AETOPLATEA ZONURA. 411 



Aetoplatea. 



Aetoplatea Mullek & Henle, 1841, Plagios., p. 175. 



A small dorsal fin in front of the spine on the base of the tail; otherwise as 

 in Pteroplatea. 



A tentacle behind the spiracle 



tail less than half as long as the body 



keeled above and below .... tentaculata (page 411) 



No tentacle behind the spiracles 



tail about as long as the body .... zonura (page 411) 



Aetoplatea tentaculata. 



Aetoplatea tentaculata Muller & Henle, 1841, Plagios., p. 175; Dumeril, 1865, Elasm., p. 630. 

 Pteroplatea tentaculata Gunth., 1870, Cat. fishes Brit, mus., 8, p. 488; Annandale, 1909, Mem. Ind. 



mus., 2, p. 40; pi. 4, f. 4. 

 Pteroplatea australis Ramsay & Ogilby, 1885, Proc. Linn. soc. N. S. W., 10, p. 575; 1888, ibid., ser. 2, 



2, p. 1024. 



Shapes similar to those of Pteroplatea poecilura or P. micrura. Disk about 

 twice as wide as long, anterior edges of pectorals waved, posterior nearly straight. 

 A tentacle behind the spiracle. No papillae in the mouth. Teeth acute. Tail 

 nearly half as long as the body, with a fold above and another below. Dorsal 

 small, rounded. Skin smooth, A serrated caudal spine. 



Greenish brown with scattered spots of lighter on the back; tail brown. 



Red Sea; Indian Ocean; Malabar. 



Aetoplatea zonura. 



Aetoplatea zonurus Bleeker, 1852, Verh. Bat. gen., 24, Plagios., p. 79; Dum^iril, 1865, Elasm., p. 631. 

 Pteroplatea zonura GtJNTH., 1870, Cat. fishes Brit, mus., 8, p. 488; Annandale, 1909, Mem. Ind. mua., 

 2, p. 40, pi. 4, f. 3. 



Disk twice as wide as long. Front outhne of pectoral very little waved, 

 outer angle sHght, posterior margin and angle rounded. A small prominence 

 at end of snout, distance from the eyes less than that between the spiracles on 

 a specimen eleven inches in width. No tentacle behind the spiracle. Tail 

 from the abdominal pores less than half the length of the body; a low keel 

 above and another below; spine not yet apparent on the individual described; 

 dorsal fin small, rounded. 



Greenish brown with maculae and puncticulations of black; lower surfaces 

 white; tail brown with white rings, 8-10, behind the dorsal. 



Singapore; Batavia. 



