OF THE FISHES OF MADEIRA. 179 
Caput parvum, declive, nuchaque squamosum, epunctatum. Rostrum brevissi- 
mum, obtusum, nudum: maxilla inferiore squamos4, cirrisque geminis longis, 
symphysi subtus affixis. Ossa intermaxillaria, omnia palati, dentaria, linguaque 
dentibus minutis creberrimis scabra. Operculum inerme, rotundatum, squamo- 
sum. Preoperculum squamosum ; limbo inferiore anguloque nudo, striato, mar- 
gine eroso-denticulato. Interoperculum nudum, minutissime denticulatum. 
Pinna dorsalis et pinna analis nude, antice elevatz, spinis debilibus, inconspicuis, 
brevibus, paucis ; basi in sulco sita, squamisque marginalibus sulci utrinque 
celata. Pinne ventrales septem-radiate ; radio primo simplici, at molli, articu- 
lato. 
Cauda furcata. 
Membrana branchiostega quadriradiata. 
Polymixia nobilis, nob.—‘‘ Salmonéta do Alto.” Trans. of the Cam. Phil. Soc., vol. vi. 
p. 1. t.4.  Rarior. 
This curious new genus is perhaps more closely allied to the Percide than to 
the true Chetodontide. Viewed as one end of an osculant group, connecting 
these two families together, by means of the old-established genus Brama, BL., 
and the following new one Leirus, nob., it is an interesting addition to our ca- 
talogues, to which it is only most extraordinary that it has not sooner been ad- 
mitted, being far from uncommon, and a well-known market-fish, deservedly held 
in the very highest estimation for the table. 
Brama Raii, Cuv. & Val.‘ Freira,” Cuv. & Val. vii. 281. t. 190. 
Brama marina, Flem., i. 210. No. 135. 
Ray’s Bream, Yarr. 117. 
Toothed Gilt-head, Penn., Brit. Zool., Ed. 1™ iii. 243. t.48. Rarior. 
Gen. Lrirvus, nob. 
Corpus ellipticum, compressum, squamis deciduis, levibus, parvis. 
Caput parvum, declive, nuchaque nudum, punctato-gelatinosum. Rostrum brevis- 
simum, nudum, truncatum. Os parvum: maxilla superior obtusissima, inferiore 
brevior, truncata. Dentes minuti, simplices, in utraque maxilla uniseriati: pa- 
latini nulli. Opercula inermia, squamosa, marginibus serratis. 
Pinna dorsalis et pinna analis squamose, postice latiores. 
Cauda subfurcata. 
Membrana branchiostega septemradiata. 
Leirus Bennettii, nob.—‘‘ Leiro.”” Proc. of the Zool. Soc. 1833.1. p. 143. Trans. of the 
Cam. Phil. Soc., vol. vi. p.1. t.5. Rarior. 
Another new and very distinct genus, closely allied to Brama, and through it 
to the preceding genus Polymizia ; whilst on the other hand it approaches the 
true Chetodontide in more points than even Brama does. Each of these three 
