ir. 7 



stand at' næsten en halv Eovedlængde fra Aims, dog for- 

 holdsvis langt fortil, idet dens Aistand fra Snudespidsen 

 blot udgjør en Trediedel ai Totallængden, saaledes at det 

 egentlige Ealeparti kommer til at udgjøre 2 Tredjedele af 

 denne. 



Caudalen er særdeles smal og Langstrakt, smut ubety- 

 deligt tilspidset. Den bestaar af 1" særdeles fine og tæt- 

 stillede Straaler, hvoraf det yderste Par ere kortere, end 

 de øvrige, der samtlige omtrent have samme Længde; de 

 ere udelte, men fint articulerede. Caudalen, der, som oven- 

 for nævnt, ved Roden er bed.-ekket a f den sidste Dorsal- 

 og Analstraale, bar en Længde af omtr, ' ,,, af Totall. 



Pectoralerne udspringe uoget bagenfor Anus, lige 

 bag Gjællespalten, saaledes, at deres Rod berøres af Gjælle- 

 hinden. De tælle 11. paa den andenSide 12 Straaler, der 

 ere delte omtrent fra Midten af. Pectoralens Grundlinie 

 udgjør lidt over Halvdelen af [nterorbitalrummets Bredde. 

 De øverste Straaler ere de længste, de følgende eiterhaan- 

 den kortere; deres største Længde indeholdes i Totallængden 

 næsten 7 Gange. Hele Finnen er yderst blød og bøjelig, samt 

 halvt gjennemsigtig, og indhyllet i den samme lose Hud. 

 som den øvrige Del af Legemet: 



Ventralerne ere tilstede som 2 lange Filamenter. hver 

 indhyllet i en tyk Hud, og fæstede til Tungebenet, umid- 

 delbart ved Gjællespaltens nedre Ende. 1 sin første Halv- 

 del ere de udelte, men dele sig paa Midten i 2 Traade, 

 hvoraf den ene er hengere, end den anden. Ventralens 

 hele Længde udgjør hos det eneste undersøgte Individ om- 

 trent 1 / 3 af Legemets Længde, men varierer sandsynligvis 

 hos Individerne. 



Slimporer. Sidelinie eller Skjæl tindes ikke. Langs 

 Underkjæven strækker sin en Række af 4 store, aabne Po- 

 rer, hvoraf den første staar nærved Symphysen, den sidste 

 paa Kjævens bagre Hand. Paa hver Side at Overkjæven, 

 umiddelbart ved Randen, staa 3 lignende Porer, samt en 

 enkelt paa hver Side hen under Øjet. 



Farven var overalt mørkt kjødrød med enkelte lysere 

 Skygninger; den var yderst fint og jevnt fordelt, saaledes 

 at tydelige Pigmentpunkter vare ikke synlige. Gjællehinden 

 var intens carmosinrød; iris var ikke metalliskfarvet. men 

 dybt blaasort. Denne smukke rode Farve er efterhaanden 

 hos det paa Spiritus opbevarede Exemplar saagodtsom 

 ganske forsvundet, saaledes at dette nu er bleven jevnt 

 hvidagtigt overalt. 



Appendices pyloricae, hvis Antal var 10, vare tykke Og 

 cylindriske; deres Længde varierede mellem 15""" og 18» ,m . 

 Bughinden var sort. 



Individet var en Han: Testes, der dog neppe for 



Tiden vare i sin fulde Udvikling, havde en Længde af 4." 



(den venstre), og 55""" (den højre). 



Føde. Ventrikeleii. der var særdeles musculøs, inde- 

 holdt endnu gjenkj endelige Levninger af Crustaceer, skjønt 

 Individet var opbentet fra den enorme I tvinle af næsten 

 1300 Favne, hvortil var medgaaet tiere Timer, og derpaa 

 i en Tid holdt levende ombord. Disse vare 2 Individer 



commences nearly half the length of the head posterior to 

 fche vent, bul comparative!) far in front, being distant not 

 more than one-third of the total length from the tip of 



the snout; and henee the caudal portion of the body equals 

 two-thirds of that length. 



The caudal is narrow, elongated, and very slightly 

 pointed. It consists of lo exceedingly close and slender 

 rays; the outermost pair shorter than the rest, which are 

 nearly uniform in length; they are simple, but minutely 



articulated. The caudal, covered at the base las stated 

 above) by the terminal ray in the dorsal and anal, is equal 

 in length to about one-tentb of the total Length. 



The pectorals commence a short distance posterior 

 to the vent, immediately behind the branchial opening, their 

 hase in contact with the branchial membrane. They are 

 furnished on one side with" 11. on the other with 12 rays, 

 divided from about trie middle. The base of the pectorals 

 measures rather more than half the width of the interorbital 

 space. The uppermost rays are the longest, the rest be- 

 coming gradually shorter: their length is to total length 

 nearly as 1 to 7. The whole tin exceedingly soft and flexible, 

 also semi-transparent, and. like the rest of the body, envel- 

 oped in a lax integument. 



The ventrals occur as two long filaments, each invested 

 with a thick membrane, and attached to the hyoid bone, 

 close to the lower extremity of the ii ill-openings. In their 

 first half simple, but divided about the middle of the tin 

 into two cirri, one longer than the other. The length of 

 the ventrals in this unicum equals about one-third of the 

 length of the body, hut will probably he found to vary in 

 different examples. 



Mucous Pores. — No scales or lateral line. Along 

 the under surface, however, extends a row of 4 large, open 

 pores, the first in close proximity to the symphysis, the last- 

 on the posterior margin of the jaw. Oh either side of the 

 upper jaw, contiguous with the margin, are three similar 

 pores, and a solitary pore occurs under each eye. 



Colour. — The whole body of a bright red colour, 

 here and there with lighter-tinted cloudings; and this 

 ground-colour being remarkably uniform, no distinct pig- 

 mentary specMets were observable. Branchial membrane the 

 brightest of crimsons: irides a deep bluish-black, without 

 metallic lustre. The beautiful red colour ha.s gradually 

 faded, from the action of alcohol (the specimen is preserved 

 in spirits), the fish being now uniformly whitish. 



Pyloric appendages 10, thick and cylindric, varying 

 in length from 15""" to 18"""; ventral membrane black. 



This individual was a male: length of testes, which, 

 .however, had hardly then attained their full development, 

 l.V-"" (the left) and 55""" (the right). 



Food. — The ventricle - - exceedingly muscular 

 contained still determinable fragments of crustaceans (and yet 

 the specimen was brought up from the great deptli of 1300 

 fathoms, which took several hours: and it was kept. too. 

 some time alive), viz. 2 examples of Bythocaris leucopis, 



