GLYPIIIDODONTLDjE. 381 



1 apart. Fitis third dorsal spine aud second anal longest. 

 Colour pearl-white, with three vertical black bands, the anterior 

 from first three dorsal spines through eye to under surface of lower 

 jaw ; the second from sixth to ninth dorsal spines to the ventral 

 fins, which are black ; the third from base of soft dorsal to anal ; 

 caudal dark, light posteriorly. 



Nab. Red Sea, eastern coast of Africa, seas of India to Polynesia, 

 &c.; numerous at the Andamans, Nicobars, and Burmah, but much 

 rarer in Western than in Eastern India. 



4. Genus POMACENTRUS (Lacepede), Cuvier. 



Syn. Pristotis, Riipp. ; Lcpidozyyus, Giinther ; Pseudopomacentrus, 

 Bleeker. 



Branchiostegals 4 or 5. Preopercle and usually infraorbital ring 

 serrated. Teeth small, compressed ; the crowns smooth or emar- 

 ginated. Dorsal with 12 or 13, anal with two spines. Scales 

 rather large. Lateral line ceases below the soft dorsal fin. Air- 

 bladder present. Pyloric appendages few. 



Geographical Distribution. Tropical seas of both hemispheres. 



Synopsis of Indian Species. 



A. L. tr. 3-4/ ( J-10|. 



a. Lips moderate. 



Olivaceous ; scales with blue spots, 3 to 



5 blue lines on forehead, caudal 



yellow 1. P. trilineatus, p. 381. 



Greenish yellow ; head-scales with blue 



spots, 3 black blotches on back de- 

 scending to sides 2. P. trimaculatus, p. 382. 



Yellowish, two black bands on upper 



part of each side. Fins yellow. ... 3. P. bifasciatus, p. 383. 

 Deep violet, ends of soft dorsal and 



caudal yellow 4. P. sindensis, p. 383. 



Brownish, blue lines on forehead, scales 



with blue dots, a black ocellus at 



base of soft dorsal 5. P. littoralis, p. 384. 



Olive, bluish spots on scales, 3 black 



spots on each tdde G. P. bankanensis, p. 384. 



Olive, a broad vertical yellowish band 



under last dorsal spines 7. P. prosopotania, p. 384. 



Greyish brown, bluish-white spots on 



scales, black ocellus at base of soft 



dorsal, no blue lines on forehead . . 8. P. lividus, p. 385. 



b. Lips thick, covered with papillae and re- 



flected 9- P labiatus, p. 385. 



B. L. tr. 5/11. Caudal lobes produced, 



pointed 10. P.jerdoni, p. 385. 



1226. (1.) Pomacentrus trilineatus. 



Pomacentrus trilineatus (Ehr.), Cuv. $ Val. H. N. Poiss. v, p. 428 ; 

 Day, Fish, India, p. 382, Suppl. p. 801 (see synon.). 



