1. ACANTHURUS. 343 



whitish dots and fine undulated lines ; sometimes a short whitish 

 longitudinal band above the pectoral. 



From Mauritius to the western parts of Polynesia, jCoast of 

 Cuba. 



a, h. Fine specimens. Ceram. 



c. Adult : stuffed. Sand'sach Islands. 



d. Half-grown : stuffed. Aneiteum. From Mr. Macgillivray's Col- 



lection. 



e. f, g-h. Adult and half-grown. 



It is a very remarkable fact, that, according to Guichenot, this 

 species is found also in the Caribbean Sea. 



37. Acanthurus goramensis. 

 Blecker, Goram, p. 308. 



D.f,- A. I,. 

 The height of the body is two-thirds of the total length (the caudal 

 fin not included). Snout very produced ; six lobatc incisors on each 

 side of the upper jaw. Scales minute, rough. Dorsal and anal fins 

 elevated. Brownish-violet: head and thorax lighter, with minute 

 blue dots ; body with about sixteen blue transverse streaks, and with 

 a greyish band, descending obliquely from the suprascapula towards 

 the side ; vertical fins brownish-\'iolct. {Bl.) 

 Sea of Goram. 



Closely allied to A. rhomheiis. 



38. Acanthurus xanthurus. 

 Blyth in KeJaarVs Prodr. Fmm. Ceylan. Append, p. 50. 



^-i' A. If. 



Wholly black, with golden-yellow tail. {Blyth.) 

 Coast of Ceylon. 



39. Acanthurus gemmatus. 

 Ctiv. 4- Val. X. p. 255. 



The height of the body is contained twice and a fifth in the total 

 length (caudal fin included). The eye is scarcely above the middle 

 of the height of the head. Caudal truncated ; dorsal and anal spines 

 rather strong, the anterior very short. Dorsal and anal fins mode- 

 rately elevated, half as high as the body. Scales scarcely perceptible. 

 Seven lobate teeth on each side of the upper jaw. Dark browTi, 

 covered all over with white spots, which are disposed in longitudinal 

 series on the body; caudal immaculate. {Val.) 



Mauritius. 



