422 NEW FISHES from: pa CIFIC ocean— gilbert 4- CRAMER, vol. xix. 



with 10. rather irregularly arranged. All of the dorsal and lateral sur- 

 faces of head densely scaled; ventral surface of head and snout naked. 

 A narrowly elliptical pit on median line in front of base of ventrals, 

 naked in the young, covered with cycloid scales in adults. Second dor- 

 sal spine slender, not much prolonged l)eyoiHl the rest, apparently 

 smooth, but with 2 excessively minute spinelets, and 2 still more minute 

 knobs, all i)laced considerable distances apart. Base of first dorsal 

 nearly ccjual to interorbital space; distance between dorsals only one- 

 third interorbital space. Pectorals narrow, 2 in head exclusive of 

 rostral si)ine. Outer ventral ray somewhat elongated into a filament, 

 nearly as long as pectorals, not reaching origin of anal. Distance from 

 vent to isthmus about 1^ in head exclusive of rostral spine; from base 

 of ventrals to origin of anal, 2 in head; vent immediately in front of 

 anal fln. 



Color {in alcohol). — Light brownish, head a little dusky. A large 

 round, black spot immediately above ami behind base of i)ectoral Jin. 

 A broad, faint, cross band above origin of anal fin, and four other 

 fainter ones on the tail. A snuill, round, brown spot on middle of 

 occiput. Ventral part of trunk brownish black. Branchiostegal mem- 

 branes with minute dark specks. First dorsal fin white, its anterior rays 

 broadly black-margined. Ventrals white. 



In a young specimen, 2j| inches long, the rostral spine is only a small 

 but well-marked flexible point; hence the head relatively shorter, 3i in 

 total ; scales very deciduous, their spinelets fewer, relatively longer and 

 more slender; first dorsal spine with 3 or 4 very minute knobs or rudi- 

 ments of spinelets. The spinelets on the characteristic ridges of the 

 head sharp. Outer ventral ray umch prolonged, reaching far beyond 

 origin of anal; the color bands more marked. Distance from vent to 

 base of ventrals less than one-half length of head ''abdomen shorter 

 than in adult). 



Four specimens, 2i to 0|| inches long, from station 3472; 295 fathoms. 



Type.—^o. 4:7700, U.S.N.M. 



CCELOCEPHALUS, new genus. 



CCELOCEPHALUS ACIPENSERINUS, new species. 



(Plate XLII, tig. 1.) 



Head about 4f; depth Of to 9; B. 7. First dorsal 1, 10 to 1, 11; 

 second dorsal low; anal rays Avell developed; pectorals, about 22 to 

 24; ventrals, 8 to 9. Snout much depressed, flat, thin, projecting hori- 

 zontally much beyond the mouth, its tip formed by a bifid, spinigcrous 

 tubercle, its length 2^ in head, its lateral edges fringed with a thick, 

 spinigerous roll of integument, extending backward to and contiguous 

 with the prominent infraorbital ridge, which extends to below the i)Os- 

 terior rim of the orbit and divides the cheek into an up[>er somewhat 

 sloping and a lower nearly horizontal part. A small, bony prominence 



