NO. 1907. XEW CYCLOGASTERID FISHES— GILBERT AND BURKE. 



369 



Dorsal origin above tip of opercular flap. Caudal slender, appar- 

 ently ynth six rays, joined to anal for about one-third its length. 

 Pectoral notched; the lower lobe of six rays reacliing halfway be- 

 tween vent and anal. Disk small, rather deeply cupped, placed 

 behind vertical from posterior margin of eye. (Fig. 10.) 



Color uniform jet black; mouth dusky; gill cavity and peritoneum 

 also black. 



A deep-sea species related to C. colletti, distinguished among other 

 characters by the small number of rays in the pectoral fin. 



Only the type known. 



18. CAREPROCTUS ROSEOFUSCUS, new species. 



Plate 45, fig. 3. 



T>jpe.—Cat. Xo. 73338, U.vS.N.^^. Ninety-one mm. long, from sta- 

 tion 5026, off the southeastern part of vSagalin Island, vicinity of Cape 

 Patience; depth 119 fathoms. 



Measurements in hundredths of total length exclusive of caudal 

 fin (81 mm.): Length of head 26; greatest width of head 18; inter- 

 ocular width 12; width at angles of mouth 10; distance from tip of 

 snout to front of orbit 11.5; diameter of eye 5; distance from tip of 

 snout to end of maxillary 11 ; length of gill slit 3.1; greatest do])lh of 

 body 25; distance from tip of snout to front of disk 16; to anus 26; 

 to front of anal fin 35; to front of 

 dorsal 27; diameter of disk 5.5; dis- 

 tance from disk to anus 6 ; longest 

 pectoral ray of upper lobe 18; of 

 lower lobe 9 ; shortest ray in notch 7. 



Dorsal 57; anal 48; pectoral 30; 

 pyloric ca^ca 22. 



Body deep and compressed, re- 

 sembling in this respect C. segali- 

 ensis and Cn/staTlichthi/s inirahilis. 

 Head short, deep and compressed, 

 its depth greater than its width; interorbital narrow. Snout short, 

 rising abruptly, scarcely overpassing the mouth; jaws equal; nostril 

 in a prominent tube; eye small, not prominent. Mouth narrow; 

 maxillary reacliing vertical from middle of pupil. Teeth simple, 

 lanceolate, curved backward, in 8 or 10 obli(iuo rows in the half of 

 each jaw. Gill slit reduced to a small opening above pectoral, not 

 extending do^vn to upper pectoral ray. 



Origin of dorsal above gill slit; about 15 of the anterior rays 



enveloped in a gelatinous tissue beneath the skin. Caudal of eight 



rays; anal joined to basal half of caudal. Pectoral notched, the 



lower lobe short, consisting of five rays, the longest reaching nearly to 



20441°— Proc.N.M.vol.42— 12 24 



Fig. 11.— Relative sizf: ANDPOsmoN or vent 



AND DISK OF CaREPROCTUS HOSEOFUSCVS. 



