344 ACRONURID^. 



40. Acanthurus velifer. 



Acauthurus velifer, Bloch, ix. p. 106. taf. 427. fig. 1 ; Bl. Schu. p. 215 ; 



Lacdp. iv. pp. 547, 553 (not Val., Riipp., or Bleek. Cocos, iv. p. 451) ; 



Bleek. Batoe, p. 315. 

 blochii, Benn. in Proc. Zool. Soc. 1835, p. 207. 



D * A -2- 

 "■ 5i- ^- 24- 



The height of the body is more than one -half of the total length 

 (the caudal fin not included). Dorsal and anal fins elevated. Yellowish- 

 red, with ten brown cross-bands reaching from the back to the 

 belly, the two anterior and the last being much broader than the 

 others : the first from the neck through the eye ; the second touching 

 the operculum and running to the anus ; those on the body are 

 divided by one or two bluish streaks into two or three parallel 

 portions. Dorsal and anal fins violet, the former with seven or 

 eight blue bands which are inteniipted anteriorly, forming spots ; 

 anal fin with three or foiu* similar bands ; caudal fin colourless, 

 posteriorly with a darker margin. 



Sea of Batoe. 



a. Stufi'ed: sixteen inches long and fourteen high. Feejee Islands. 

 Voyage of H.M.S. Herald. — The colours of this specimen having 

 faded, we are not certain whether it belongs to this species. 



41. Acanthurus hypselopterus. 



Bleek. Floris, p. 327. 



The height of the body is two-fifths of the total length (the 

 caudal fin included). Dorsal and anal fins elevated. Blackish- 

 violet ; snout dotted with blue. Body with six yellow cross-bands, 

 edged Avith blue : the fiii'st across the praeoperculum ; the second 

 from the neck, across the operculum. Dorsal and anal fins violet ; 

 caudal with the base yellow. {Bl.) 



Sea of Larantuka. 



42. Acanthurus desjardinii. 



Benn. Proc. Zoo!. Soc. 1835, p. 127. 



D. A. A. ^. 



29 • 23 



The height of the body is more than one-half of the total length 

 (the caudal fin not included). Dorsal and anal fins elevated. Body 

 with dark-brown cross-bands, extending to the belly, and with 

 bluish transverse streaks. Snout and thorax with bluish dots. The 

 first cross -band from the neck through the eye to the interoperculum, 

 scsparated from the second by a gi'eyish interspace ; the second from 

 the origin of the dorsal to the root of the pectoral ; the others partly 

 lined, partly divided by the bluish streaks, which are continued on 

 the dorsal and anal fins, forming there arched bands ; both fins 



