72 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



snout end, front nasal valve with long cylindrical cirrus and posterior 

 valve fold on side of nasoral groove; interorbital well convex. Last 

 2 gill openings together, above pectoral, others equidistant. Spiracle 

 minute, distant from hind eye edge one eye diameter. 



Scales small, rather smooth to touch, with low median keel, with 

 or without smaller lateral keels, larger scales intermixed with 

 smaller, hinder edges not crenulate. 



First dorsal origin above first % of ventral base, front fin edge 

 114 in head; front edge of second dorsal li/^; anal origin opposite 

 first third of second dorsal base, front edge 1^4 in head; pectoral 

 little longer than head to first gill opening, width 1% its length, 

 which reaches 1% to ventral; ventral length 1% in head; caudal 

 21/10 in rest of body, front subcaudal edge 1% in head, notch at last 

 sixth. 



Kusty brownish, with sprinkled appearance, from larger whiter 

 scales. Length, 788 mm. (Garman.) 



Mauritius. 



Genus CIRRHOSCYLLIUM Smith and Radcliffe 



Cirrhoscyllium Smith and Radcliffe, Proc. U. S. Nat. Mus., vol. 45, p. 568, 

 1913. (Type, Cirrhoscijllium expoUttim Smith and Radcliffe, ortliotypic.) 



Zev Whitley, Rec. Australian Mus., vol. 15, No. 5, p. 290, 1927. (Type, 

 Cirrhoscyllkim expolitum Smith and Radcliffe, virtually. Zev Whitley 

 proposed to replace Clrrlioscyllium Smith and Radcliffe. CirrhiscylUum 

 Ogilby, 1908, not involved.) 



Body very elongate, slightly compressed, abruptly elevated at 

 nape, thence tapering regularly to tail. Head wide, depressed. 

 Snout flat, tip obtusely rounded. Eye small, lateral, surrounded by 

 well developed naked fold, most evident below. Mouth wide, slightly 

 curved, anterior to eye; well developed fold at angle extending to 

 symphysis of lower jaw. Teeth conic, with strong lateral cusps in 

 both jaws. Nasal valves much convoluted. Pair of widely sep- 

 arated skin-covered, threadlike appendages on under side of throat. 

 Four front gill slits very narrow, fourth opening on margin of 

 anterior wall of fifth which very wide and above pectoral base. 

 Spiracles minute, below and slightly behind hind angle of eye. 

 Scales elongate, ovate, tricarinate. Dorsals small. Caudal long, sub- 

 caudal low. Pectoral short, broad. 



CIRRHOSCYLLIUM EXPOLITUM Smith and Radcliffe 



Cirrhoscyllium expolitum Smith and Radctliffe, Proc. U. S. Nat. Mus., vol. 45, 

 p. 568, fig. 1 (dermal denticles), fig. 2 (teeth), pi. 45, 1913 (type locality: 

 Lat. 21°33' N., long. 118''13' E., in 100 fathoms; China Sea between north- 

 ern Luzon and China). — Fowlek, Proc. 4th (1929) Pacific Sci. Congr., Java, 

 p. 487, 1930 (reference). 



Chiloscyllium expolitum Roxas and Maetin, Dept. Agr. Comm. Manila Tech. 

 Bull. 6, p. 11, 1937 (reference). 



