2] 



staa paa liver Side et 

 ' til Spidsen ere klædte 



Øjnene 

 der lig 



den ydre den mindste (hos det 

 er den oæsten umærkelig). I 

 bagenfor disse staa 

 er af Højde og Form 



og Gjællespaltens ovre 



men have stor Lindse; 

 vanskelig at drage, da 



Over Bagranden a 

 Par kegleformige Kumler. 



af Hovedbilden : af disse ei 

 mindre Ex. fra Stat. 362 



omtrent en Orbitaldiameters Afstand 



paa liver Side en enkelt Knude. der 

 som den største at' de forreste. Tilsammen danne disse 4 

 største Kunder et Qvadrat, hvis Bredde indeholdes omtr. 

 l 1 / i Gang i deres Længde, og de repræsentere selvfølgelig 

 den samme Anordning at Pandeknuderne, som hos de Heste 

 øvrige Arter af denne Familie. Endelig rindes et Par 

 Stumpere Kunder paa hver Side af Hovedet i den Linie. 

 der strækker sig mellem Øjets 

 Rand. 



Øjnene ere forholdsvis smaa 

 dog er Øjets ydre Begrændsning 

 < Iverlnulen er beklædt med de samme spidse Bcntorne. som 

 ere stroede ud over hele Hovedet, lige hul mod Lindsen. 

 Navnet microps er derfor kun forsaavidt betegnende, som 

 aæsten hele Iris er skjult under denne farvede og ru Over- 

 hud. Dog maa ( )rbitas Længde antages at indeholdes over 

 5 Gange i Hovedets Længde; Afstanden fra Lindse til 

 Lindse indeholdes omtrent å l j. 2 Gange i Hovedlængden, 

 og Interorbitalrummet bliver paa Grnnd heraf temmelig 

 bredt. 



Munden er bred og vid. og Mundspalten gaar tilbage 

 til under Midten af Lindsen. Underkjæven rager ganske 

 ubetydehgt frem foran Overkjæven. 



Xæseborene ere 2 Par. hvoraf de nederste ere rør- 

 formigt forlængede. Overkjævens Rand. det forreste Næse- 

 bor, det bagerste Næsebor, og Øjet, ligge fjernede i en 

 indbyrdes Afstand fra hinanden af omtr. en Lindsediameter. 

 Tungen er særdeles bred og tyk, og fortil fri. 



Gjadlehinderne have 6Straaler; de ere ikke sammen- 

 voxede paa Hovedets Underside, saaledes at de danne en 

 tvers over denne lobende fri old. saaledes som hos alle 

 de øvrige Slægter af vore cottoide . iske (Cottus. Fhdbekor, 

 Centridermicfdhys, Icdus, Triglops, etc A men ophører 

 ved den nedre Ende af hver Gjadlcspalte. Den indbyrdes 

 Afstand mellem Gjællespalterne paa Hovedets Underside er 

 omtrent lig Hovedets postorhitale Del. saaledes forholdsvis 

 betydelig. 



Gjællespalten er forholdsvis vid og strækker sig fra 

 Pectoralens nedre Fæste op til ovenfor Legemets Midtlinie. 

 Operculum er særdeles stort og bredt, og dækker et ikke 

 ubetydeligt Parti af Legemet mellem Gjællespalten og Pec- 

 toralen; den ovre fri Rand af Operculum danner derfor 

 en næsten ret Linie af Længde som en Øjendiameter. 

 Gjællerne ere af normal Bygning. 



Tænderue ere tilstede i Kjæverne og paa Vomer, 

 men mangle paa PaJatinbenene. 1 < >ver- og Underkjæven 

 danne de flere Rækker; paa Vomer sidde de i 2, neppe 

 sammenhængende Felter. 



Finnerne. Straaleantallet i de forskjellige Finner viste 

 sig at være følgende: 



a. • b. c. 



Dorsalen . . . . 20 (6 + 14) ; 21 (6 + 15) ; 20 (6+14). 



Above the posterior margin u( flic ryes. on either 



side, occur a couple of cuneiform protuberances or tuber- 

 cles, enveloped up to the point in the skin of the head: 

 the exterior is the smaller of the two (in the small 

 example from Station 362 scarcely obvious). Posterior to 

 these tubercles, OD either side, distant about the length of 

 the orbital diameter, is an isolated tuberbcle, the same in 

 shape and size as the larger of the two anterior ones. The 

 four Largest tubercles form a quadrangle, the breadth being 

 to the length as 1 to l 1 /^; hence the disposition of these 

 protuberances is precisely the same as in most of the other 



species of Cottidce. On either side of the head 2 tuber- 

 cles, somewhat more obtuse, occur along the line extending 

 between the eye and the upper margin of the gill-opening. 



Eyes comparatively small, but with large lenses ; the 

 exterior limit of the eye, however, is difficult to determine, 

 the cuticle being studded, nearly to the edge of the lens, with 

 sharp osseous prickles, similar to those dispersed over the 

 entire surface of the head. Hence the name microps is 

 not otherwise appropriate than from the circumstance of 

 the iris being almost entirely hidden beneath the rough and 

 coloured cuticle. The diameter of the orbit cannot, how- 

 ever, be much less than one-fifth of the length of the head; 

 the distance between the lenses is to the length of the 

 head as 1 to 3 1 /:,; interorbital space consequently broad. 



Mouth wide, the maxillary extending to the middle 

 of the eye. The lower jaw slightly projecting beyond 

 the upper. 



Nostrils double, each of the lower tubular. Distance 

 between the margin of upper jaw. the anterior nostril, the 

 posterior nostril, and the eye in each case about equal to 

 the diameter of the lens. Tongue exceedingly broad and 

 thick, the forepart detached. 



Brancheostegous rays 6 ; the gill membrane not con- 

 tinuous across the isthmus and connecting the gill-openings 

 by a detached cutaneous flap, as is the case in almost all 

 the other genera of our Cottoid fishes (Cottus, Phobetor, 

 CmtridermicMkys, Icdtis, Triglops, etc.), but attached to 

 the isthmus, and terminating at the lower extremity of each 

 opening. Distance between the lower margin of the gill- 

 openings about equal to the length of the postorbital 

 region of the head, and hence comparatively great. 



The gill-openings are comparatively wide, extending 

 from the base of the pectorals to some distance above the 

 mesian line of the body. Operculum very large and broad, 

 covering a considerable portion of the body between the gill- 

 openings and the pectorals; upper free margin of oper- 

 culum, in length about equal to the diameter of the eye. 

 consequently almost straight. Structure of gills normal. 



Teeth in jaws and on vomer, wanting on the palatine 

 bones. Along the maxillaries they are regularly disposed 

 in several well-defined series; on the vomer, the arrangement 

 is in two quadrangular divisions, probably continuous. 



Fins. — The fin-ray formula in the 3 specimens was 

 as follows: — 



a. b. c. 



Dorsal . '. . . 20 (6 + 14); 21 (6 + 15); 20 (6 + 14). 



