68 TKACHINHLE. 



Elacate atlantica, Cuv. fy Val. viii. p. 334, pi. 233. 



bivittata, Cuv. if Val. viii. p. 338 ; Schley. Faun. Japon. Poiss. p. 104, pi. 56 ; Cant. Mai. Fish. 



p. 116. 

 nigra, Giinth. Fish. ii. p. 375. 



Zanzibar. Aden. Indian seas. Tropical parts of the Atlantic. 



ECHENEIS, Artedi. 



225. Echeneis remora. 

 For synonymy see Giinth. Fish. ii. p. 378. 



Aden. Zanzibar. Seas of temperate and tropical regions. 



226. Echeneis naucrates. [106.] 



Echeneis naucrates, L. Syst. Nat. i. p. 446; Bl. ii. p. 131, t. 171; Cantor, Mai. Fish. p. 199; Schley. 

 Faun. Japon. Poiss. p. 270, pi. 120. f. 1 ; Richards. Ichth. China, p. 203 ; Giinth. Fish. ii. p. 384. 



Aden. Zanzibar. Seas of temperate and tropical regions. 



Family TRACHINHXE. 



PERCIS, Schneid. 



227. Percis punctulata. L72L] 

 Percis punctulata, Cuv. if Val. iii. p. 265 ; Giinth. Fish. ii. p. 238. 



Zanzibar. Mauritius. 



228. Percis polyophthalma. [506.] 



Percis polyophthalma, (Ehrenb.) Cuv. § Val. iii. p. 272. 

 Zanzibar. Med Sea. Indian Ocean. 



229. Percis hexophthalma. [225.] 



Percis hexophthalma, (Ehrenb.) Cuv. if Val. iii. p. 271, vii. p. 507; Giinth. Fish. ii. p. 239. 

 cylindrica, Riipp. Atlas, Fische, p. 19, t. 5. f. 2 (not Cuv.) . 



This and the preceding species have been united into one by some authors ; but we 

 entertain doubts as to the propriety of doing so. All the specimens with three 

 ocellated spots on each side (P. hexophthalma) have about ten narrow oblique brown 

 lines radiating from the lower part of the eye, over the opercles, whilst the specimens 

 with six or seven ocelli on each side (P. polyophthalma) have the sides of the head 

 dotted. Unfortunately the internal organs of our specimens are not sufficiently well 

 preserved to enable us to determine the sexes, so as to ascertain whether the differences 

 between them are sexual. 



