PHILIPPINE MACROUROID FISHES— GILBERT AND HUBBS. 469 



Measurements in hundredths of length to anus (65 mm). — 

 Length of head, 78 ; length of orbit, 22 ; postorbital length of head, 

 23; least interorbital width, 14; least suborbital width, 9; distance 

 between orbit and margin of preopercle, 25; length of snout, 34; 

 width of snout, 27; length of upper jaw, 18; length of barbel, 4; 

 depth of body, 43; width of body across pectorals, 31.5; distance 

 from origin of anal to center of anus, 9; distance from anus to 

 base of outer ventral ray, 20 ; distance between ventral and isthmus, 

 24; length of second dorsal spine, 69+; length of third dorsal ray, 

 66; length of first dorsal base, 16; length of interdorsal space, 18; 

 length of pectoral, 49; length of outer ventral ray, 44; length of 

 second ventral ray, 28. 



(triocellatus, in reference to the three ocellated marks.) 



29. COELORHYNCHUS DORSALIS, new species. 



Type-specimen.— Cat. No. 78219, U.S.N.M.; a male, 200 mm. 

 long (extreme tip of tail broken off), 59 mm. to anus, dredged 

 by the steamer Albatross at station 5329, in 212 fathoms, off north- 

 ern Luzon, where the bottom temperature was recorded at 51.4° F. 



A single paratype, 155 mm. long to the end of its pseudocaudal, 

 about 47 mm. to anus, was taken near the type-locality, at station 

 5326 ; depth, 230 fathoms ; bottom temperature, 55.4° F. 



This species is the only one of the C. notatus group known from 

 off northern Luzon, and was not taken off southern Luzon, where 

 C. velifer and macrolepis were dredged in abundance. 



Fin-rays — first dorsal, II, 8; pectorals, 17 — 17 (17 — 16 in para- 

 type) ; ventrals, 7 — 7. 



In its form this species is somewhat more slender than usual, its 

 greatest depth being contained 1.95 times in the head (1.88 times in 

 the paratype) ; width of body across pectoral bases, 2.75 (2.6) times; 

 at a point twice the length of the head behind the rostral tip the 

 width of the body is just one-third of the depth. The dorsal contour 

 of the snout is somewhat concave ; that of the postrostral portion of 

 the head is nearly straight, not being elevated at the occiput. The 

 snout is long and diagnostically broad anteriorly, being especially 

 wide between the comparatively prominent anterolateral angles, 

 where the width is a little greater than either the orbital length or 

 the length anterior to the angle on either side. The preocular length 

 of the snout is contained 2.37 times in the head ; preoral length, 2.7 ; 

 width opposite front of orbits, 2.9 (2.8). The subopercle is produced 

 backward and downward, from its lower angle, as a pointed flap. 

 Length of orbit, 3.6 in head (3.7 in paratype) ; 1.1 (1.15) in postor- 

 bital; 1.5 (1.6) in snout. Least interorbital width, 1.7 (1.6) in postor- 

 bital; least suborbital width, 2.6 (2.7). The upper jaw, contained 



