852 liicut.-col. playfair on [nov. 14, 



52. Aphareus furcatus. 



Labrits furcatus, Lacep. iii. pp. 424, 477, pi. 21. f . 1 . 

 Caranxamorus sacrestinus, Lacep. v. p. 682. 

 Aphareus ccerule&cens, Cuv. & Val. vi. ]>. 487, pi. 102 6. 

 A. furcatus, Giinth. Fish. i. p. 386. 



Creole name " Vivaiit au grande gueule." 

 Hub. Seychelles ; Mauritius. 



53. C.ESio STRIATUS, Riipp. 



54. C. MACULATXJS. 



CcBsio maculatus, Cuv. & Val. vi, p. 439 ; Giinth. Fish. i. p. 391. 

 D. }5. A. ^. L. lat. 65. L. transv. 7/14. 



Diagnosis. — Height of body four and a half, and length of head 

 four and two-thirds in the total length ; diameter of eye thrice and 

 four-fifths in the length of the head, and rather shorter than the 

 interorbital space. The entire vertical fins scaly ; only two anal 

 spines. 



Colour. — Deep blue above ; each scale with a lighter centre,, an 

 indistinct yellow band from suprascapular, along the series of scales 

 next but one above the lateral line. A black band along each caudal 

 lobe. Axil black. 



Length 12 inches. 



Squamipinnes. 



55. Ch.ETODON SETIFER, Bl. 



56. C. ZANZiBARENSis, Playf. 



57. C. TRiFASCiATUS, Muugo Park. 



58. Heniochus macrolepidotus, L. 



59. HOLACANTHUS IGNATIUS, sp. n. (PI. XLL) 



D. |. A. ^. L. lat. ca. 72. 



Diagnosis. — PriEopercular spine smooth, shorter than the diameter 

 of the eye. Prseoperculum slightly serrated on the posterior edge, 

 a few minute spines on the anterior portion of its'lower limb. Other 

 opercles entire. A few conspicuous denticulations on the inferior 

 edge of prseorbital. Dorsal and anal fins much produced posteriorly, 

 extending beyond the posterior of caudal. Anal spines long, the 

 third nearly equal to the longest of the dorsal. Caudal rounded. 

 Scales small, very irregularly arranged, about seventy-two between 

 upper angle of operculum and root of caudal. ^ 



Colour. — Dull yellowish ; the body densely spotted with black ; 

 head and breast without such spots ; a blue streak along the median 

 line of snout ; another from occiput, skirting auterior margin of 

 orbit, to middle of lower prseopercular limb. Vertical fins spotted 

 with jiale blue, and with a few undulating lines along their base. 



