FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 461 



lateral 3, fifth median lower tooth 2% times wide as long; inter- 

 narial frenum smooth, hind edge 'of flap truncate and coarsely 

 fringed, tips of fringes lobate and front nasal angle nearer middle 

 of flap than snout tip; interorbital fontanel deepest and widest 

 anteriorly, greatest width 2.I/3 its length; interocular 3 in disk 

 length. Spiracle wide, slightly oblique, extends outward forward to 

 hind lower angle of orbit, inner opening wider than eye diameter. 

 Gill openings narrow, subequal. 



Body smooth. 



Dorsal fin begins behind ventral tips, its vertical height II/3 its 

 length which equals eye; tail long (broken), slender, without folds, 

 spine well developed; pectorals form disk length 1% its width, 

 which slightly behind front edge of abdominal region, front and 

 hind borders gently undulous, outer angle obtusely pointed and bent 

 conspicuously backward; outer ventral border feebly rounded, base 

 l%o its length. 



Upper surface and tail behind spine purple, pectoral fins shading 

 outwards to olive brown. Lower surfaces cream color. Disk length, 

 152 mm., width, 280 mm. (Ogilby.) 



Queensland. 



HOLORHINUS AUSTRALIS (Macleay) 



Myliohatis australis Macleay, Proc. Linn. Soc. New South Wales, vol. 6, p. 

 380, 1881 (type locality: Port Jackson). — McCoy, Prodromus Zool. Vic- 

 toria, pi. 63, 1882.— Ogilby, Cat. Fishes Australian Mus., pt. 1, p. 22, 

 1888 (Port Jackson and Parramatta River). — Lucas, Proc. Roy. Soc. Vic- 

 toria, new ser., vol. 2, p. 46, 1890 (reference). — Waite, Mem. Australian 

 Mus., vol. 4, p. 47, 1899 (New South Wales) ; Mem. New South Wales Nat. 

 Club, No. 2, p. 1, 1904.— Stead, Fishes of Australia, p. 233, 1908.— McCul- 

 LocH and Whitley, Mem. Queensland Mus., vol. 8, pt. 2, p. 130, 1925 

 (reference). — McCulloch, Fishes of New South Wales, ed. 2, p. 13, pi. 

 3, fig. 41a, 1927. 



Aetobatus australis McCttlloch, Zool. Res. Endeavour, vol. 1, p. 15, 1911 

 (Shoalhaven Bight, New South Wales, in 15-45 fathoms) ; Biol. Res. En- 

 deavour, vol. 2, pt. 3, p. 86, fig. 3, 1914 (dentition) (New South Wales). 



Myliobatus aquila (not Linnaeus) GiJNTHEB, Cat. Fishes British Mus., vol. 8, 

 p. 489, 1870 (Sydney). — Castelnau, Proc. Zool. Acclimat. Soc. Victoria, 

 vol. 1, p. 225, 1872 (Hobson's Bay). — Hector, Colonial Mus. Governm. Surv. 

 Dept. (Fishes of New Zealand), p. 86, 1872 (on Banks). — Macleay, Proc. 

 Linn. Soc. New South Wales, vol. 6, p. 380, 1881 (Port Jackson; on Gun- 

 ther). 



Mylioiatis nieuholii (not Schneider) Casteln-^tj, Proc. Zool. Acclimat. Soc. 

 Victoria, vol. 1, p. 226, 1872 (Melbourne market). 



Myliohatis nienhofii Macleay, Proc. Linn. Soc. New South Wales, vol. 5, 

 p. 316, 1880 (Port Phillip, on Castehiau) ; vol. 6, p. 380, 1881 (error). 



Myliohatis tcnuicaudatus (not Hector) Garman, Mem. Mus. Comp. Zool., vol. 36, 

 p. 433, 1913 (Australia; not New Zealand).— Fowler, Proc. 4th (1929) 

 Pacific Sci. Congr., Java, p. 507, 1930 (reference; part). 



De^Dth 5 to ^Ys in disk length measured to hind pectoral edge; 

 head 32/5 to 33/5; disk length 1% to 1% in its width, disk length 



