REVISION OF THE FISH FAMILY LIPAPJDAE 



137 



may be in groups of as many as 12 or more. Pyloric coeca 1.7 in 

 the head, on the left side. 



Origin of the dorsal over the gill slit; the anterior third of the rays 

 buried beneath the fin membranes; the rays increasing rapidly in 

 length. Anal similar to the dorsal. Caudal slightly rounded, com- 

 posed of stout rays, connected for three-fifths of its length to the anal; 

 dorsal and anal connections with the caudal abrupt. Pectoral 

 deeply notched; the lower lobe of thickened, partly free, exerted rays, 

 reaching the anal and extending back nearly as far as the uper lobe, 

 nearly equal to the head; in the small specimen shorter, 1.6 in the 

 head. Disk small, hidden in a depression between the lower pectoral 

 lobes, slightly cupped, triangular, as wdde as long; the flap thickened 

 and suspended, posteriorly folded over 

 the center; tip of mandible to disk 10.2 

 in the length Avithout caudal. In the 

 small specimen the disk is more prom- 

 inent and slightly triangular. Vent 

 next to the disk. 



Color: Opaque white; pores on the 

 sides yellowish; stomach and part of 

 the intestines dotted; peritoneum sil- 

 very; coeca dusky at the base. 



Synopsis. — Dorsal 58-59; anal 52; 

 pectoral 34-37; caudal 8; pyloric coeca 

 21-34. Depth 2.8-3.3 in length with- 

 out caudal; head 3.5. Eye 4.6-4.8 in 

 the head; disk 3.7 in the young to 7.8 

 in the adults ; lower lobe of the pectoral 

 1.1 in the adults and 1.6 in the j^oung. 

 Body deep, shorter than in C. acantJiodes 

 and C.tracJiysoma. Teeth simple, mod- 

 erately stout. Eye moderate, black in 

 all our specimens. Gill slit extending down in front of four or five 

 pectoral rays. Cactuslike pricldes present. Lower lobe of the pec- 

 toral fin reaching to the origin of the anal fin, nearly equal to the head 

 in the adults, 1.6 in the head in the young. Disk small, slightly cup- 

 ped and triangular; tip of mandible to disk 9.6 to 10.8 in the length 

 without the caudal. Body opaque, white, pinkish in life, peritoneum 

 silvery, undotted; stomach pale, dotted or not. Tliree specimens, 

 the largest 280 mm., the smallest 84 mm. in length. 



CAREPROCTUS TRACHYSOMA Gilbert and Burke 



Careproctus trachysoma Gilbert and Burke, 19126, p. .364. 



Type.— Male, No. 73333, U.S.N.M.; Albatross Station 4982, Japan 

 Sea; depth 390 fathoms. Length 263 mm. 



Figure 59.— Carepkoctus rastrinus. 

 Prickles from type 



