18 TELEOSTEI. ACANTIIOPTEKYCII. 



edged with yellowish white; caudal canary-colour. After death 

 each scale seems to have a light semilunar band. 



Hab. Ceylon and Madras ; growing to 6 inches in length. 



749. (6.) Holacanthus xanthometopon. 



Ilolacanthus xanthometopon, Blecker, Batavia Nat. Tijdsch. iv, 

 p. 258, and Atl. Ich. ix, p. 64, Chcet. i. ix, fig. 2; Day, Fish. India, 

 p. 114 (see synon.). 



D. 14/17. P. 17. V. 1/5. A. 3/17. C. 17. L. r. 47. L. tr. 7/25. 



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

 diameter 4 in length of head, 14 diam. from end of snout and also 

 apart. A strong spine at angle of preopercle, not quite half so 

 long as the head. Fins soft dorsal and anal fins angular ; caudal 

 rounded. Colour blue, cheeks and opercles with numerous 

 golden spots externally edged with black ; some fine black lines on 

 the lips and chin ; a broad yellow iuterorbital band ; body violet, 

 each scale with a brilliant blue spot ; a yellow shoulder-spot. 

 Dorsal, caudal, and pectoral yellow, with a black spot at the base 

 of the last seven dorsal rays, caudal with a black edge ; ventral 

 and anal white with a blue edge. 



I fab. Andaman s and Malay Archipelago. There is a specimen, 

 7 1 inches in length, in the Calcutta Museum. 



6. Genus SCATOPHAGUS, Cuv. & Val. 



Syn. Cacodoxus, Cantor. 



Branchiostegals six ; pseudobranchiae. Body much compressed 

 and elevated, snout of moderate length. Preopercle spineless. 

 Palate edentulous. Two dorsals, united at their bases, the first 

 having ten or eleven spines, and a recumbent one in front directed 

 forwards ; the % soft dorsal covered with scales ; anal with four 

 spines. Scales very small. Air-bladder simple. Pyloric appendages 

 rather numerous. 



Geographical Distribution. Indian Ocean. 



750. (1.) Scatophagus argus. (Fig. 6.) 

 Chsetodon argus. Block, Ausl. Fisch. iii. p. 80. 



Scatophagus argus, Day, Fish. India, p. 114, pi. xxix. fiX 3 (see 

 synon.). 



Vddd, Maratlii ; Qu-ee, Sind. ; Chitsillo and Eesputti, Tel. ; Sipili, Tarn. ; 

 Autchar-c/iar, Mai.; Nga-pa-thoony, Arrac. ; Bceshatara, Chitta" Po- 

 ra-dah, Andara. ; Deivikorahyah, Cingalese. 



I). 10 | 1/16-17. P. 20. A. 4/14-16. C. 16. Ca3c. pyl.18 (20). 



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



diameter 3| in length of head, 1 diam. from end of snout, and 1=1 



apart. Fim each dorsal spine thicker on alternate sides~ 



