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Description of a new species of <I>Liparis</I> (<I>L. ranula</I>) obtained by the United States Fish Commission off Halifax, Nova Scotia

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46 PROCEEDINGS OF UNITED

STATES

NATIONAL MUSEUM.

Table of Measurements.

(2)

PROCEEDINGS OP UNITED

STATES

NATIONAL MUSEUM. 47

itwascolorless,almosttranslucent,andwascoveredwitliathicktough integument. The following description is less complete than would seemdesirable,owingtothefact thatthe unique specimen(No. 22,310, U.S.]S"at.Mus.Cat.)wastoosoft and tendertoadmitoftherequisite manipulation.

The

specimen,which is 50 millimetres in total length (caudal included),is a maturefemale,having in the abdominalcavity msiTijlarge eggs.

Description.

—

The bodyis thick, subcylindrical anteriorly, rapidly tapering to thetail,covered with athick lax integument; itsgreatest height(.25)equals the lengthOx"thehead andisone-fourth ofthetotal lengthofthebodywithoutcaudal.

The

head is somewhat tumescent at the nape; itsheight(overthe ventral discandeyes)contained something oversixtimesinthe length ofthebody; itsgreatestwidth(.18)veryslightly greaterandequaling twice the widthofthe ventral disc. The snoutisbroad, with promi- nentverticalprofile; itslength aboutone-fourth that ofthe head. The

cleftofthemouthishorizontal,anddoes not extendtothe perpendicu- larfrom the anterior margin ofthe orbit. The lips are covered with thick lax skin,the upperjawextendingbeyondthe lower.

Thelength oftheupperjawisabout one-third ofthe length ofthe head; that of themandibleslightly greaterthanthelengthoftheven- tral disc. Each jaw armedwith abandof villiformteeth. Thetongue

isthick, obtuse. Theeyeislateral,not interferingwith theui)per pro- fileofthe head; itsdiameter(.07)morethanone-fourth ofthe lengthof the head,andcoutained about fourteen timesinthelengthofthel)ody.

The

widthofthe interorbital areaiscontainedtwo andone-halftimes inthe lengthofthehead. Thenostril is close to the eye.

The

gill- openingisavertical slit,extendingupontheupper partoftheroot of thepectoral.

The dorsalfinisinserted atadistance from the snout equaltoone- thiixl ofthe length ofthe body. Itcontainsabout 48rays,thoughto countthemisalmostimpossible. Theanalfin originates at a distance from the snout equalto two-fifths of thelengthofthe body,andinthe perpendicular fromthe eighthdorsal ray. Itcontains at least48rays.

The pectoral fin is moderately broad, with 15 long rays and12 or 13 shorter ones.

The

long rays aretwice as longastheventral discand extend nearlyor quite to theperpendicular from thevent.

Theventral disc is slightlylonger (.10) than its distance from the snout(.00),whichprecisely equalsitswidth. Ithasfourteen papilkT.

Thecolorisuniformwhitish,almostcolorless,andtranslucent inlife.

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48 PROCEEDINGS OF UNITED

STATES

NATIONAL MUSEUM.

Table of Measurements.

Referensi

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