ACANTHOPTERYGIL BERYCWJE. 



TAB. IX. 



TRACHICHTHYS PRETIOSUS, Nob. 



Alfonsin, ou Pargo, do alto. 



Black-mouthed Alfonsin or Rough-fish. 



Char. Gen. 



Caput osseiim, cariosmn, celluloso-cavemosum, nudum ; operculum inerme ; spina scapularis 

 magna. Praeoperculum basi in spinam validam productum. Suborbitaria radiato-costata ; costis sca- 

 bris. Abdomen scutellis serrato-carinatuni. 



Oculi magiii. Pinna; dorsalis unicEe subtriangidaris spinse paucse, remotiuscula; ; membrana dis- 

 tincta interjecta. Pinnae ventrales hetero-(l + 6)-radiat8e. "Membrana brancliiostcga octo-ra- 

 diata. 



Obs, — Pisces regionis calidioris temperatse extratropicae, Berydhus simillimi ; coloribus mcEstion- 

 bus ; spina baseos praeoperculi pinnaeque dorsalis forma ad Holocentrum tendentes. Linea lateralis 

 squamis majoribus subpulvinatis distincta. Carinse abdominalis capitisque structura vere mirifica. 



Char. Spec. 



T. scaber ; carinae abdominalis squamis integerrimis, pinnarumque spinis striatis inemiibus, laevi- 



gatis : dentium fasciis angustis ; vomere inermi. 



8 + I -f IX. 

 D.6 + 13;A.3 + 9; V.1+6; P. 2 + 13 v. 14 ; C. g— — ==^ 



M.B. 8 ; Sq. Un. lat. 28 v. 29 ; Sq. carina abdom. 11 v. 13 ; Vert®. 11 abd. + 15 caud. = 26. 

 T. jyretiosus, Suppl. Fish. Mad. in Proceed. Zool. Soc. 1839. p. 77. 

 Hoplostetlius Mcditerraneus, Cuv. and Val. iv. 469, t. 97 bis. 



Longit. rr 7^ — 8 poll. = 2^ — 3 X corporis alt. 

 Tempus, vere, autumno. 

 Locus, in alto : rariss. 



The first notice of this curious and interesting genus is found in a 

 description by Shaw, towards the end of the last century, of a fish procured 

 by White, the author of a Voyage to New South Wales, in that country. 

 This appeared, accompanied with a good characteristic figure, under the 

 head of Trachichthys australis, in the Naturalist's Miscellany, t. 378 ; 

 and was afterwards republished in the same author's General Zoology, vol. 

 iv. part 2, p. 631, t. 92. By Schneider the fish had previously been 

 taken up from the original figure and description, and inserted in his edi- 

 tion of Bloch's Systema Ichthyologise, as a species of Amphiprion, under 

 the name of A. carinatus. It also had appeared meantime again, under its 

 original name, in Turton's Translation of Gmelin's Systema, vol. i. p. 820. 



VOL. I. F 2 



