1. CHJETOBON. 7 



6. ChsBtodon auriga. 



Chfetodon auriga, jPors/v. p. 60; Bl. Schn. p. 226; Cui\ ^- Val vii. p. 79. 

 Cli<etodou auriga, part., Rilpp. N. TV. Fische, p. 28. 



D. if. A. ^. L. lat. 33. L. transv. 6/13. 



Snout produced, pointed, conical, one-half longer than the diameter 

 of the eye ; prseopercnlum very indistinctly serrated ; the fifth dor- 

 sal ray more or less elongate, filiform. The ocular band extends 

 over the interoperculum, is narrower above the oi'bit and wider 

 below. The anterior part of the back with blackish streaks obliquely 

 descending forwards, the remainder of the body with streaks obliquely 

 ascending forwards ; an oblique cuneiform blackish band from the 

 origin of the soft dorsal to the posterior part of the anal. Dorsal 

 edged with black ; caudal and anal fins with a very fine blackish 

 marginal line ; ventrals whitish. 



Red Sea. 



a. Adult : stuffed. Red Sea. 

 6. Adult. 



7, Chsetodon epMppium. 



Chaetodon ephippium, Cuv. Sf Val. vii. p. 80. pi. 174 ; Less. Voi/. Cuq. 



Zool. ii. p. 174, Puiss. pi. 29. f. 1 ; Bleek. Amboina, iv. p. 836, and 



Flork, p. 325. 

 gamotii, Less. I. c. 



D. i2. A. ^. L. lat. 36. L. transv. 6/12. 



The snout is conically prominent, one-half longer than the dia- 

 meter of the eye ; prseopercnlum slightly denticulated ; the fifth ray 

 of the dorsal fin elongate, filiform. The ocular band rudimentary ; 

 a very large subovate black patch, edged with white, occupies the 

 greater part of the dorsal and the posterior portion of the back; 

 caudal gre^ash, with the upper and lower margins white. 



Molucca Sea ; Polynesia. 



a. Fiue specimen. Amboyna. Purchased of Mr. Frank. 

 h. Adult. Feejee Islands. Voyage of the Herald. 



8. Chaetodon semeion. 



Sleeker, Kokos, iv. p. 450. 



D. i|. A. |. L. lat. 35. 



The snout is pointed ; the praeoperculimi scarcely denticulated ; the 

 dorsal and anal rounded posteriorly ; the anterior tkreo dorsal rays 

 are produced, forming together a band which reaches to the caudal ; 

 caudal concave, the external rays being produced. The ocular band 

 is broader than the orbit. Yellow, each scale with a violet centre. 

 Dorsal fin with a broad black longitudinal band ; the scaly sheath 

 of the spinous dorsal with a blue and black margin, continued on the 

 soft portion of the fin ; one-third of the soft dorsal and anal is scale- 

 less, and longitudinally coloured with yellow, rosy, brown and orange. 



