DISCUSSION OP SPECIES AND THEIR DISTKII5UTION. 275 



the Porcupine^ in 180 tatlioms, north of Shethuul. The form to which he. refers is doiihtloss 

 that kuowu to Americau students as L. Uneata. 



This species was often taken by the Fish Commission vessels off the south coast of New 

 England, in 30 to (30 fathoms, parasitic in the shell of a larjLfe scallop, Pccten teHuicostufHs, 

 in company often with a crab of the genus rinnothcrcs, closely related to the " oyster-crab." 



CAREPROCTUS, Kroyer. 



Careproctua, KrOyer, Naturh. Tidsskr., i, 257, 1862 (type, Liparis Be'mhardti, Kroyer).— Garm an, Discoboli, 

 1892, 72. 



Liparidoids with body elongate, covered with thin lax skin, translucent. Mouth oblique, 

 with projecting lower jaw. Teeth simple, hooked (tricuspid in young). Ventral disk small, 

 under head, the vent a little behind ventral disk, but far in front of anal tin. 



Garman shows that the head of Careproetas is higher posteriorly than in Liparis; the 

 body deeper in front of the dorsal tiu; the caudal region longer, slenderer, more tapering; 

 the dorsal and anal having more rays, and more completely joined with caudal; the ventral 

 disk reduced in size ; and the suborbital process less developed. 



CAREPROCTUS GELATINOSUS, (Pallas), Kuoyer. 



Oyclopterus gclafinosns, Pallas, Spioiles;ia Zoiilogica, vir, 1769, 19, pi. in, tig. 1. 



Liparis getatiiio8ii.i, CuviBR, Riigne Animal, cd. 1, 1817, ii, 227. — Gunther, Cat. Fish. Brit. Mas., in, 163; 



Challenger Report, xxii, 1887, 57.— Reinhardt, Oversigt, etc., 1811, Ixxvii. 

 Careproctus gelatinosiis, Kroyer, loc. cit. — Jordan and Gilbert, Bull, xvi, U. S.Nat. Mus., 740. — Gar.man, 



Discoboli, 76. 

 Liparis Beinhardti, Kroyer, Naturh. Tiilsskr., i, 252. 

 Careproctus lieinhardti, Kroyer, Naturh. Tidsskr., i, 1862, 252. — Collett, Norsk. Nordh. Exp., Fiake, 57, pl. 



II, figs. 15, 16. 



Ventral disk very small, supported by a bilamellate cartilage descending from the 

 throat; vertical fins continuous. Body oblong, compressed, semitranspareut, soft, and gelat- 

 inous; head thick, flat above; cleft of moutli nearly vertical, as in Uratioscopiis; a series 

 of jjores along upper lip; jaws, palate, and pharynx rough with teeth; skeleton very weak. 



Radial formula: D. 50; A. about 45; 0.6; T. 30. Caeca 48. Vertebrae 64. 



Eose-colored with vertical fins violet; gill cavity black. (Giinther.) 



An Arctic circumpolar species, first described from the Xorth Pacific (Bering Strait), 

 afterwards found on the Greenland coast, and recently discovered by the North Atlantic 

 Expedition about Jan Mayen and Bear Island, and off Arendal, at depths varying between 

 263 and 658 fathoms ; also found in the Kara Sea. 



Careproctus spectrum^ Beau, from Alaska (Proc. U. S. Nat. Mus., siii, 40), is an allied 

 form. 



CAREPROCTUS RANULA, Goode and Bean. (Figures 251 and 251 A, B.) 



Liparis raiud/i, GoODE and Bean, Proc. U. S. Nat. Mus., ii, 1879, 46. — Jordan and Gilbert, Bull, xvi, U. S. 



Nat. Mus., 742. 



A species with body thick, subcylindrical anteriorly, rapidly tapering to the tail, cov- 

 ered with a thick lax integument; its greatest height (.25) equals the length of the head 

 and is one-fourth of the total length of the body without caudal. 



Head somewhat tumescent at the nape; its height (over the ventral disk and eyes) con- 

 tained something over six times in the lengtli of the body; its greatest width (.18) very 

 slightly greater and equaUug twice the widthof the ventral disk. Snout broad, with promi- 

 nent vertical profile; its length about one-fourth thatof the head. Cleft. of the; mouth hori- 

 zontal, not extending to perpendicular from the anterior margin of the orbit. Lips covered 

 with thick lax skin, the upper jaw extending beyond the lower. 



Length of the upper jaw about one-third of length of head: that of mandible sligiitly 

 greater than length of ventral disk. Each jaw armed with a band of villiform teeth ; tongue 

 thick, obtuse. Eye is lateral, not interfering with the upper profile of the head ; its diame- 



