20. CENTROLOPHUS. 403 



that from the ^ij^l ; the rays are very feeble, low, and the fin is 

 not elevated on its anterior third, as in C. pompilus. The point 

 where the spines pass into rays cannot be distinguished. The fin is 

 scaly. The caudal fin is forked, and its length one- sixth of the total. 

 The anal fin commences vertically below the nineteenth dorsal ray, 

 and terminates opposite to the end of the dorsal fin ; it is low, like 

 the dorsal, anteriorly not elevated, scaly ; the length of its base is 

 3^ in the total. Pectorals smaU, -with an elongate triangular lobe 

 of the humeral above. The root of the ventrals falls vertically im- 

 mediately behind that of tlie pectoral ; they are very small. 



Scales exceedingly small. The lateral line makes a short cm-ve 

 above the pectoral, and runs from thence along the middle of the body. 

 Colour imiform brown. 



inches, luies. 



Total length 19 



Height of the body 3 10 



Length of the head 3 



Width between the orbits 1 1 



Length of the dorsal fin 10 3 



Distance of the dorsal fin from the extre- 

 mity of the snout 4 2 



Length of the caudal fin 3 2 



Lenc-th of the anal fin 5 9 



2. Centrolophus pompilus. 



The Black-fish. 



Pompilus,^ iZopjfM viii. cap. 14. p. 250; Gcsn. Aqvat. iv. p. 753; 



Aldrov. iii. c. 19. p. 325 ; Jonsto)i, i. lib. i. tit. i. cap. 2. art. 2. tab. 3. 



f. 5 ; -Rrt//, Si/n. p. 101. 

 Pompilus rondeletii, Will p. 215. tab. 0. 1. f. G ; Lowe, Proc. Zool. Soc. 



1839, p. 81, and Trans. Zool. Soc. iii. p. 7. 

 PCorj'phfena pompilus, L. Si/st. i. p. 447; (Bl. ScIin. p. 296; LacSp. 



iii. p. 198; Eisso, Ichth. Nice, p. 180). 

 Black-fish, Jac/o in Jiorlase, Nut. Hist, of Coniiv. p. 271. pi. 26. f. 8, 

 Black RulTe, Perm. Brit. Zool. iii. p. 228. 

 Merle, Diiham. Peches, ii. sect. iv. p. 37. pi. 6. f. 2. 

 Perca nigi*a, L. Gm. i. p. 1321. 

 Holocentnis niger, Lacep. iv. pp. 330, 357. 

 Centi-olophua niger, Lacep. iv. pp. 441, 442. pi. 10. f. 2. 

 pompilus, Ciw. 8)- Val. ix. p. 334. pi. 269, cop. by Yarrcll, Brit. 



Fishes, 3 edit. i. p. 247 ; Car. Rhjne Anim. PI. Poiss. pi. 65. f. 2 ; 



Bonap. Faun. Ital. Pesc. cum fig. ; Gnichen. Explor< Alyer. Poiss. 



p. (53. 

 Acentrolophus maculosus, Nardo, Prodr. Ichth. Adr. sp. 02. 

 Centi'olophus morio, Cue. ^" Val. ix. p. 342. 

 Hparis, Risso, Eur. Ilcrid. iii. p. 337 ; Cm: & Val. ix. p. 345. 



B. 7. D. 39-41. A. 23-25. Caec. pylor. 9. Vert. 11/14. 



The height of the body is one-fourth of the total length, the length 

 of the head one-fifth. The maxillary reaches to below the anterior 

 margin of the eye The length of the dorsal fin is 2^ in the total, 



2 1) 2 



