NATURAL SCIENCES OP PHILADELPHIA. 261 



"La Recherche," Poissoyis, tab. vii. Gill, op. cit., p. 46. Giinther, o^. 

 cit., vol. iv. p. 320. 

 Hab. Greenland. 



Lycodes seminudus Reinhardt. 

 Synonymy. 

 Lycodes seminudus Reinhardt, op. cit., deel vii. p. 223. Gill, Cat,, p. 46. 

 Giinther, op. cit., vol. iv. p. 320. 

 Hab. Greenland. 



Lycodes nebulosus Kroyer. 

 Synonymy. 

 Lycodes nebulosus Kroyer, Oversigt over det Kongelige Danske Videnska- 

 bernes Selskabs, &c, 1844, p. 140. Gill, Cat., p. 46. Kroyer, Natur- 

 historisk Tidsskrift stiftet af Henrik Kroyer, udgivet af Prof. J. C. 

 Scbiodte, naepes iii. hafte ii. p. 293, 1862. 

 Hah. Greenland. 



Lycodes mucosus Richardson. 

 Synonomy. * 

 Lycodes mucosus Richardson, Last of the Arctic Voyages, p. 362, pi. 26, 1855. 

 Gill, Cat., p. 46. Giinther, op. cit., vol. iv. p. 320. 

 Hab. Northumberland Sound. 



Lycodes polaeis Richardson. 

 Synonomy, 

 Biennius polaris Sabine, in Parry's Journal of a Voyage for tbe Discovery of 

 a Northwest Passage, &c, performed in 1819-20, &c, Supplement to 

 Appendix, p. ccxii. 

 Zoarces polaris Richardson, Fauna Boreali-Americana, Fishes, p. 94. 

 Lycodes polaris Richardson, Last of the Arctic Voyages, p. 362. Gill, Cat., p. 

 46. Giinther, op. cit., vol. iv. p. 321. 



Subfamily GYMNELINuE Gill. 



Genus GYMNELIS Reinhardt. 



Synonomy. 



Gymnelis Reinhardt, Kongelige Danske Videnskabernes Selskabs Nat. og 

 Math. Afhandlingar, deel vii. p. 130, 1838. Seq. Richardson, Kaup, 

 Gill, Kroyer, Giinther. 

 Cepolophis Kaup, Wiegmann's Archiv. fur Naturgeschichte, 1856, band i. p. 



96, 1856. 

 Gymnelis Giinther, Catalogue of the Fishes in the British Museum, vol. iv. 



p. 323, 1862. 

 Ophidium sp. Fabricius. 



Body naked, elongated and slender, compressed, especially behind the ab- 

 domen, and with the anus situated little behind the anterior third of the 

 length, and with a moderate papilla. 



Head, oblong, rather small (one-sixth or seventh of total length), and de- 

 clivous in front to the snout. Eyes moderate, entirely in the anterior half 

 of the head. Nostrils single. 



Mouth with the cleft moderately oblique and quite deep, the supramaxillars 

 generally extending wholly under or behind the eyes. Jaws equal in front ; 

 lower oblong and rounded in front. 



Teeth small and acute, pluriserial at the front of jaws, uniserial on the 

 sides, as well as on the vomer and palatine bones. 



Branchial apertures rather small, scarcely extending in front of the upper 

 portion of the bases of the pectoral fins. 



1863.] 



