135 



CORVINA. 



We have next a fish which we arrange in the 

 genus Corvina of Cuvier, and the BraziHan Fishes. 

 The greater number of species inhabit the sea ; but 

 we have some in the estuaries of the Ganges, and 

 also in the lakes of North America. The fish given 

 by Spix, C. adusta, is from the Brazilian seas ; it is 

 represented of a uniform olive- brown, paler be- 

 neath, tinted with reddish yellow about the head 

 and opercula. 



" Corvina, Cuvkr. — Corpus elongatum plus minusve com- 

 pressum squamis non adeo magnis undique tectum. 

 Caput minus compressum, squamis varia; magnitudinis 

 omnino abduetum ; rostrum inflatum obtusissimum, 

 parva prominens, cavernosum. Operculum postice acu- 

 leatum, latum ; suboperculum augustum, praeoperculum 

 aculeis majoribus miuoribusve armatum. IMembrana 

 branchiostega lata, radiis 7. Apcrtura braucliialjs sat 

 magna. Os mediocre sub rostri apice, arcuatum, supra 

 in ossibus intermaxillaribus ct infra in niandibularibus 

 lata fascia dentium vclutinorum minutissiorum arma- 

 tum. Pinna3 dorsales duse ; anterior aculeis gracillibus 

 longioribus, posterior longior radiis fissis basi tantum 

 squamatis sufFulta. Pinna caudalis basi plus minusve 

 squamata. Pinna analis parva antice aculeis majoribus 

 minoribusve armata. Pinnse ventrales longe accumi- 

 natae, aculeo primo tenui ; pectorales longiores accumi- 

 natse." 



