FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 55 



median cusp largest; nostrils long as eye, slightly less than inter- 

 narial, which 2i/4 in mouth width or 2% in preoral length which 1% 

 in head; interorbital 3, broad, little convex. Gill openings small, 

 subequal, last little shorter than fourth, last 2 above pectoral base. 

 Spiracle close behind eye. 



Scales minute, tridentate, and tricarinate, median point longest. 



First dorsal base over front of anal, origin little nearer caudal tip 

 than snout tip, fin length 2% in head ; second dorsal origin over last 

 % in ventral base, fin length 2% in head; anal 1%, height about 

 1/3 its length ; caudal 214 in rest of body, subcaudal height 4% in its 

 length ; pectoral I14 in head, width 1% its length, which reaches 1% 

 to ventrals; ventral 1% in head. 



Uniform brown. Inside mouth and gill openings blackish. 



U.S.N.M. No. 93135. D. 5587. Sipadan Island (W.), S. 12° E., 3.8 miles (lat. 

 4° 10' 35" N., long. 118° 37' 12" E.), vicinity Sibuko Bay, Borneo. Alba- 

 tross collection No. 10287. Length, 267 mm. Type. 



.yC^ 



r 



FiGDRE 4. — Pentanchus lierklotsi Fowler: Type (U.S.N.M. No. 93134). 



Differs from Scyliorhinus inacrortiynchus Tanaka in the eye with 

 its front edge nearer the pectoral origin than the snout tip, base of 

 first dorsal entirely behind ventral, second dorsal greatly larger than 

 first and caudal little over % total length. It differs from Scylior- 

 hinus pJ-atyrhynchus Tanaka in that the front edge of the eye is 

 little nearer pectoral origin than snout tip and second dorsal base 

 much larger than first dorsal base. 



PENTANCHUS HERKLOTSI Fowler 



Figure 4 



Pentanchus herklotsi Fowler, Proc. Acad. Nat. Sci. Pliiladelphia, vol. 85, p. 238, 

 fig. 3, 1934 (type locality: Station D. 5424. Jolo Sea). — Roxas and Martin, 

 Dept. Agr. Comm. Manila Tech. Bull. 6, p. 12, 1937 (reference). 



Depth 6% to subcaudal origin ; head 3%, width 12^. Snout 1% in 

 head; eye 5%, 3% in snout, 2i/4 in interorbital; dentary width 1% 

 in head, with long labial folds along each mouth angle; teeth in 38 

 rows above, 36 below, each tooth large erect slender pointed median 

 cusp, above medially with smaller basal cusp each side and toward 



156861—41 5 



