CENTEOPOMUS. 47 



Vaill. & Boc. Miss. Sci, Mex., Poiss. p. 29 " ; Steind. DeukscLr. Ak. Wieii, xxxix. 1878, 



p. 22". 

 Ceniropomus cuvieri, Bocourt, Ann. Sc. Nat. (5) ix. 1868, p. 91 '" ; Vaill. & Boc. Miss. Sci. Mex., 



Poiss. p. 26, t. 1 ter. fig. 1 ". 

 Centropomus pedimaailn (part.), Jord. & Everm. t. c. p. 1119". 



Depth of bod)' about o^^ in the length, length of head 2g-. Snout II-I3 as long as e3"e, the diameter of which 

 is 4-4j ill the longth of head ; intororbital width G| in the length of head. Maxillary extending to 

 below anterior 5 oF eye, its greatest width ^ the diameter of eye or less. Prteorbital acutely serrated. 

 praeoperoulum acutely serrated, with 2 or 3 enlarged serrte at the angle ; prajopercular ridge with 2 serru: 

 at the angle. Opercular flap not reaching the vertical from origin of dorsal. 16 or 17 gill-rakers, 

 including 1 or 2 rudiments, on the lower part of anterior arch. 66-72 scales in a longitudinal series, 

 8i between middle of second dorsal and lateral line. Dorsal VIII, I 10 ; third spine a little longer th,ia 

 the fourth, a little more than i tlie length of head. Anal III 7 ; second and third spines of equal length 

 or the second slightly the shorter,^ or 3- the lengtli of the fish. Pectoral a little more than ^. the lengtli 

 of head. Vcntrals extending beyond the vent, which is nearly equidistant from base of inner ventral 

 ray and origin of anal. Caudal peduncle If-lJ- as long as deep. Silvery, back brownish ; lateral liuc 

 with or without brownish pigment ; spinous dorsal and membrane between second and third anal sjiiiio; 

 dusky ; ventrals dusky at the tips. 



Hah. Atlantic Coasts of Tropical America, entering rivers : 



Cuba 3 4 ; San Domingo " 1" 1-^; Jamaica ^^ ; Pernambuco '^. 



Here described from two specimens, 160 and 230 mm. in total length, from San 

 Domingo and Pernambuco. 



In this species the number of scales in a longitudinal series has been stated by 

 various authors at from 48 to 78. These discrepancies are no doubt due to different 

 methods of counting. There are about 50 scales in the lateral line. I count 66 and 

 72 in a longitudinal series just above the lateral line, from supraclavicle to base of 

 caudal fin, excluding the scales covering the base of the fin. In the same two 

 specimens Boulenger has counted 70 and 78 scales. 



2. Centropomus mediiis. 



Centropomus medms, Giintli. Proc. Zool. Soc. 1861, p. 144', and Trans. Zool. Soc. vi. 1868, 



p. 406'; Vaill. & Boc. Miss. Sc. Mex., Poiss. p. 30 (1874) '. 

 Centropomus fjrandficulatus, FjVCA-m. & Jenkins, Vvoc. U.S. Nat. Mus. xi. 1888, p. 139 ' ; Joi<!. & 



Everm. Bull. U.S. Nat. Mus. xlvii. 1896, p. 1120 \ 

 Centropomus pedimacula (non Poey), Jord. Proc. U.S. Nat. Mus. viii. 1885, p. 376°; Botileng. 



Cat. Fish. i. p. 371 (189.-)) \ 

 Centropomus pedimacula (part.), Jord. & Evercu. t. c. p. 1119"; Gilb. & Starks, Mem. Calif. Ac. 



Sci. iv. 1904, p. 90". 



Depth of body 31-4 in the length, length of head 2|-3. Snout Ig-ljj as long as eye, the diameter of which 

 is 4^5-6 in the length of head ; interorliital width 6-7 in the length of head. Maxillary extending to 

 below anterior | or ^ of eye, its greatest width 7^-3- the diameter cf eye. Prteorbital acutely serrated 

 posteriorly ; prfooperculum acutely serrated, with 2 or 3 enlarged serrse at the angle ; prajopercular ridge 

 with ] or 2 weak spines at the angle. Opercular flap not reaching the vertical from origin of dorsal. 

 16 or 17 gill-rakers, including 1 or 2 rudiments, on tlie lower part of anterior arch. 56-65 scales in a 

 longitudinal series, 6|-7| between middle of second dorsal and lateral line. Dorsal VIII, I 10 ; third 



