50 BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



slightly greater than head to last gill opening ; pectoral 1% in head, 

 width 1% its length ; ventral length 1% in head ; least depth of caudal 

 peduncle 3%. 



Light brown generally. Back and upper surface profusely marked 

 with rather large chestnut brown spots and over top of back where 

 bounding about 7 dark saddles or blotches, arranged so as nearly sub- 

 equal in size with pale interspaces. All fins with some dark or chest- 

 nut brown spots. 



Apparently allied with Halaelurus analis (Ogilby) but differing in 

 coloration, the dark spots large and prominent or in contrast and 

 these defining about 7 rather dark bands transversely or saddles on the 

 back. 



East Indies. 

 U.S.N.M. No. 43749'. East Indies. Length, 240 mm. Type. 

 HALAELURUS VINCENTI (Zietz) 



Scyllius Vincent i Zietz, Trans. Roy. Soc. South Australia, vol. 32, p. 287, 1908 

 (type locality: Investigator Strait and Kangaroo Island, South Australia). 



Scyliorhinus vincenti McCulloch, Zool. Res. Endeavour, vol. 1, pt. 1, p. 4, pi. 2, 

 fig. 3, fig. 1, 1911 (mouth) (Zietz example; off Murray River mouth in 20 

 fathoms).— Fowler, Proc. 4th (1929) Pacific Sci. Congr., Java, p. 484, 1930 

 (reference). — Whitley, Mem. Queensland Mus., vol. 10, pt. 4, p. 198, 1934 

 (reference). 



ScylUorliinus vincenti Waite, Rec. South Australian Mus., vol. 2, no. 1, p. 17, 

 1921. 



Depth 8 to subcaudal origin; head 51/^. Snout 2% in head, 

 rounded, blunt in profile; eye 4^, 1% in snout, inferior fold well 

 marked; preoral 2^5 in head; mouth Avidth about 1%, with distinct 

 fold around mouth angle, lower fold longer than upper but less than 

 halfway to symphysis ; teeth tricuspid, median cusp longer than lat- 

 erals; nasal valves produced as lobes outward and backward, hind 

 borders emarginate, without cirrus, interspace slightly more than 1 

 lobe ; interorbital greater than snout length, but little elevated. Gill 

 openings graduated smaller to last, which half wide as first and above 

 pectoral base. Spiracle large, oval, close behind eye. 



Scales quadrilateral and keeled on head, triangular and acutely 

 pointed dorsally, tricuspid on sides. 



First dorsal inserted slightly before middle in total length or be- 

 hind hind basal ventral end, front edge 1% in head; second dorsal 

 origin over last fourth of anal base, front edge 1% in head; anal 

 length IVio; pectoral reaches 1% to ventral, width ly^ its length, 

 which 11/^ in head; ventral length equals head measured to second 

 gill opening ; caudal 4^^ in rest of body, front subcaudal edge 1% in 

 head, notch at last fourth. 



Chocolate-brown above, with ill-defined darker cross bars. Indi- 

 cations of dark blotches on sides, hinder half of head, body, tail, and 



