29 



G^en. Centrid.exT3aich.thLys s Richards. 



Zool. Voy. Sulph. Pishes, p. 7:; i 1843). 



Tlnredei forholdsvis fladtryht og bredt, Legemet 

 trindt, (/lot viler granuleret. Prasoperculura vcebnet. 

 Tænder i Kjæveme, paa Vomer og pact Palatin- 

 benene. Sidelinie tilstede. 2 Dorsaler. Gjællekin- 

 derne samincidtooKjcnde poo Jlovedets Underside. 



7. Centridermichthys uncinatus. (Reinh.) 1833—34. 



(PL I. fig. 7). 



Cottus uncinatus, Reinh. Overs. 1833—34, KgL D. Viil. Selsk. Xaturv. 



Math. Ath. 6. Del, p. XLIV. Khhvn. 1837 (1833—34). 

 Tcelm uncinatus, Kr. Naturh. Tidsskr. 2. Række, I. B., p. 263 (1844). 

 Centridermichthys uncinatus, Griinth. Cat. Fish. Brit. Mus. Vol. 2, p. 172 



1 1 sii(l). 



Diagn. Legemet overall (flat, ligesom Sidelinim : den 

 sidste bestaaende af omtr. 18 Porer. Hovedet indeholdes 3 l /j 

 Gange i Totalt. Øjnene særdeles tætstaaende og store, indeholdes 



omtrent .;",;• Gange i Hovedleengden. Praeoperculum hur 2 

 Tome, den øvre Moformig krummet og særdeles skarp. Et 

 Par stumpe Kumler paa Baghovedet. Bumdfarven hvidagtig 

 mul graabrune Pletter, der Ims de Yngre oftest ere 3 nedad 

 Ryggen . men mere urer/el 'nuessiye hos de .Eldre. Anal- 

 papille mangler. Størrelsen i mit il 100 m ". 



M. B. 6. 1 D. 7—8; 2 D. 13 (12 riler 14); A. 11; 

 P. 18—19 (20—21); V. 4; C. ijllji. Lin. lat. 18. 



Localit. fra Nordh. Exped. Havet mellem Nordcap 

 og Spitsbergen. 



Bemærkninger til Synonymien. Slægten Centriderm- 

 ichthys, opstillet af Richardson i Zool. Voy. Sulph. Fishes 

 p. 73 (1843) for et Antal cottoide Fiske fra det arctiske 

 Nord-America samt Nordost-Asiens Kyster, adskiller sig 

 alene ved Tilstedeværelsen af Tænder paa Palatinbenene 

 fra den typiske Slægt Cottus. Hidtil er alene en enkelt 

 Art. C. uncinatus, (Reinli.), fanden i Europa; denne op- 

 stilledes af Reinhardt sen. fra Granland i 1833 under Nav- 

 net Cottus uncinatus. 



Den korte Diagnose, hvormed Reinhardt ledsagede 

 sin nye Art,- er indtil de seneste Aar bleven udeii Tillæg 

 gjentaget, saaledes i 1844 af Krøyer (Naturh. Tidsskr. 2den 



(■en. < 'onlviclovmiolith.vs, Richards. 



Zool. Voy. Sulph. Pishes, p. 7:; 1 1843). 



Head comparatively depressed ond broad; body 

 plumpa smooth or granulated; preoperculuyn armed; 



teeth 



III 



jaws, mi rower, and palatine bones. 



Lateral line obvious; tWO i/arsal fins: hranchiaj 



membrane continuous on the under surface of the head. 

 7. Centridermichthys uncinatus. (Reinli.) 1833—34. 



(PL I. He 7.) 



Cottua uncinatus, Reinh. Overs. 1833 34, KgL 1>. Vid. Selsk. Naturv. 



Math. Afh. 8. Del p. XLIV, Kl.hvn. 1837 (1833—34). 

 Icelus uncinatus, Kr. Naturh. Tidssk. 2. Række, i. B. p. 263 (1844). 

 Centridermichthys uncinatus, (iiinth. Cat. Fish. Brit Mus. Vol.2, p. 172 



(1860). 



Diagnosis. -- Body and lateral line smooth : fhelatter 

 consisting of is pores: length of head to total length as 1 

 to 3 l / 8 ; eyes exceedingly close together, and large, longitudi- 

 nal diameter to length of head as 1 to 2 i j : .: two spines on 

 preoperculum, the upper aric/aeal. hooked, and exceedingly 

 sharp: two blunt obtuse protuberances on the occiput; ground 

 colour whitish, with greyish brown spots, generally three in 

 young examples, varying more in adults. Analpapitta mint- 

 ing; length reaching 100""". 



M. B. 6. 1 D. 7—8; 2 D. 13 (12 or 14); A. 11; 

 P. 18—19 (20—21); V. 4; C. 4/12/4. Lin. lot. 18. 



Locality (North Atl. Exped.): — The open sea, 

 between the North Gape and Spitzbergen. 



Remarks on the Synonymy. — The genus Cent- 

 ridermichthys. etablished by Richardson in Zool. Voy. Sulph. 

 Fishes, p. 73 (1843) for divers Cottoid fishes occurring in 

 ,the Arctic regions of North America and off the north- 

 eastern shores of Asia, is distinguished from the typical 

 genus Cottus solely by the presence of teeth on the palatine 

 bones. Up to the present time, but a single species. C. 

 uncinatus. (Reinh.). has been met with in Europe; it was 

 first described by Reinhardt sen. from the coast of Green- 

 land, in 1833. under the name of Cottus uncinatus. 



The brief diagnosis given by Reinhardt has been copied, 

 till but a few years since, without addition, by Krøyer in 

 1841 (Xaturh. Tidsskr. 2. Række. 1. Bind), and by Gun- 



