FISHES OF THE PHILIPPINE ISLANDS AND ADJACENT SEAS 475 



U.S.N.M. No. 71907. Okinawa, Riu Kin. Alhatross collection. Length, 1,330 mm. 

 Spots all small and of scattered appearance, inconspicuous, not extending 

 on head or nape and anterior rows just before middle of disk tending to 

 form broken horizontal pale lines. 



AETOBATUS OCELLATUS (Kohl) 



MylioMtis oceUatus Kuhl, Algemein Konst Letterbode, p. — , 1823 (type, lo- 

 cality: Java).— Van Hasselt, Bull. Sci. Nat. F6russac, vol. 2, p. 90, 1824 

 (Java). 



Aetobatus ocellattis Gaeman, Mem. Mus. Comp. Zool., vol. 36, p. 442, 1913 

 (Indian Ocean). 



Depth 5% in disk length; head 3; disk length 2% in its width, 

 314 in tail. Snout 2% in head, forms broadly obtuse depressed lobe 

 below and at low level in front; eye 9%, 5 in snout, 6l^ in inter- 

 orbital; dentary width 3% iii head; teeth uniserial, lower pavement 

 projects slightly ; lips papillose ; nostrils each deep simple slit, inter- 

 narial 1% in dentary width ; interorbital 1% in head, broad, slightly 

 convex. Gill openings subequal or last smallest, equidistant. Eye 

 1% in spiracle, which wide and deep. 



Skin smooth. No caudal spine. 



Dorsal length 4 in head; no anal; tail very long, whiplike; pec- 

 toral forms very wide disk, front edges nearly straight, hind edge 

 slightly concave, acute at outer angle ; ventral ly^ in head, expanded 

 terminally and convex behind. 



Back brown, marked with many scattered, close-set, whitish 

 spots, becoming smaller about disk edges. Spots also extend well 

 over head, dorsal, ventral and base of tail. Tail largely dusky. 

 Under surfaces dusky. 



East Indies, Indian Ocean. I identify the specimen described 

 above with this species as all its white spots appear to have for- 

 merly been more brilliant, contrasted and apparently ocellated. 



U.S.N.M. No. 39987. South Sea Islands. Australian Museum. Length, 1,100 

 mm. 



Genus RHINOPTERA Cuvier 



Rhinoptera (Kuhl) Cuviee, R^gne animal, ed. 2, vol. 2, p. 401, 1829. (Type, 



Myliobatis margmata Geoffroy Saint-Hilaire, designated by Fowler, Geol. 



Surv. New Jersey BuU. 4, p. 101, 1911.) 

 Zygohatis Agassiz, Poissons fossiles, vol. 3, p. 79, 1838. (Type, MVliohatis jus- 



sieiii Cuvier, monotypic.) 

 Zygobates Agassiz, loc. cit., vol. 3. p. 328, 1843. (Type, Myliobatis jussieui 



Cuvier.) 

 Trikeras Haeless, Abh. Nat. Phys. Kl., vol. 5, p. 841, 1850. (Atypic.) (Type, 



Myliobatis marginata Geoffroy Saint-Hilaire.) 

 Mylorhina Gill, Ann. Lyceum Nat. Hist. New York, p. 139, 1865. (Type, 



Rhinoptera lalandii Miiller and Henle, orthotypic). {Mylorhinus Bois- 



duval, 1835, in Coleoptera not involved.) 



