16 SaUAMIPINNES. 



ornatus. The interior black streak along the margin of the anal 

 very broad. 

 6. Fine specimen. Amboyna. Purchased of Mr. Frank. — -ITie in- 

 terior black streak along the margin of the anal thread-hkc. 



23. Chaetodon fremblii. 



Chsetodon fremblii, Benn. Zool. Journ. iv. p. 42. 

 frehmlii, Cuv. ^- Val. vii. p. 24. 



D. if. A. f^. L. lat. 50. L. transv. 10/23. 



The snout is slightly produced, and rather longer than the diameter 

 of the eye ; the dorsal and anal fins rounded posteriorly. Body with 

 seven rather oblique, bluish, darker-edged longitudinal stripes ; the 

 fourth and fifth form a border to a large brown blotch, which occupies 

 the posterior third of the soft dorsal and the narrower part of the 

 tail; a brownish spot beforfe the first dorsal spine ; ventrals whitish. 



Sandwich Islands. 



a. Adult. From the Collection of the Zoological Society. — Type of 



the species. 

 h. Adult: stuffed. 



24. Chaetodon niitratus. 



D. 1?. A. ^. L. lat. 35. L. transv. 6/15. 



19 14 



The snout is nioderately produced ; the proeopereulum entire ; the 

 dorsal and anal fins rounded posteriorly. The ocular band crosses 

 the head above the orbits and does not extend to the interoperculum. 

 A broad oblique browTi band from the nape of the neck towards the 

 soft portion of the anal, whicli is not reached by it ; a second, parallel, 

 along the back to the lower side of the tail ; caudal, anal, and ^•entral 

 fins yellowish, the dorsal with a fine brown inframarginal line. 



Hah. ? 



a. Stuffed. Probably from Dr. Janvier's Collection, who collected 

 at the Mauritius. 



Description of the specimen, — Although the specimen is somewhat 

 deformed by stuffing, and has the pectoral and caudal fins mutilated, 

 I do not hesitate to found a new species on it, its characters being 

 so very distinct. The greatest height of the body is 1| in the 

 length, without caudal. The snout appears to be rather produced 

 and slightly pointed. The dorsal has only a thin coat of scales, and 

 its anterior part is nearly free ; the spinel are very strong, and 

 increase to the fourth, which is Ij in the length of the head ; the 

 following gradually become shorter to the eighth, the ninth to the 

 thirteenth being nearly equal. The soft portion of the fin is not 

 elevated and rounded posteriorly. The second anal spine is the 

 longest and equals the fourth of the dorsal. The soft portion is 

 rather higher than the soft dorsal. 



