FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 261 



Squalus megalops Waite, Rec. Australian Mus., vol. 4, p. 33, pi. 4, fig. 2, 1901 

 (fetus) ; Mem. New South Wales Nat. Club, No. 2, p. 8, 1904.— Regan, Ann. 

 Mag. Nat. Hist, ser. 8, vol. 2, p. 47, 1908 (South Australia; Tasmania). — 

 McCtJixocH, Zool. Res. Endeavour, vol. 1, p. 9, 1911 (off Babel and Flin- 

 ders Island in Bass Strait) ; Fishes of New South Wales, ed. 2, p. 9, pi. 2, 

 tig. 25a, 1927.— Philjjpps, Nev.' Zealand Journ. Sci. Techn., vol. 10, p. 223, 

 1928 (waters north). — Whitley, Mem. Queensland Mus., vol. 10, pt. 4, 

 p. 1&4, pi. 27, fig. c, 1934 (Victoria), p. 199 (reference). 



Squalus acutipinnis Regan, Ann. Natal Gov. Mus., vol. 1, p. 248, pi. 37, 1908 

 (type locality: Table Bay, Cape of Good Hope, Natal, Mauritius); Ann. 

 Mag. Nat. Hist., ser. 8, vol. 2, p. 47, 1908 (type. South Africa; Mauritius). — 

 Clark, Rep. Sci. Res. Scotia, Scot. Nat. Antarct. Bxped., vol. 4, p. 395, 1915 

 (Houtjes Bay and off Salamander Point; entrance to Saldanha Bay). — 

 GiDCHRiST and Thompson, Ann. Durban Mus., vol. 1, p. 284, 1916 ( refer- 

 ences). -Norman, Discovery Rep., vol. 12, p. 37, 1935 (lat. 34° S., long. 17° 

 58' E., in 173-210 m. ; lat. 33° 48' S., long., 17° 30' E., in 329 m.) 



Squalus philippinus (not Shaw) Smith and Radclitfe, Proc. U. S. Nat. Mus., vol. 

 41, p. 677, fig. 1, pi. 51, 1912 (type locality: lat. 13° 45' 15" N., long. 120° 46' 

 30" E., off Sombrero Island, west coast Luzon, in 236 fathoms). 



Squalus trevirostris Tanaka, Fishes of Japan, vol. 26, p. 464, pi. 129, figs. 

 362-363, pi. 130, fig. 364, 1917 (type locality: Tokyo market, probably 

 Shimonoseki). — Mori, Journ. Pan Pacific Res. Inst., vol. 3, p. 3, 1928 (Fusan, 

 Korea). — Fang and Wang, Contr. Biol. Lab. Sci. Soc. China, vol. 8, p. 250, 

 fig. 16, 1932 (Chefoo). 



Squalus niontaWnii Whitley, Australian Zool., vol. 6, p. 310, 1931 (on Squalus 

 philippinus Smith and Radcliffe, not Shaw, 1804). 



Depth 57s to 6% to subcaudal origin; head 3% to 4%, width IV2 

 to 1%. Snout 3l^ to 314 in head; orbit 3 to 314, subequal with 

 snout, 11^ to 1% in interorbital ; mouth width 21/^ to 2% in head, 

 slightly arched, with deep groove at each angle long as upper labial 

 fold, lower much shorter; teeth subequal in jaws, directed laterally, 

 with inner edges forming cutting edges; nostrils nearly midway to 

 last third in snout, front valve distinctly bilobed, internarial 21/5 to 

 2% in preoral length, which 1% to 2 in head. Gill openings little 

 less than orbit, last little closer, before pectoral. Spiracle rather 

 small, less than pupil, close behind eye superiorly. 



Scales minute, tridentate, with median denticle longest, laterals 

 half as long, all on flat base. 



First dorsal origin close behind pectoral base, fin length ll^ in 

 head; second dorsal origin well behind depressed ventral tips, fin 

 length !■% in head; caudal 3 to 3% in rest of body, front subcaudal 

 edge 2 in caudal length ; least depth of caudal peduncle 7y^ to 7% in 

 head; pectoral I14 to 1%, width ll^ its length which extends % in 

 first dorsal base; ventral length II/2 to 1% in head. 



Above dark grayish, below paler. Dorsals blackish terminally, 

 paler basally. Caudal blackish medianlj-, lobes pale yellowish gray. 



South Africa, Natal, Mauritius, Philippines, Japan, Korea, New 



