262 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



South Wales, Victoria, Tasmania, South Australia, New Zealand. 

 Also in the Eastern Pacific at Chile, 



U.S.N.M. No. 70256. Station 5111, lat. 13°45'15" N., long. 120°46'30" E., off 

 Sombrero Island, West coast Luzon, in 236 fathoms. AlMtross collection. 

 Length, 325 mm. Type of Squalus philippinus. 



Subgenus Cirrhigaleus Tanaka 



SQUALUS BARBIFER (Tanaka) 



Cirrhigaleus harhifer Tanaka, Fishes of Japan, vol. 9, p. 151, pi. 41, figs. 156- 



162, 1912 (type locality: Tokyo market, Japan). 

 Squalus {Cirrhigaleus) hai-tifer Gabman, Mem. Mus. Comp. Zool., vol. 36, p. 457, 



1913 (Japan). 

 Phaenopogon hariuUfer Hebre, Copeia, No. 3, p. 123, fig. 1, 1935 (type locality: 



Japan). 



Depth 5% to subcaudal origin; head SVs, width V/^. Snout 31/5 

 in head; orbit 4^4, 1% in snout, V/g in interorbital ; mouth width 1% 

 in head, little arched, upper labial fold half way to symphysis of 

 upper jaw or % groove extending back from each mouth angle; 

 teeth in 26 rows in each jaw, subequal, directed obliquely; nostrils 

 nearer eye than snout tip, about midway in preoral length, each 

 with barbel long as snout in profile ; internarial 1% in preoral length 

 which 2 in head; interorbital 214? low. Gill openings equidistant, 

 gradually large to last which % of orbit, before pectoral base. 

 Spiracle above and close behind eye, about % of orbit. 



Scales small, with prominent median keel and less elevated lateral 

 ridges; little larger on nuchal region, on under surfaces flat, heart- 

 shaped, almost without ridges. 



First dorsal origin opposite hind inner pectoral angle, fin length 

 1% in head ; second dorsal origin behind hind basal ventral edge, fin 

 length 11/4 in head ; caudal 3% in rest of body, front subcaudal edge 

 2 in caudal length; least depth of caudal peduncle 5i/^ in head; 

 pectoral I14, width 1% its length; ventral length I14 in head, clasper 

 extending but little behind, short, thick. 



Color not given. Length, 855 mm. (Tanaka.) 



Genus OXYNOTUS Rafinesque 



Oxynotus Rafinesque, Indice d'ittiologia siciliana, pp. 45, 60, 1810. (Type, Squalus 



centrina Linnaeus, monotypic. ) 

 Centrina Cuvier, Regne animal, vol. 2, p. 130, 1817. (Type, Squalus centrina 



Linnaeus, tautotypic. ) 



Body stout and subtriangular medianly, slender and compressed 

 in tail. Head small, depressed, flattened somewhat at crown. Snout 

 obtuse, wide. Eye without nictitating folds. Mouth transverse, 

 with labial folds and grooves, also lip. Teeth unlike in 2 jaws; upper 

 slender, in narrow group; lower compressed, triangular, serrated, 

 functional in single series, except perhaps when about to be shed. 



