DISCUSSION OF SPECIES AND THEIR DISTRIBUTION. 275 



the Porcupine, in 180 fathoms, north of Shetlaud. The form to wliuth he refers is doubtless 

 that known to American students as L. lineata. 



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

 England, in 30 to 60 fathoms, parasitic in the shell of a large scallop, Pccten tenuicostatus, 

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



CAREPROCTUS, Kroyer. 



Careproctiis, KrOyer, Naturh. Tidsskr., i, 257, 1862 (type, Liparis Beitihardti, Kroyer). — Garman, 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 fin. 



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

 body deeper in front of the dorsal fin; 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), Kroyer. 



Oydopterus gelatinoaus, Pallas, Spicile^ia Zoologica, vii, 1769, 19, pi. in, fig. 1. 



tij)«n's 3('?rt(iHosH8, CuviER, R&gne Animal, eil. 1, 1817,11,227. — Guntuer, Cat. Fish. Brit. Mus., ui, 163; 



ChallengLT Report, xxil, 1887, 57.— Reinkardt, Oversigt, etc., 1844, Ixxvii. 

 Careproclus gelaliiiosiis, Kroyer, loc. cit. — Jordan and Gilbert, Bull, xvi, U. S. Nat. Mus., 740. — Garman, 



Discoboli, 76. 

 Liparis Seinhardti, Kroyer, Naturb. Tidsskr., 1,252. 

 Careproctun Ileinhardti, Kroyer, Naturb. Tidsskr., i, 1862, 252. — Collett, Norsk. Nordb. Exp., Fiske, 57, pi. 



II, tigs. 15, 16. 



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

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

 inous; head thick, flat above; cleft of mouth nearly vertical, as in Uranoscopus; a series 

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



Radial formula: D. 50; A. about 4.5; C. 6; P. 30. Ca;ca 48. Vertebne 64. 



Rose-colored with vertical fins violet; gill cavity black. (Giinthcr.) 



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

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

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

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



Careproctus spectrum, Bean, from xilaska (Proc. U. S. Nat. Mus., xiii, 40), is an allied 

 form. 



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



Liparis raniila, GoODE and Bean, Proc. U. S. Nat. Mus., ir, 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-1'ourtli 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 length of the body; its greatest width (.18) very 

 slightly greater aiidequalingtwicetliewidthof the ventral disk. Snout broad, with promi- 

 nent vertical profile; its length about one-fourth that of 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 tliird of length of head; that of mandible slightly 

 greater tliau length of ventral disk. Eacli jaw armed with a band of villiform tcetli ; tongue 

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



