CO 



i Oversikten over Selskabets Forhandlinger for 1835—36, 

 der danner [ndlédningen til det ovénnævnte Kind. b*ør dog 

 vistnok bans Navn vige for Fries's, da han ikke Ledsagede 

 sin Art med nogensomhelst Diagnose eller Beskrivelse. 

 Først i L838 meddelte han en saadan i sin Afhandling om 

 Grønlands Fauna i 7de Del af samme Tidsskrift. 



Arten har tidligere været afbildet i Gaimard's Planche- 

 vaerk til Corvetten ..La Recherche"'s Rejse (Voyage Scand. 



Lap. ete. 1838 — 39, PoiSS. pl. 14), men lidet tilfredsstil- 

 lende: desuden hos Wright og" EkstrSm, Skand. Fiskar, 5 

 Hefte. Pl. 1 (f838), men heller ikke den sidste Figur er 

 synderlig vellykket. 



did indeed name the species in tlie Summary of the Pro- 

 ceedings of the Society, which forms the introduction to the 

 aforesaid volume, bul without annexing any description or 

 diagnosis whatever; and hence Ids synonym must give way 

 to that ul Fries. The species was not described by Rein- 

 hardt till 1838, id Ids paper on the Fauna of Greenland. 

 L. maculatus has been previously figured in the plates 

 accompanying Gaimard's Narrative of the 1 Expedition with 

 the corvette -La Recherche" (Voyage Soand. Lap. &c, 

 is.",s ;i:i, l\iiss. pi. 14). hut the representation is far 

 from satisfactory, and likewise by Wright and Ekstrom, 

 ••Skand. biskar", Part 5, PL 1 (1838), whose drawing how- 

 ever, also leaves much to be desired in point of accuracy. 



Beskrivelse, Legemsbygning. Mellem Han og Hun 

 er der allerede i det ydre en tydelig Forskjel, idet Hannen 

 har stærkere Kjæver, der strække sig Lengere tilbage, end 

 Hunnernes, ligesom Tænderne ere stærkere. 



Anus' Beliggenhed er omtrent, som hos L. medius, 

 idet Legemets Længde foran Anus 'forholder sig til Partiet 

 hag Anus, som 1 : 1,3. Ligesom Kroyer har jeg bos Hun- 

 uerne fundet en yderst liden Analpapille bagenfor Anus. 

 hvilken mangler bos Hannente. 



Legemets Hojde over Nakken indeholdes 12,5 til 13 

 Gauge i TotaHængden. Bagenfor Nakken tiltager Legemet 

 noget i. Hojde: omtrent midt mellem Ventralernes Rod og 

 Anus, hvor Legemshøjden idethele er størst, indeholdes 

 denne 9,5 til 10 Gange i Totallængden. 



Hovedet indeholdes næsten nojagtigt 6 Gange (eller 

 ubetydeligt derunder) i Totallængden; hos yngre er det 

 forholdsvis større, og indeholdes hos et Individ med en Totall. 

 af 69 m ™ omtr. 5,3' Gange i denne. Overkjæven er tydeligt 

 længere, end Underkjæven, og Snudefi krumbojet; hos ud- 

 voxede Hanner, hvis Kjæveparti er langt stærkere udviklet, 

 end hos Hunnerne, naar Mundspalten tilbage til Øjets bagre 

 Rand. medens den hos Hunnerne og de yngre Individer 

 neppe naar over Øjets Midte. Øjnene ere store og tæt- 

 staaende, betydeligt hengere, end Smulens Længde. og in- 

 deholdes i Hovedlængden hos de yngre Individer 3, bos 

 ældre indtil 3 3 /i Gange. Næséborene ere 1 Par, der 

 bære en kort Tube; en større Slimpore (eller Næsebor) 

 aahner sig lige i Nærheden af hvert Næsebor. 



Gjællespaltén er vid, og naar paa Hovedets Underside 

 frem til under Øjets bagre Rand (eller undertiden ikke 

 fuldt saa langt). Gjællehinderne have 6 Straaler, og ere 

 nedtil sammenstødende, uden i Regelen at danne nogen fri 

 Fold paa Struben. (Hos et fuldt udvoxet Han-Individ er 

 dog en saadan ganske kort Fold tilstede, hvis Bredde imid- 

 lertid ikke synderligt overskrider 1"""-). 



Tænderne ere tilstede saa vel i Kjæverne, som paa 

 Vomer og- paa Palatinbenene. Kjævetænderne ere størst 

 og sterkest, især de forreste: ældre Individer, især de 

 gamle Hanner, have enkelte af disse forlængede, især i 

 Overkjæven, saa at de danne et Slags åmtes canini; af 

 saadanne tindes 1 eller 2 paa hver Side. Ogsaa hos Hun- 

 nerne og de yngre Individer ere disse Hjørnetændér tilstede, 



General Description. Structure of the Body. — ln 

 this species, the sexes can be distinguished by the outward 

 form alone, the male having stouter jaws, which extend 

 farther back than in the female; the teeth, too. are stronger. 



Position of vent about the same as in L. medius, the 

 length of the body anterior to the vent being to that of 

 the postanal region as 1 to 1.3. Posterior • to the 1 vent. 

 in female individuals, occurs an exceedingly minute anal 

 papilla, also observed by Kroyer, which is wanting in males. 



Depth of body at nape is to total length as 1 to 12.5 — 13. 

 Posterior, to the nape, there is a. slight increase in depth; 

 midway between the origin of the ventrals and the vent, 

 the depth of the body, which is greatest here, is contained 

 from 9.5 to 10 time.s in the total length. 



Length of head to total length almost exactly as 1 

 to (i (or but a fraction less). In young examples, the 

 length of the head is relatively greater, being to total 

 length, in one individual (total length 69"""). as 1 to 

 5.3. Upper jaw perceptibly longer than lower: snout 

 curved: in adult males, which have the whole region of 

 the jaws much stronger than females, the cleft of the mouth 

 extends back to the posterior margin of the eye. whereas 

 in females and immature individuals it hardly reaches above 

 the middle of the eye. Eyes large and close together, 

 longitudinal diameter slightly exceeding length of snout, 

 and proportionate to the length of the bead: in young indi- 

 viduals, as 1 to 3. in adults, as 1 to 3 :i /,i. One pair of 

 nostrils, furnished with a short tube: a mucous pore (pos- 

 sibly a nostril) occurs close to each nostril. 



Branchial opening wide, extending, on the under sur- 

 face of the head, a little beneath the posterior margin 

 of the eye (sometimes not quite so far). Branchiostegous 

 membranes, furnished with 6 rays, contiguous on the under 

 surface, but. as a rule, not producing a free fold on the 

 throat (in a full-grown male, however, a short fold of this 

 kind was observed, the length scarcely . exceeding I"""-). 



Teeth in jaws, on the vomer, and on the palatine 

 bones. The maxillary teeth, more especially the foremost, 

 larger ami stronger than the others; mature individuals, 

 in particular old males, have some of these teeth elongated, 

 mostly in the upper jaw, resembling denies mnini, 1 or 2 

 on either side. The females, and all mature individuals, 

 also distinguished by these canine teeth, which are, 



