THE DISCOBOLI. 81 



paved, the jaw presenting a smooth, rounded surface, on which the teeth 

 are little evident, but occasionally present sharp projecting points. Lower 

 jaw included. 



" A series of conspicuous mucous pores on snout, mandible, and on 

 preopercle. Gill opening a narrow slit above base of pectorals. 



" Pectoral fin divided into two wholly distinct lobes not connected by 

 intervening rays, a space without rays present, equaling diameter of pupil. 

 The lower lobe consists of four rays, the longest three-fifths head, inserted 

 under preopercular margin. The main portion of the fin consists of about 

 fifteen rays and is but slightly longer than the lower lobe ; dorsal beginning 

 behind middle of pectorals, its distance from tip of snout 4^ in length ; dis- 

 tance of origin of anal from tip of snout equaling one third standard length. 



" Vent under base of upper pectoral rays, but wholly behind base of 

 lower lobe of pectorals, its distance from tip of snout equaling length of 

 head, and equaling also its distance from origin of anal. No trace of ven- 

 tral disk or fins. D, 58 ; A. 53. 



"Color: Light rose-red, the fins and head largely jet black. Abdomen 

 behind vent blackish. Peritoneum and lining membranes of mouth and 

 gill-cavity jet black. A single specimen, 5J inches long, from Station 

 2919, in 984 fathoms." 



Hab. — Off Pacific coast of the United States. 



ParaUparis bathybius. 



Liparis (ParaUparis) hathyUi Collett, 1878, Vid.-Selsk. Forh. Chr'a, No. 14, p. 32. 

 Liparis hathyhii Coll., 1880, Norske Noi'd.-Exp., p. 52, pi. ii. fig. 14. 



ParaUparis bathi/bius Gthr., 1887, Challenger Deep-Sea Fishes, p. 68, pi. xii. fig^C; Gill, 1891, Pr. 

 U. S. Mus., XIII. 373. 



B. 7 (? 6) ; D. 59 ; A. 51 ; p. 13 + 3 (4) + 3 ; C. 8. 



Head short and globular ; equal in length to the depth of the body, 

 or to two elevenths of the total length. Orbits large, two sevenths of the 

 length of the head, or three fifths of the interorbital space. Dorsal and 

 anal fins covering two thirds of the caudal. Snout short, little longer 

 than the orbit. In the pectoral the upper portion is separated from the 

 lower by a space occupied by three or four rudimentary rays. Concern- 

 ing the eyes, the ventral di.sk, and the position of the vent, nothing is 

 known. Specimen described a female of 208 mm. Color brownish black. 



(Collett.) 



11 



