26 SQUAMiPiimrEu. 



forwards, those above the anal ascending obliquely forwards. The 

 dorsal with a narrow black margin, and a black band along the base 

 of the soft portion, posteriorly bent downwards, crossing the tail and 

 continued on a part of the anal. The anal with a narrow black and 

 white margin ; the caudal with two black cross-bands, the anterior 

 of which is crescent-shaped. 

 From the Red Sea to Polynesia. 



a. Adult. Mauritius. From the Collection of C. Telfair, Esq. 



b. Adult ; skeleton. Mauritius. From the Collection of C. Telfair, 



Esq. 



c. d. Fine specimens. Amboyna. Purchased of Mr. Frank. 

 e. Adult. From the Haslar Collection. 



Skeleton. — The configuration of the bones of the head is more 

 like that of Chcetodon striganffulus than that of Ch. meyeri. The 

 lower jaw is elongate and rather low, the dentary being some%vhat 

 pointed ; the praeorbital is produced, and twice as long as high ; the 

 infraorbital ring, especially the posterior portion, is narrow, and the 

 latter is joined to the inner ridge of the prajoperculum. The in- 

 ferior limb of the pra^operculum is 1| as long as the posterior, which 

 ascends obliquely backwards; the operculum is snbquaui angular, 

 twice as high as wide, with the posterior side slightly emarginate ; 

 the suboperculum narrow, tapering posteriorly ; the interopereulum 

 oblong, irregularly quadrangular. The occipital crest is exceedingly 

 high, and forked at its upper extremity, as described in Ch. meyei'i. 

 The length of the abdoniinal portion of the vertebral column is to 

 that of the f^audal as 1 : 1-3. The haemal spines of the first and 

 second caudal vertebrae are anchylosed together ; the first and second 

 interhaemals are separated. Epipleural spines none. There is a 

 round foramen between the radius and coracoid, near the symphysis 

 of the coracoids. 



42. Chsetodon gnttatissimus. 

 Bennett, Proc. Comm. Zool. Soc. ii. p. 183. 



D-i- A. A L.lat.32. 



The snout is slightly produced, and rather longer than the dia- 

 meter of the eye ; pracoperculum serrated ; the dorsal and anal fins 

 rounded posteriorly. The ocular band extends from the nape of the 

 neck to the lower margin of the interopereulum ; it is narrower 

 than the eye above, and much narrower below the orbit ; the upper 

 portion is edged with yellow. Sides of the body yellow, each scale 

 with a black spot ; dorsal and anal purplish-brown, dotted with 

 black and edged with yellowish ; caudal with a black crescent across 

 the middle ; ventrals yellowish. 



Sea of Ceylon. 



a. Adult. Ceylon. From Dr. Sibbald's Collection. — Tj^jc of the 



species, 



b. Adult . skin. Ceylon. From Dr. E. F. Kclaart's Collection. 



