ACANTHOPTERYGII. 193 



Some of them have a scaly cheek, (1) and others are distinguished 

 by small scales.(2) 



Chromis, Cuv.(3) 



The lips, protractile intermaxillaries, pharyngeals, dorsal filaments, 

 and port of a Labrusj but the teeth of the pharynx and jaws resem- 

 ble those of a card, and there is a range of conical ones in front. 

 The vertical fins are filamentous, those of the belly being even fre- 

 quently extended into long threads; the lateral line is interrupted; 

 the stomach forms a cul-de-sac, but has no caeca. 



C. vulgaris; Sparus chromis, L. Rondel., 152. The Common 



or Black Coracinus of the ancients. A small chesnut-brown fish, 



taken by thousands in the Mediterranean. 



C. niloticus; Lab. niloticus, Hasselq., 346; Sonnini, pi. xxvii, 



f. 1; the Wliite^ or Egyptian Coracinus of the ancients.(4) 



Found in the Nile; it is two feet long, and is considered the 



best fish of Egypt. 



Cychla, B1. Schn. 



Teeth, small and crowded, forming a broad band, and dittering 

 from Chromis in this, as well as in the greater elongation of the 

 body. (5) 



(1) Coryphsena pentadadyla, Bl. 173, or Blennius maculis, 5, &c. Ankarstrom, 

 Stockh. Mem. pi. iii, f. 2. Linnseus has confounded it with the five-toed fish of 

 Nieuhof, Willbughb, App. pi. viii, f- 2, which is a mere Pilot-fish, thereby induc- 

 ing M. de Lacepede to make his genus Hemipteronotus of it, whose characters by 

 no means correspond to this Xirichthys. 



(2) Rason I'ecluse, Quoy and Gaym. Voy. Freycin., Zool., pi. Ixv, f. 1. 



(3) Xfiofiis, XP^f*'!» XP-f^"' Greek names of an unascertained fish. 



(4) Add, Labrus pundatus, lil., 295, 1; — Labre Jilamenteux, Lac, III, xviii, 2; — 

 Lab. l5-epines, Id., lb. XXV, 1; — Sparus surinamensis, Bl., 277, 2^ — Chsetodon 

 suratensis, BL, 217?; — Perca bimuculutu, BL, 310, 1. 



(5) I strike out many species from the genus Cychi,a as constituted by Bloch, 

 but I leave there, C. saxatilis, BL, 309; — V. ocellaris, BL, Schn. pi. Ixvi; — C. ar- 

 gus, Valenc, App. Humb. Obs. Zool. torn. II, p. 109; — perhaps the C. brasiliensis, 

 BL, 310, 2, and new species. But the C.erythrura, Bl., 261, and the C argyrea, 

 are Gekhes; the C. cuning, a CiESio; the C. brama, a Canthakus; the C. macropk- 

 talma, Bl., 268, the C.japonica, Id., 277, 1, the C. cynodon. Id., 278, 1. belong to 

 Dentex, the C. surinamensis, Id., 277, 2, and the C bimaculata. Id., 310, 1, to 

 CimoMis, the C. guttata, BL, 312, the C. maculata. Id., o\2, the C. pundata. Id., 

 314, to Sebkanus, or, according to tlie system of Bloch, to Bouianus. The C. 

 pelagica is the Cakanxojiore of Lacep. or tlie Coryphsena pelagica, L. It is eas- 

 ily seen that Bloch was quite as unfortunate in the construction of his genus 

 CrcHLA, as in that of Gkammistes. 



The Hiatulic would be Labri without an anal fin; but a single species, however. 

 Vol. IL— Z 



