1849.] Catalogue of Malayan Fishes. 1401 



pointed with a tetragonal base, but slightly projecting beyond the mar- 

 gin of the jaw. A membranous valve in both jaws. The solitary 

 dorsal and the caudal rounded. Eyes close to the spiracles. The 

 latter smooth. 



Astrape dipterygia, (Bloch-Schneider.) 



Raja dipterygia, Bloch-Schneider, 359. 



Torpedo dipterygia, Var. Olfers. Torp. 25. 



Narcine dipterygia, Henle : Narcine : Taf. III. Fig. 2. 



Astrape dipterygia, Muller und Henle: 131. (Young.) 



Pari kubbas of the Malays. 



Above dark greenish olive, with a large round whitish spot on each 

 side at the posterior margin of the disk ; anterior half of the ventrals 

 whitish ; a large round whitish spot on each side above the termination 

 of the ventrals, a similar one on each side of the root of the caudal ; 

 dorsal and caudal blackish brown or black ; beneath whitish. Iris 

 golden ; pupil circular black. 



In the very young (upwards of 4f inch in length) the ventrals are 

 of a uniform colour like the ground-colour. 



Habit. — Sea of Pinang, Malayan Peninsula, Lancavy Islands, 



Singapore. 

 Tranquebar. 



Total length : 8 inch. 



The disk is rounded, and as broad as long. It covers the anterior 

 margin of the ventrals. The latter are tetragonal, with acute angles 

 in the young, but later they become obtuse. The male appendages are 

 strong and extend to opposite the termination of the dorsal. The 

 latter commences at the posterior third of the length of the fish. The 

 eyes are much smaller than the spiracles. The following dimensions 

 were taken from a male 6J inch in length. 



Length and breadth of the disk, 3 inch. 



From the snout to the mouth, Of 



From the mouth to the anus, 2f 



From the anus to the apex of the caudal, 3| 



Single individuals occur in the Straits of Malacca at all seasons. 



8 r 2 



