95 



Hos disse ere de verticale bvidgule Tverbaand i sin Midte 

 opfyldte af den sorte Buudfarve, eller tildels opløstV til 

 hvidagtige, aflange Ringe ; Baandenes Antal og Beliggenhed 

 er den samme, som hos Expeditionens Exemplarer, men 

 undertiden kunne de være indbyrdes forenede nedtil. og 

 danne ber sammenhængende. guirlandeformige Tegninger. 

 Deres Begrændsning er mindre skarp, end hos de yngre 

 Individer. Hos et a f Individerne ere de paa det egentlige 

 Legeme ganske utydelige, men endnu paa Dorsalerne skarpt 

 begrændsede ; hos dette er saaledes Legemet næsten ens- 

 farvet morkt bruusort. Nakkepletterne kunne være sammen- 

 hængende, og danne et tvei-sover Nakken løbende distinct 

 Baand. 



Føde. • I Vtentrikelen af det største ' af Exjieditionens 

 Individer, en Hun (fra 459 Favnes Dyb), fandt jeg Røret 

 af en Annelide, maaske af eu TereheUa, fremdeles adskillige 

 Individer af Themisto libellula, Mandt. samt endelig en Del 

 Grus fra Bunden. bvoril)landt saaes mange smukke Fora- . 

 miniferer, især af en af de A^a;rf//?(^'- lignende SL-egter (Bo- 

 talina?). Hos det noget mindre Han-Individ fra samme 

 Localitet og Dybde fandtes blot Levninger af Themisto 

 liheUuIa. 



Hos 2 gamle Hanner fra Finmarken, optagne paa et 

 Par hundrede Favnes Dyb i Varangerfj orden, har jeg fun- 

 det alene knuste- Echinodermer. bvoriblandt kunde kjendes 

 Qenodisais crisj)afus, (Retz.), OpJiiacantJia sphudosa. Miill. 

 & Tr.. samt Antedon sarsii (Diib. & Kor.). Endskjønt 

 disse Individer saaledes vare henviste til denne kalkholdige 

 Føde, vare deres Tænder dog ikke synderlig slidte. 



Udbredelse. L. esmarldi foreligger allerede saavel 

 fra den europa'iske. som fra den americanske Side af At- 

 lanterhavet. Ai' Exjieditionens Individer erholdtes de 3 i 

 Trakterne af Spitsbergen i 1878. det ene i faa Miles Af- 

 stand fra denne Øgruppes Nordvestkant. Det 4de, en spæd 

 Unge, optoges fra Bankerne udenfor Helgeland i Norge i 

 1877. Endelig foreligge 5 fuldt udvoxede Individer ft-a 

 Fjordene i Finmarken, erholdte i Aarene 18(34 — 76; de 4 

 ere fangede paa Dybsagn (Line) i Varangerfjorden i Øst- 

 finmarken, hvor jeg ligeledes har erfaret, at andre (ikke 

 opbevarede) Lidivider i de sidste Aar have været erholdte ; 

 det sidste erholdtes i Øxtjord sondenfor Hammerfest (Vest- 

 Finmarken). 



Som tidligere bemærket, henhøre ligeledes de under 

 Navn af L. rahUi foreløbig opførte Individer fra Nord- 

 Americas Østkyst under forhaandenværende Art. Paa den 

 sidstnævnte Localitet erholdtes i Aarene 1878 — 79 4 fuld- 

 voxue Individer udenfor Rysterne af Nova Scotia, hvor dog 

 Havfaunaen endnu er ganske arctisk. Det ene af disse 

 opbevares paa Univ. Mus. i Christiania. 



viduals. In these specimens, the middle portion of the ver- 

 tical whitish-yellow transverse bands is tilled up with the 

 black ground-colour, or broken up into whitish elliptic 

 rings; the number of these bands and their position is the 

 same as in the specimens taken on the Expedition; some- 

 times, however, they are united together and form contin- 

 uous chaplet-shaped markings ; they are less sharply defined 

 than in the younger examjDles. In one of the individuals 

 they are quite indistinct on the body.' but continue to be 

 sharply defined on the dorsals: this specimen, therefore, has 

 the body of an almost uniform brownish-black. The nuchal 

 jiatches are sometimes continuous, forming a transverse 

 band across the nape. 



Food. — In the ventricle of the largest specimen 

 taken on the Ex)3edition, a female (brought up from a 

 dejjth of 459 fathoms), I found the house of an Annelid, 

 possibly a TereheUa, several examples of Themisto libelhda, 

 and a (Quantity of gravel from . the bottom, in which 

 were many tine Foraininiferæ, belonging chiefly to one of 

 the Nautilus-like genera (Rotalina?). The stomach of the 

 male, a somewhat smaller individual, from the" same locality, 

 contained only fragments of Themisto libellida. 



In the ventricles of two old males from Finmark, 

 taken at a depth of a couple of hundred fathoms, in the 

 Varanger Fjord, I found only crushed Echinodermcda, 

 amongst which could be determined Ctenodiscus crispatus, 

 (Retz.). Ophiacmdha spinulosa, Miill. & Tr., and Antedon 

 sarsii (Diib. & Kor.). Although the individuals in question 

 had subsisted on this calcareous food, their teeth were but 

 little worn. 



Distribution. — L. esmarkii has been met with both 

 in the European and the American tracts of the North 

 Atlantic. Three of the specimens of L. esmarkii collected 

 on the Expedition were taken in the tract adjacent to 

 Spitzbergen, in 1878, one of them but a few miles from 

 the north-western extremity of that group of islands ; the 

 fourth, a very young individual, was taken on the banks 

 off Helgeland, in Norway, in 1877. Finally, 5 full-grown 

 specunens were obtained from the fjords of Finmark, in 

 the period from 1864 to 1876, 4 of them from the Varan- 

 ger Fjord, in East Finmark, where, as I am given to under- 

 stand, other individuals, not preserved, have been taken of 

 late years, that last obtained having been captured in the 

 Øxfjord, south of Hammerfest (West Finmark). 



As already observed, the specimens from the eastern 

 coast of North America, provisionally referred to L. vahlii, 

 belong likewise to the present species. In that region were 

 obtained in the years 1878 and 1879 four full-grown ex- 

 amples off the coasts of Nova Scotia, where the marine 

 fauna has quite an Arctic character. One of the specimens 

 is preserved in the University Museum, Christiania. 



