36 POMACENTRID^. 



Chaetodon sargoides, LacSp. iv. pp. 453, 471, 47ii. 

 Glyphisodon saxatilis, Cuv. 8f Val. v. p. 446. 



D. i?. A.:^. L. lat. 30. L. transv. 4/11. Cac. pylor. 3. 

 Vert. 12/14. 



The height of the body is contained once and three-fourths (twice in 

 young specimens) in the total length (the caudal fin not included) ; 

 the width of the interorbital space equals that of the orbit ; the 

 breadth of the infraorbital ring below the centre of the eye is one- 

 half of the greatest breadth of the praeorbital. Incisors rather narrow, 

 notched. The soft dorsal is produced into a point, the fourth and 

 fifth rays being the longest ; caudal fin forked. Body with five black 

 cross-bands, which are not broader than the interspaces between 

 them : the first from the first dorsal spine to the humerus ; the 

 second from the fourth and fifth dorsal spines towards the middle of 

 the ventral fin ; the third from the ninth and tenth dorsal spines 

 towards the vent ; the fourth from the end of the spinous dorsal to 

 the middle of the anal ; the fifth immediately below the end of the 

 soft dorsal, and continued on the posterior rays. 



Tropical parts of the Atlantic. 

 Or-c. Young. Island of Cordova. Presented by J. U. Skinner, Esq. 

 d, e. Fine specimens. Puerto Cabello. Purchased of Mr. Brandt. 

 /. Fine specimen. S. Domingo. Purchased of Mr. Cuming. 

 g-h, i. Adult and half-grown. Caribbean Sea. 

 k-x. Skins. Caribbean Sea. From Dr. Parnell's Collection. 

 y-z. Adult : bad state. Bahia, Purchased of M. Parzudaki. 

 a, 13, y, S, €-^. Adult and half-grown. 

 r). Half-grown : stufied. 

 6. Adult : skeleton. Canbbean Sea. 



2. Glyphidodon troschelii. 

 GiU in Proc. Acad. Nat. Sc. Philad. 1862, p. 150. 



D. i|. A. A L. lat. 29-30. L. transv. 4/11. 



The height of the body is one-half of the total length (without 

 caudal) ; the width of the interorbital space equals that of the orbit ; 

 the breadth of the infraorbital ring below the centre of the eye is 

 rather less than one-half of the greatest breadth of the praeorbital. 

 Incisors narrow, notched. The soft dorsal is slightly produced into 

 a point formed by the third, fourth and fifth rays, which are the 

 longest ; caudal forked. Body with five blackish cross-bands, which 

 are not broader than the interspaces between them : the first below 

 or immediately before the origin of the dorsal fin ; the second below 

 the third and fifth spines ; the third from the seventh and ninth 

 dorsal spines to the vent ; the fourth below and immediately before 

 the origin of the soft dorsal ; the fifth immediately behind the end of 

 the dorsal and anal fins. 



Coast of Lower California. 



a-c. Young. Cape St. Lucas. Presented by the Smithsonian Insti- 

 tution. 



