5. POMACENTRUS. 29 



29. Pomacentrus dorsalis. 

 GiU in Proc. Acad. Nut. Sc. Philad. 1859, p. 147. 

 D. ||. A. ^. L. lat. 25. 



15 15 



The upper profile of the head is straight. Praeorhital obtusely 

 denticulated. Brown, obscurely dotted with blue ; a large black 

 spot, edged anteriorly with bluish, on the posterior rays of the dorsal 

 fin. A blackish spot superiorly on the operculum and another at the 

 base of the pectoral ; caudal fin yeUow towards the base. The spot 

 on the dorsal fin becomes indistinct with age ; sometimes a blue 

 streak round the lower part of the orbit. 



Seas of Japan and China. 



a. China. Presented by Vice- Admiral Sir E. Belcher, C.B. 

 h. From the Haslar Collection. 



30. Pomacentrus chrysnrus. 



Chaetodon chrysurus, Broussonet. 

 Pomacentrus chrysurus, Cuv. 8f Val. v. p. 423. 



D. 15. A. f . L. lat. 26. L. transv. 3/10. 



15 15 ' 



The height of the body is contained twice and three-fourths in the 

 total length. Snout rather shorter than the eye, the diameter of which 

 is nearly one-third of the length of the head ; interorbital space 

 slightly convex, as broad as the orbit. Praeorhital naked, half as broad 

 as the orbit, with a shallow notch anteriorly and with a spinous tooth 

 posteriorly ; suborbital ring slightly serrated posteriorly ; scales on 

 the cheek in two series ; the lower praeopercular limb with another 

 series of very small scales ; prseoperculum strongly serrated. Teeth 

 narrow. The two last dorsal spines rather longer than the middle 

 ones, three-fifths as long as the head; the soft dorsal and anal rounded^; 

 caudal fin emarginate, its length being a little more than one-fifth 

 of the total. Brown : caudal yellow ; the other fins blackish ; some- 

 times a round black spot, edged anteriorly with bluish, near the base 

 of the six last dorsal rays ; an indistinct brown dot superiorly in the 

 axil of the pectoral. No spot at the origin of the lateral line. 



Amboyna. 



a. Fine specimen, thirty lines long. Purchased of Mr. Frank. 

 h. Three inches long. Presented by J. B. Jukes, Esq. 



31. Pomacentrus punctatus. 



?? Chaetodon lividus, Forst. Descr. Anim. ed. Licht. p. 227 ; Bl. Schn. 



p. 235. 

 Pomacentrus punctatus, Quoy Sf Gaim. Voy. Uran. Zool. p. 395. pi. 64. 



fig. 1; Rupp. Atl. Fische, p. 37; Cuv. ^ Val. v. p. 429. 



D-lS/'.lV.- C^c.pylor.3. 

 The height of the body is contained twice and two-thirds in the 

 total length. Prajorbital denticulated, nearly as broad as long ; 

 caudal emarginate. Brownish : head with irregular bluish dots, the 



