88 THE PLAGIOSTOMIA. 



Halaelurus labiosus. 



Squalus maculatus Schneider, 1801, Bloch Ichth., p. 130 (not Squalus maculatus Bonn., 1788). 



Scyllium maculatum Gunth., 1870, Cat. fishes Brit, mus., 8, p. 401. 



Catulus labiosus Waite, 1905, Rec. Austr. mus., 6, p. 57, f. 23. 



Scyliorhinus maculatus Regan, 1908, Ann. & mag. nat. hist., ser. 8, 1, p. 462. 



Body shorter than the caudal region. Head short, depressed; snout short, 

 broadly rounded across the end. Anterior nasal valves short, widely sepa- 

 rated on the internarial space, with rounded outer angles, without cirri. Mouth 

 wide, width nearly twice the length of the snout; labial folds long, around the 

 angles of the mouth, reaching more than half the length of each jaw, the ante- 

 rior extending nearly to the nostrils. Teeth tricuspid, median cusp largest, 

 lower teeth larger. Gill openings narrow. First dorsal origin above the hind 

 edge of the vent, that is, above the hinder portions of the bases of the ventrals. 

 Ventrals obliquely truncated. Hind end of the base of the anal below the 

 middle of the second dorsal. Base of anal little if any longer than that of the 

 dorsal, shorter than the distance from the subcaudal. 



Dark brown, with scattered spots of black, smaller than the eye, on the 

 hinder part of the head and body, from the pectorals, and on the dorsals, the 

 ventrals, the anal, and the caudal. 



Reaches a length of more than two feet. 



Australia. 



Parmaturus. 



Parmaturus Garman, 1906, Bull. M. C. Z., 46, p. 203. 



Body rounded, nearly as long as the tail. Snout short, thick, very vascular. 

 Nostrils large, without a nasoral groove, with two valves; anterior valves short, 

 widely separated across the internarial space, without a cirrus; posterior valves 

 short. Dorsals small; first dorsal above the ventrals, second above the anal. 

 Upper edge of caudal armed with modified scales somewhat as in species of the 

 genus Pristiurus, but otherwise the general appearance approaches Catulus 

 rather more. 



Eastern Pacific to Japan. 



Anal fin larger than the ventrals 



inner angles of the dorsals blunt, rounded . . pilosus (page 89) 



Anal fin smaller than the ventrals 



inner angles of the dorsals sharp .... xaniurus (page 90) 



