

of

pioneer

Ichthyological

Studies in Venezuela.

sorted out from

nating the

the

Both

Orinoco). one

another in

shape of

maxillae

River,

which

groups

were

slender

They

two

group

assigned

1854),

“Loricaria”

Together

“Loricaria”

distinct from

were

a

forthcoming

second as

it

with

(1904:

274,

nominate

in

variegata,

mina,

“L.”

1904,

the

forms

two

represent

a

different

group, as

defined

recognized

was

the

as

Dentectus

of

specimens

group "aff.

cf.

Loricaria

represents will be

of

a

species

described in

“L.”

laticeps,

Pseudohemiodon

included

IV,

Loricaria

pointed was

appeared, by

“L.” out

distinct

Regan in

B)

the

“Lori-

(viz.:

macromystax,

and

“L.”

la-

platycephala). especially

that

generic

level

at

Isbriicker,

and

and

In this

to

the

the

tion of Fernandez at

first

sight

specimens

after

this

These

structure of the of

the

lip,

the

the

ever,

new

with both

the

and

to have

few

to be

seems

upper

or

in

any

How-

related

closely

Pseudohemiodonand group

the

of

the Pseudo-

Loricariidae.

family

genus

base

the

of

the

as

armature

the

at

Planiloricaria,

the

very small

well

as

peculiar

and

all.

stained

genus of

any

is

collec-

teeth at

jaws and

barbels

in

of

genus

in the

no

filamentous barbels

hemiodon-group, other

had

both

pre-

considered which

are

characters

unknown in

are

the

Planiloricariina.

they proved

lips, and

maxillary

of

some

of

Loricariina,

cleared and

were

treatment

premaxillae.

new

1979, 1974a,

result

specimens

Yepez

minute teeth in

very

1975,

Nijssen, a

subtribe

apparently

Two

&

As

subtribe

those

paper,

some

1973,

Pseudohemiodon-group,

in

placed

assigned

now

1978).

the

present study,

1971,

Isbriicker

1981;

1976,

of

description

the

Planiloricaria.

genus

“Lori-

genus:

couplet

key,

was

1980, 1974b,

the

to

ACKNOWLEDGEMENTS

publications

species

the

(cf.

Thanks

to the kindness who

Leccia,

work

to

in

Zoologia de

his

laboratory of

Tropical

extensive

of

and

at

the

species

the

gave

under

his

been able to locate additional same

Francisco

Mago

Instituto

Universidad

who

collection

Dr

the senior author facilities

provided

Venezuela

Central to

access

care,

de

we

the

have

specimens of the

in the collection of Fernandez

as

Yepez. The senior author likes to thank the Decanato de

of

Investigaciones

Bolivar

several

subgenus

it

defined

paper.

caria”

Initially,

a

1758,

and

described

new

a

with

platycephala

to

group

herein

lamina”;

1968

Since

dealing

as

on

then

laticeps Regan,

seem

Pseudohemiodon which

of

pre-

species.

related

of Loricaria

labelled

L.

to

these

Linnaeus,

species,

The first

of

initially

the

barbels

two

1869.

Salinas

The

barbarmatus.

of

obvious

was

Gunther,

species,

representative

laticeps and

It

1868,

species

(1904).

new

of

general

neither the

on

easily identifiable

the other

a

One

Gunther,

these

Rio

and

by Regan as

with

in

into

in

as

viz.: “Loricaria”

caria” macromystax

collected

very

such

Loricaria

lamina

species

origi-

similar

subgenus Loricaria

the

by Regan (1904), (Kner,

flows

closely

were

of

species to

tributary

represented

groups

apparently of

(a

filamentous

lips.

both upper and lower that these

fishes

the dentaries and had remark-

on

and

ably long

senior

of

snout.

visible teeth

no

nor

River

head and

body,

had

groups

groups

appearance,

the

and

Yepez

two

Salinas

Portuguesa

and

viously

Fernandez

1968,

In

author

genera

spend

for

a

the

few

weeks

Taxonomische van

Universidad

in

Zoologie

support

the of

Simon

given

Instituut the

to

voor

Universiteit

Amsterdam.

The

drawings

sketched

by

completed were

the

financial

made

in

figs.

Agustin

by by

F. Mr

J. L.

I

and

Fernandez

Martin A.

van

2

were

Yepez

Salazar.

Figs.

der Laan

first and

3-4

(ZMA).

MATERIAL AND METHODS from

Loricaria

different

proposed,

126

taxonomic next

lato,

sensu

to

and

assignments

the

successively have

establishment

of

been new

Specimens Museo

de

are

deposited

Biologia,

in

collections

Universidad

of

Central

the de

Venezuela

Universiteit The

proposed

in

measurements

before

the

calculating

traction of

this

part

press)

elongation

which

is

it

various

enables

a

In

I

Diagnosis. cariinae,

included, Subfor

way

data

morphometric

some

those referred

above,

to



are

fol-

as

lows:

length/pelvic

I):

ratio of

in abdominal

in

fin

pelvic

spine,

40

in

expressed

length,—

abdominal scutelets

scutelets

spine (character

number of

(character 44):

posterior

anterior

+

transverse

series,—

of

SL,

snout

to

tip

of snout

ratios

pressed

least

pelvic

in

orbital

diameter

orbital width,

maxillary barbel, orbital

from

10): fin

pelvic

spine;

diam.

(character

orbital

diameter,

ex-

width,—

(character

ratio

37):

in

least

21):

(character

of

=

(character

ratios

width

body

25):

and

anterior

expressed at

width

in

anal at

orbital

dia-

posterior

HL,

(character

anal,

38):

expressed

in

of anal fin

7):

from

tip

the

from to

up

expanded

the

are

normally

the

lower

preserved

barbels

smooth.

are

maxillary.

up

are

present. from each

three teeth each,

to

the

in

ones

jaws

the

pre-

invisible

are

specimens:

specimens

In

small, elongate

widely separated

similar to

observed in

lip

enlarged

other

the

three

The teeth and

maxillary.

dermal

branchiostegal

crowns

distally incasing

they

which

in be

can

are

cleared

and stained.

Additional characters with

comparison

of the

Fin-ray

last

one

rays;

10, I

anal last

one

meaning

in

meaning

as

to its

fin

rays;

fin

only

dorsal

split

in

split

in

with

I, 5

nine

genera

1,6,

in

a

in

the

i

of

the

rays,

the

pectoral fin with I, 6 rays;

caudal fin with

specimens,

four

and

species.

other

base;

below

given

genera

known

fin

with

and

rays

are

related

counts

pelvic

of snout

spine; ratios expressed

and

other

with

Etymology.

preanal length (character

SL,—

each

of

small, widely separated

very

premaxillary

other,

I,



of

maxillary barbel)

Dentaries likewise

rictal

postanal length,—

to base

from

Loricariini:

excluding

postanal/body

for the

description



barbel

diameter

notches;

laterally,

Premaxillaries

each

and

inter-

of

margin

height

whereas

easily

anterior

excluding

expressed

36):

provided

the

margin

with

papillae

which teeth

—•



meter

ratio

SL,

diam.

notches,

posterior

(character

interorbital

interorbital/orbital of

tip

ratios

filaments of

entire

odontodes.

the

along

the

of

the

irregular

these barbels have

(except

&

dis-

long,

numerous

rather

membrane; usually

teeth

maximum in

from

9):

papilla;

anal



orb.

interorbital/max. of

of

to outer base of

expressed

ratio

(character

anus

center

in

expressed distance

to

to

snout

barbel

bearing

Barbels to

Isbriicker

following

lip with

almost

maxillary

reach

(3)

distance snout

the

barbels in several

and

lip

upper

Lori-

subfamily

(sensu

Externo-lateral base

rows.

(2)

179),

species

new

characters:

ossifications

table

genus

the

with

and lower

Upper

of

genus

Loricariini

1978:

tinguishing (i)

A

tribe

Nijssen,

the

abdominal

new

Dentectus barbarmatus

Type-species:

filamentous

table

39):

length.

Dentectus

from

comparison.

additional to

(character

length, expressed

SYSTEMATIC DESCRIPTIONS

have

ratios.

better

thoracic

spine

spine

ante-

ventrorostral

(in

this

fin

pectoral

180-

(1978:

(or

length/pectoral

of

and

those

as

produced,

a

al.

et

subtract

to

ratio in

same

Nijssen

snout

Isbriicker

extension)

&

thoracic

(ZMA).

the

with

ossified

voor

Museum,

morphometric

largely

are

specimens

rioventrally

all

taking

Isbriicker

by

for

of

Instituut

Zoologisch

Amsterdam

van

data

proposed 182);

Zoologie,

methods

meristic

the

(MBUCV) and of

Taxonomische

have

I,

five 4, i

have

rays,

I, 5 the

to its base.



Dentectus is from the Latin dens

tooth,

and

covered,

allusion to the

from

the

concealed,

Latin

tectus

disguised,

an

unique dentition.

127

Comparison Dentectus

related

the

on

with

hand

one

seems

Pseudohemiodon &

Rhadinoloricaria Isbriicker Crossoloricaria

Isbriicker,

to

be

closely

Bleeker,

Nijssen,

various

morphometric

In

the

of

measured

1862,

latter

62.5

show

and

Dentectus

and

141.6

the

in

characters.

standard

specimens

of

mm,

differences

meristic

following comparison,

1974, and

(these

1979

Planiloricaria

and

ra,

are

various

lengths

between of

species

~

the three

within

genera

defined

Pseudohemiodonof group

the

constitute

Pseudohemiodongroup genera

the

subtribe

by Isbriicker,

Loricariina,

On the other

1981).

as

hand,

lengths

are

known

between

specimen

Dentectus

it

also

possesses

below) pointing caria of

to

Isbriicker,

the

subtribe

characters

some

a

(indicated

relationship with Planilori-

1971,

hitherto the

only

3.1-4.0 times in and

6.6,

SL,

1979)shares

genera: head

Pseudohemiodon-group depressed, more or

caria

broad

the snout

teeth

acute),

in

dorsal

less disc-like to

has

presence

of

notch),

dorsally large

rays

and often with

Dentectus,

128

1.

size

of or

head

and

in

(some

small

a

the

profile

of

number,

species a

of

pupil,

snout,

a

rather

ridges outer

caudal fin

in

on

extremely long filament.

barbarmatus

n.

gen.

et

n.

sp.,

ray in

al.,

0.4-6.9

genera, and caudal

Dentectus

the

contained

4.2-5.1

in

al.,

Pseudohemiodon et

and

fin

against

5.5

Dentectus

in SL

'spine' is 0.3-0.5

in

0.6

Pseudohemiodon in

6.1-9.9

and

Planiloricaria. The

is

'spine'

1.6-4.7

in

'n

SL

in

Pseudohemiodon et

in Planiloricaria.

has the maximum orbital diameter

contained 5.6-6.4 times

Pseudohemiodon-group

in head

it is

length,

4.3-7-2,

in

the

in Planilori-

caria 13.1. The interorbital width of Dentectus is

(un-

produced

5.1-7.3

Dentectus,

lower

in

head

al.,

the Pseudohemiodonof genegroup

Dentectus

4.5first

has

in Planiloricaria.

5.5

related

posterior

flap extending

prominent

and

'spines'

an

snout

contained

It

2.4.

The upper caudal fin

very much

anterior and

rather

fold,

dorsal surface

Fig.

usually

the

tapering, relatively

notch

downward from

labial

branched)

an

with

triangular (Rhadinolori-

in

orbital

Pseudohemiodon have orbital

view,

profile

reduced

an

characters

most

214

spine

Pseudohemiodon et al.

fin

dorsal

against

and Dentectus

SL,

fin

only

mm.

genus

Isbriicker,

(cf.

the dorsal

standard

mm; the

of Planiloricaria is

Planiloricaria

branched

Planiloricariina

has

63 and 246.5

the

holotype in

and

length, 5.2

in

4.2-4.6

Pseudohemiodon et

in Planiloricaria.

Dentectus

lateral

4.3-6.1

view.

has

16-18

coalescing

lateral

body

Fig.

2.

dorsal

Dentectus

barbarmatus

n.

gen.

et

n.

sp.,

details

of anterior

part

of

holotype

in

ventral

(left half)

and

in

(right half) view, respectively.

129

Pseudohemiodon

scutes,

Planiloricaria

There

19-20.

scutes

body

in

al.

et

are

Dentectus,

hemiodon-group

13-21,

lateral

31-33 in

31-34

and

genera,

have

in

40

Pseudo-

Isbrlicker,

pointed

specimens

teeth.

visible

teeth

in

dentaries

simply

the to

proved

be

in-

have

staining,

and

the

in

Neither

present.

speci-

Pseudohemiodongroup genera,

of Planiloricaria have been cleared and

the

the

and

the former

counted in the premaxilla, The

dentary.

to

genus-group, up

lack

of

a

numerous

only

and up

to

visible

P.

like

dentary,

The

in

11

(figs.

the

hand

at

has

Dentectus.

Holotype,

presence

scutelets) lips,

and

jaws

absent

characters,

there

However, various

teeth

Dentectus

all

in

are

the

to

three

As

appropriate

subtribe

to be the best

of

and

in

and

by

along the

all

the

and

buccal

previously),

barbels

Linnaeus,

130

by

now

the

seems

Pseudo-

Planiloricaria For

the

expanded

this

of Rio

the

of

(small

of

and

cavity.

and

of

(two

long

lower

(in

also

a

more

relatively

a

few

the

from the

large

teeth;

genera

Brochiloricaria

L.

ZMA

116.648,

Estado Sum

J.

(o8°4i' N,

N.

W), 0.

Baskin,

paratype,

Silva

Puente Proven-

31-VII-1981; SL

mm,

coll.

& L.

Estado

from

upriver coll.

F.

89.1

mm,

Venezuela,

F.

Mago Leccia,

F.

2-VIII-

Aguana,

MBUCV-v-12940,

Venezuela,

mm,

mm,

Venezuela, the

coll.

one,

88.9

99

MBUCV-

Rio Bocono at Puerto Sum

Portuguesa,

69°i2' W), L.

SL

one,

at

Aguana,

paratypes, MBUCV-v-13173,

SL

one,

Portuguesa,

Guanarito

Rio

(o8°42' N,

0. Castillo

Provenzano,

&

Aguana, 28-VII-1981.

Description.— Morphometric

possessing

&

and

mm,

Masparro

116.638,

holotype

as

paratypes,

N, 69°38' W),

(o8°2i'

Fernandez MBUCV-v-

ZMA

59.5

a

Baul

lips

sexual

restricted

SL

El

of

data

140.8-141.6 Rio

0. Castillo

zano,

N.E.

mm,

mm,

Salinas,

Agustin

same

paratypes,

SL

136.5

Rio

paratypes,

mm,

Barinas,

Libertad

coll.



stained);—

two,

v-12920, Estado

SL

Viejo,

59.5-120.5

136.8

and

Guanare,

few

SL

these

cleared

67.3

and

Secondary

easily distinguished

(comprising 1758,

SL

one,

Pao

25-II-1950;

small

numerous

upper



Cojedes,

68°oy' W),

12985, six,

char-

are

possession

presence

on

subtribe Loricariina

Loricariina

mutual

is unknown.

The subtribe is

of

These

Yepez,

1974;

reduced dentition

a

dimorphism

than

and

as

Pseudo-

place.

acterized above

teeth),

it

Loricariini.

The Planiloricariina thus

barbels

genus

the

close

Dentectus,

genera,

and

the subtribe Planiloricariina appears

assignment

with

in this

consequence,

of

hemiodon-group

Loricariidae.

similarities

rather

the

unique

Planiloricaria.

a

assign

to

single

a

(small

are

genera of

to

indicate

relationship.

jaws

other

many

and

hemiodon-group similarities

a

ossifications

overlapping characters

compared

to

of

table 1)

(fig. 6).

Estado

Venezuela,

and the structure of

barbels,

on

1-5;

MBUCV-v-12780,

(09°i3' N,

dermal

species

new

no

position of

has

1979

1981).

tributary Systematic

Isbriicker,

(cf.

were

whereas it has 3 teeth

premaxillary teeth,

in each

by

subtribe

of Planiloricaria

specimen

cryptodon)

The

nor

Material examined

of

(holotype

differ

others

branched barbels,

dentition

well-developed

and

Two

premaxillae

among

barbels.

conspicuous

Ricolina with

usually

jaws.

stained.

teeth

9

the

Hemiodontichthyina)

Planiloricariina

Dentectus barbarmatus In

of

preserved

and

premaxillae

firm and

are

one

from

barbarmatus

Only after clearing

both

of the

mens

above,

out

Dentectus

of

in

or

subtribes with invisible teeth in the

(Reganellina

As

and Paraloricaria

1979,

the teeth

1979)

in both

long

very

Isbriicker,

Planilori-

caria.

3

in

Nijssen,

sense

in

some

number in

the

Loricaria

Isbriicker

&

table I. of

the

Dermal moderate on

the

scutes.

and meristic

Illustrations of

paratypes

ossifications, odontodes,

coalescing Two

are

on

given

in

and

are more

the parallel the

presented

are

holotype

fin-spines

which

and

ridges

data the

and

figs. rays

of

1-5. with

prominent

lateral

supraoccipital

body and

Fig.

on

Dentectus

3.

the

ridge

two

on

nuchal

adjacent

the

plate

larger

by

third

with

supraoccipital. a

barbarmatus

a

a

gen.

predorsal predorsal ridge

Adjacent

scute with

n.

at

to

a

n.

sp.,

scutes,

a

A

scute.

either side

the nuchal

ridge, posteriorly

6 anterio-dorsolateral scutes,

with

et

paratype

single small of the

plate

is

continued

each of

which

ridge.

Orbital

rim

in

ZMA

small and more

oval,

a

conspicuous

though

in

dorsal,

shallow

prominent

Dorsal

surface

lateral

posterior

diverges

of

in front of

parallel ridges

the

At

and

notch

ventral

and

head

with

a

a

to

near

is

another

the

ridge,

along

This

the nostrils into two

extending

rim

with

ridge

areas.

either side between these

orbital

view.

anterior notch.

the interorbital and internasal

snout.

with

116.638

tip

ridge

closely of the

ridges being

and an

131

ventral in

1 6. 38 ZMA in

par type of

part

anterior of

details sp.,

etn. gen. n.

view.

bar matus (right) Dent cus

dorsal in

and 4.

Fig. (left)

132

Fig.

Dentectus

5.

details

of

position

of

the

ridges;

anterior one

one

it

anteriorly

margin

of the

diverges stretching

anterior border of converge and

Ventral surface

marginal series lets.



(d)

distal

part

supraoccipital

orbital

into

posterior

rim.

two

beyond

the other

At

the

branches, the

outer

embracing

the

continuing

to

with the first branch.

of head

naked,

of somewhat

half

— (a) right

MBUCV-v-12985,

of the

the orbit and

merge

in

embracing the nostril,

the

nostrils,

the

sp.;

et n.

gen.

paratype

height

branch

bordering

edge

of

at the

diverges

other

n.

stained

jaws; — (c) premaxilla;

orbital notch, the

and

continuation

anterior it

barbarmatus

cleared

a

except

rectangular

of

SL

for

a

head

99

mm;

of



in

holotype (b)

central

ventral area

of

view; — (b-d)

mouth, showing

dentary.

Preanal

the

series,

scutelets. from

the

merges

ing

the

covered

area

scutelets,

shaped

This

a

by

height

a

small

into

irregularly

of

consisting

of scutelets is naked

narrow

much wider naked

irregular

7

smaller

separated

strip,

area

which

surround-

pelvic fins.

irregular

decrease

riorly

series

complex

anus

into

with

arranged

outer

Abdominal and rather

scute-

of

in

size

of the there

thoracic

pattern

areas

of

anteriorly,

branchiostegal

are

5

covered

scutelets,

reaching

by

a

which to

the

membrane. Poste-

to 9 scutelets in

a

transverse

133

Table of

1. — Morphometric

mm;

holotype in

in



MBUCV-v-12985; data of

H,

characters indicate

4-17

are

scattered

widely



paratype

identical

A,

in

and

F,

ratios

of

as

a

SL,

in

the

standard

axial length

Dentectus data of

B,

barbarmatus

paratype

paratype in MBUCV-v-12920;

characters

data of

18-35

paratype ratios

are

adjacent column;

in

of

asterisk in

n.

gen.

in ZMA



G,

et

n.

116.638;

data of

sp.;



paratype

HL,

and

in

(A),

characters

H indicates

of

3

paratypes

MBUCV-v-13173;

41-44 the

measurements

data

Characters

MBUCV-v-12940.

column



C-E,

are

high

1-3

are

counts.

number

in



mm,

Arrows

of

small,

scutelets.

(A)

2

of



116.648; — J,

specimen

I

data

holotype;

data of

ZMA

figures

meristic

data of

length

136.5 —

A

136.5

B

C

136.8

120.5

150.6





D

E

F

92-3

62.5

141.6







G

89.1 —

II

88.9 99-9

.1

67-3 —

total

length

493-5

493-5

200.5

362.3

4

head

length

29.3

4-7

4.8

4-8

4-4

4-2

4.6

4-3

4-i

4.2

5

predorsal length

43-5

3-1

3-2

3-2

3.0

2.9

3-i

2.9

-■')

30

6

postdorsal length

78.1

i-7

i-7

1-7

i-7

1.8

1.7

1.8

1.8

1.8

7

preanal

65.0

2.1

2.2

2.2

2.1

2.1

2.1

2.0

2.0

2.1

2.0

3

length

8

postanal

9

distance snout to

length

io

distance snout to

11

dorsal

12

first

dorsal

anal

spine length

13

anus

pelvic

spine length length

ray

14

pectoral spine length

15

pelvic spine length

16

upper

caudal

17

lower

caudal

18

snout

length

lower

lip

19 20

21

22

23

24

lower

lip

maxillary thoracic

spine length spine length

66.5

2.1

50.4

2-7

42.6

abdominal maximum

178.5

507-1

2.1

2.1

2.1

2.8

2.7

2.6

2.6

2-7



267.3

2.2

2.2

2.5

24 2.8

3-i

3-0

3-1

3-1