CENTROPOMUS. 47 
Vaill. & Boc. Miss. Sci. Mex., Poiss. p. 29"; Steind. Denkschr. Ak. Wien, xxxix. 1878, 
p. 22". 
Centropomus cuviert, Bocourt, Ann. Sc. Nat. (5) ix. 1868, p. 91'* ; Vaill. & Boc. Miss. Sci. Mex., 
Poiss. p. 26, t. 1 ter. fig. 1. 
Centropomus pedimacula (part.), Jord. & Everm. t. c. p. 1119“. 
Depth of body about 33 in the length, length of head 23. Snout 1-14 as long as eye, the diameter of which 
is 4-43 in the length of head ; interorbital width 64 in the length of head. Maxillary extending to 
below anterior 3 of eye, its greatest width 3 the diameter of eye or less. Prexorbital acutely serrated, 
preoperculum acutely serrated, with 2 or 3 enlarged serre at the angle ; prwopercular ridge with 2 serrx 
at the angle. _Operenlar 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, 
82 between middle of second dorsal and lateralline. Dorsal VIII,110; third spine a little longer than 
the fourth, a little more than 4 the length of head. Anal III 7; second and third spines of equal length 
or the second slightly the shorter, } or 2 the length of the fish. Pectoral a little more than 3 the length 
of head. Ventrals extending beyond the vent, which is nearly equidistant from base of inner ventral 
ray and origin of anal. Caudal peduncle 13-14 as long as deep. Silvery, back brownish; lateral line 
with or without brownish pigment ; spinous dorsal and membrane between second and third anal spines 
dusky ; ventrals dusky at the tips. 
Hab. Atiantic Coasts of ‘Tropical America, entering rivers : 
Cuba *?4; San Domingo ®!718; Jamaica!4; Pernambuco 6, 
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 medius. 
Centropomus medius, Giinth. Proc. Zool. Soc. 1864, p. 144’, and Trans. Zool. Soc. vi. 1868, 
p. 406°; Vaill. & Boe. Miss. Se. Mex., Poiss. p. 30 (1874) °. 
Centropomus grandoculaius, Everm. & Jenkins, Proc. U.S. Nat. Mus. xi. 1888, p. 139*; Jord. & 
Everm. Bull. U.S. Nat. Mus. xlvii. 1896, p. 1120°. 
Centropomus pedimacuia (non Poey), Jord. Proc. U.S. Nat. Mus. viii. 1885, p. 376°; Bouleng. 
Cat. Fish. i. p. 871 (1895) ”. 
Centropomus pedimacula (part.), Jord. & Everm. t.c. p. 1119°; Gilb. & Starks, Mem. Calif. Ac. 
Sci. iv. 1904, p. 90°. 
Depth of body 33-4 in the length, length of head 23-3. Snout 13 —1# as long as eye, the diameter of which 
is 43—6 in the length of head ; interorbital width O73 in the length of head. Maxillary extending to 
below anterior ~ or 3 of eye, its greatest width 3-3 the diameter cf eye. Preorbital acutely serrated 
posteriorly ; preoperculum acutely serrated, with Qe or 3 enlarged serre at the angle; praopercular ridge 
with 1 or 2 weak spines at the angle. Opercular flap not reaching the vertical from origin of dorsal. 
16 or 17 gill-rakers, including ] or 2 rudiments, on the lower part of anterior arch. 56-65 scales in a 
longitudinal series, 63-73 between middle of second dorsal and lateral line. Dorsal VIII, I 10; third 
