FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 43 



space between outer edges of nasal flaps ; nasal flaps without cirri, not 

 confluent with upper lip, separated by interspace equal twice length 

 hind edge of either flap. Hind gill openings smaller and closer to- 

 gether than anterior. 



First dorsal begins above end of ventral base, front angle rounded, 

 hind angle rectangular, base % interdorsal; second dorsal equals or 

 larger than first, begins above basal end of anal; anal base 1% in 

 first dorsal base, li/^ in second dorsal base, % space from subcaudal ; 

 pectoral rounded, reaches nearly % to ventral origin ; ventrals in male 

 joined on basal third their hind edges. 



Upper parts covered with numerous small round dark spots, also 

 few white spots; 2 faint brown bands between gill slits, 1 below 

 pectoral bases, 2 across body between pectorals and first dorsal, 1 be- 

 fore and 1 at first dorsal base, 2 between first and second dorsals. 

 Length, 320 mm. (Regan; Barnard.) 



South Africa, Natal. 



Subgenus Halaelurus Gill 



Labial folds moderate or short, lower not extending halfway to 

 symphysis of lower jaw. 



HALAELURUS ALCOCKII Garman 



Halaelurus alcockii Garman, Mem. Mus. Comp. Zool., vol. 36, p. 87, 1913 (on 



Alcock). 

 Scyllium canescens (not Giinther) Alcock, Journ. Asiatic Soc. Bengal, vol. 65, 



p. 310, 1896 (type locality: Arabian Sea, in 620 to 690 fathoms) ; Cat. Deep 



Sea Fishes Indian Mns., p. 16, 1899 (brief comparative description). 

 Halaelurus canescens Fowler, Froc. 4th (1929) Pacific Scl. Congr., Java, p. 485, 



1930 (part). 



Snout rather long; eye rather small; labial folds at mouth angles 

 rather large; teeth tricuspid, cusps subequal. Body covered with 

 simple, stiff prickles. Second dorsal slightly larger than first; anal 

 base moderate. Blackish with hoary gray surface. Some fins tipped 

 white behind. Single small example. (Alcock.) 



Arabian Sea. From the above imperfect account, originally com- 

 pared with Halaelwras hispidus^ Garman proposed the name Halae- 

 lurus cdcochii. 



HALAELURUS BIVIUS (Muller and Henle) 



Scyllium tivirim (Andrew Smith) MihXEB and Henle, Syst. Beschr. Plagisto- 

 men, p. 8, 1841 (type locality: Cape of Good Hope). — Andrew Smith, Froc. 

 Zool. Soc. London, 1837, p. 85 (name only). — Dum^ril, Hist. Nat. Elasmobr., 

 vol. 1, p. 321, 1865 (South Africa ?; Chile).— Gunther, Cat. Fishes British 

 Mus., vol. 8, p. 405, 1870 (type). 



Scyliorhinus bivius Regan, Ann. Mag. Nat. Hist., ser. 8, vol. 1, p. 461, 1908 (type: 

 Chile, Patagonia). 



ScylUorhinus Mvius Barnard, Ann. South African Mus., vol. 21, pi. 1, p. 44, 1925 

 (compiled). 



