19. urolopucs. 485 



19. UROLOPHUS. 



Uroloplius et Trygonoptera, Miill. Sf Ilenle. 



Tail of moderate length, with a distinct rayed terminal fin, armed 

 with a serrated spine, without or with a rudimentary dorsal fin. 

 Pectorala united in front. Mouth and teeth as )n Trygon. 



Australian and Caribhean seas. 



o. No doraal Jlu : Uroloplius. 



1. Urolophiis cruciatus. 



KaJM cruciala, Lacep. Ann. Mus. iv. pp. 201, 210, pi. oo. fig. 2. 



Uroloplius aurantiacus, Miill. c\ Jlcnlc, p. 173, taf. .%. 



— ■ — rphippiatus, Ilicliards. Vuy. JSreb. ^- Terr. Fish. p. 3'0, pi. 24. 



cruciatus, Dxnicril, JEldsnwbr. p. G20. 



ephippiatus. iJumeril, I. c. p. 027. 



Ui.sk rather broader than lonj;, the anterior marj^ins being straight, 

 and meeting at an obtuse angle; snout not projecting. Skin en- 

 tirely smooth. Tail shorter than the disk. Yellowish, uniform or 

 with one or three blackish longitudinal bands crossed by others of 

 the same colour. 



Australian seas. 



a. Type of U. ephipphdas. Port Arlliur. From the Haslar Col 

 lection. 



2. Urolophus armatus. 



Midi. 4' Henle, p. 174; Burner il, Elasmohr. p. 028. 



Disk rather broader than long ; snout rather projecting. Upper 

 parts with small spinclets ; a largo tubercle in the centre of the 

 scapulary region. Tail scarcely shorter than the disk. Brown, 

 with numerous black dots. 



New Ireland. 



3. Uroloplius torpedinus. 



Pastinaca marina, Sloanc, Jam. p. 277, pi. 240. fig. 1. 



Trygonobatus torpedinus, Do^mar. IcJith. dec. I. p. 0, pi. 1. 



Raja jamaicensis, Ciiv. li'eyne An. ; llancroft, Zuol. Juurn. v. p. 83 



(Itaja sloani). 

 Uroloplius torpedinus, Midi. S,- Ilenle, p. 173, pi. 55; Voeij, Mem. 



Cub. ii. p. 300 ; Dunicril, Ehismobr. p. 028. 



halleri, Cooper, Proc. Calif. Ac. Nut. Sc. iii. p. 95. 



Urotrygon mundus, Gill, Proc. Ac. Nat. Sc. Philnd. 1803, p. 173. 



Disk ovate, longer than broad. Upper parts Avith distant, minute 

 spinelets. Tail rather short' r than the disk in adult e.-iamplcs. All 

 the upper parts with numerous yellow, dark-edged ocelli ; sometimes 

 of a more uniform colour. 



West Indies, and Pacific coasts of Central America. 



(t, h. Adult and young. Jamaica. Purchased of Mr. Higgins. 

 r-/". Adult and half-irrown : skins. Jamaica. Purchased of ^Ir, 



Parnell. 

 f/, /). Adjilt. West 1 miles, 



