490 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 
fossa, the area between the orbit and the infraorbital ridge, and the 
underside of the head are completely naked. 
Length of first dorsal base, 1.6 (1.6, 1.9) in postorbital length of 
head; length of interdorsal space (1.3, 1.6) in postorbital Length 
of fin-rays in head—second dorsal spine 2.0+-1(1.7-++) ; pectoral fin, 
2.1+1 (2.0+-7) ; length of outer ventral ray, 2.4 (1.75, 2.5) ; length of 
inner ventral rays, 3.1 (in largest paratype). 
Coloration in aleohol_—Dark brown (as in platorhynchus), becom- 
ing blackish on the fins, belly, underside of head, and the opercle. 
The buccal, branchial, and visceral cavities are lined by dark 
brownish membranes; the light margin along the free edge of the 
branchiostegal membrane is indistinct. The color is lighter in the 
young, being grayish on the head. 
Fic. 18.—CoErELORHYNCHUS ACANTHOLEPIS. TYPE. 
Measurements of type in hundredths of length to anus (113 
mm.).—Length of head, 71; length of orbit, 21; postorbital length 
of head, 24.5; least interorbital width, 16.5; least suborbital width, 
10.5; distance between orbit and preopercular margin, 26; preocular 
length of snout, 28; length of upper jaw, 19; greatest depth of body, 
39; greatest width of body (across pectoral bases), 28; distance be- 
tween center of anus and base of outer ventral ray, 26; distance be- 
tween ventral and isthmus, 24.5; length of first dorsal base, 15; length 
of outer ventral ray, 30. 
35. COELORHYNCHUS CARINIFER, new species. 
Coeclorhynchus platorhynchus form alpha RapcuiFrre, Proe. U. S. Nat. Mus., 
vol. 48, 1912, p. 184 (specimen from Albatross station 5111 only, the type 
of C. carinifer). 3 
Type-specimen.—Cat.. No. 78223, U.S.N.M.; 332 mm. long to end 
of broken pseudocaudal, 128 mm. long to anus; dredged at Alba- 
1 Indicating a broken tip. 
