378 TELEOSTEI. ACANTHOPTERYGII. 



1220. (4.) Amphiprion bifasciatus. 



Anthias bifasciatus, Bloch, Ich. t. 316, fig;. 2. 



Amphiprion bifasciatus, Day, Fish. India, p. 379, Suppl. p. 800 (see 

 synon.). 



D. 11/13-15. P. 15. A. 2/12-13. C. 17. L. 1. 50-55. L. tr. 6/19. 



Length of head 4 to 4|, height of body 2 to 2| in the total 

 length. Eyes diameter 4 in length of head, 1 diam. from end of 

 snout, 1 3 apart. Lateral line tubes cease opposite middle of soft 

 dorsal. Colour brownish black, with two milk-white cross bands ; 

 anterior from nape over opercles ; second from last three spines 

 and first few dorsal rays down to middle of body, aud backward 

 to summit of all dorsal rays ; caudal black, upper and lower edge 

 white. 



Hob. Andamans to the Malay Archipelago and beyond. 



1221. (5.) Amphiprion acallopistus. 



Amphiprion akallopisos, Sleeker, Batavia Nat. Tijdsch. iv, p. 281. 

 Amphiprion akallopisus, Day, Fish. India, p. 380 (see synon.). 



D. 9-10/20-18. P. 19. A. 2/13-14. C. 15. L.I. 60. L.tr.6/24. 



Length of head 3| to 4|, height of body 2| to 3 in the total 

 length. Eyes diameter 3| in length of head, 1 diam. from end 

 of snout and also apart. Fins dorsal spines short, increasing 

 in length to fourth, a notch between spinous and soft portions. 

 Caudal rounded. Colour orange, brightest on head, chest, and 

 base of caudal fin ; a blue band from between orbits to dorsal fin, 

 there dividing into two, half going along either side of base of fin. 

 Scales on body with a light spot. 



Hub. Andamans to Malay Archipelago. 



2. Genus PEEMNAS, Cuv. 



Branchiostegals five or six. All the opercles serrated ; a long 

 strong spine at posterior edge of preorbital. Teeth in a single 

 row, conical and small. Dorsal with 9 or 10, anal with 2 spines. 

 Scales of moderate size. The lateral line ceases below the end of 

 the dorsal fin. An air-bladder. Pyloric appendages three. 



Geographical Distribution. Indian Ocean. 



1222. (1.) Premnas biaculeatus. (Fig. 126.) 

 Chsetodon biaculeatus, Bloch, Ich. t. 219, fig. 2. 

 Premnas biaculeatus, Day, Fish. India, p. 380, pi. Ixxx. fig. 5 (see 

 synon.). 



B.v. D.9-10/16-20. A.2/13-15. L.l.60-70. L.tr.14/35. Vert.12/14. 

 Length of head 4, height of body 2| in the total length. Eyes 

 diameter a little above 3| to 4 in length of head, 1 to 1^ diam. 

 trom end of snout, and 1 apart. Preorbital with two strong 

 spines. Fins fourth dorsal spine and second anal longest. 



