THE FISHES OF PORTO RICO. 
133 
Lobe of dorsal dusky, that of anal golden; the young with 4 or 5 dark vertical bars and a faint 
opercular spot, these sometimes absent; opercular sj)ot is larger, deeper in color,, and more persistent 
in young of C. hippos, and usually serves to separate readily small individuals of the two species. 
C. latus is a very widely distributed species, occurring in all tropical seas, and very abundant in 
the West Indies, and by far the commonest species of Caranx in Porto Rico. The collection contains 
137 specimens, varying in size from 3 to 9.5 inches. The poisonous character sometimes attributed 
to its flesh evidently does not attach to it in Porto Rico, where it may be found for sale in the markets. 
Our specimens were collected at Palo Seco, San Antonio Bridge, Aguadilla, Mayaguez, Culebra, Isabel 
Segunda, and Fajardo. Mr. Gray took two at San Geronimo. 
Caranx lalus Agassiz, Pise. Bras., 105, 1829, Brazil; Jordan & Evermann, 1. o., 923, 1896. 
Caranx lepturus Agassiz, Pise. Bras., 106, 1829, Brazil. 
Scomber heberi Bennett, Fishes Ceylon, pi. 26, 1830, Ceylon. 
Caranx fallax Cuvier & Valenciennes, Hist. Nat. Poiss., IX, 95, 1833, Antilles: Brazil. 
Caranx sen Cuvier & Valenciennes, Hist. Nat. Poiss., IX, 105, 1833, Pondicherry. 
Caranx forsleri Cuvier & Valenciennes, Hist. Nat. Poiss., IX, 107, 1833, East Indies. 
Caranx peroni Cuvier & Valenciennes, Hist. Nat. Poiss., IX, 112, 1833, East Indies. 
Caranx lessoni Cuvier & Valenciennes, Hist.’Nat. Poiss., IX, 113, 1833, Malabar. 
Caranx belengeri Cuvier & Valenciennes, Hist. Nat. Poiss., IX, 116, 1833, Malabar. 
Caranx paraspisles Richardson, Voyage Erebus and Terror, 136, 1844, Port Essington. 
Caranx ricliardi Holbrook, Ichth. South Carolina, 96, pi. 13, fig. 1,1860, South Carolina. 
Caranx aureus Poey, Enumeratio, 76,1875, Cuba. 
Carangus fallax, Poey, Fauna Puerto-Riquena, 331,1881; Stahl, 1. c., 77 and 163,1883. 
Genus 58. VOMER Cuvier & Valenciennes. 
This genus is closely allied to Caranx, from which it differs only in its distortion of form, and in 
its weak teeth and very low fins. Body broad-ovate, very strongly compressed, all the outlines sharply 
trenchant. Head very gibbous above eyes, its anterior profile vertical; lateral line strongly arched, 
its posterior portion with very weak shields. Scales minute, rudimentary; the soft dorsal and anal 
extremely low, not falcate. Young much deeper in form than adult, all the fins higher, resembling 
Selene. Found in the warm seas. 
a. Soft dorsal with about 25 rays; depth in adult less than half length dorsalis 
aa. Soft dorsal with 21 or 22 rays. 
b. Depth in adult about half length setipinnis 
bb. Depth in adult much more than half length gabonensis, 93 
93. Vomer gabonensis Guichenot. “ Corcobado.” 
Head 2.75; depth 1.5; eye 3.8; snout 2.2; maxillary 2.5; mandible 2.2; interorbital 4.2; preor- 
bital 2.6; D. viii-i, 22; A. i, 18; pectoral 1; caudal 1.1; scales minute. *■ 
Body ovate, scarcely longer than deep, very greatly compressed; occipital region greatly elevated, 
making height of body greatest above eye; anterior profile nearly vertical from occiput to eye, 
