Jordan and Evermann. Fishes of North America. 1205 



gill rakers 6 -f 13 or 14 with 4 or 5 rudimentary oiies on upper angle, slen- 

 der, well separated ; region above the large eye prominent ; snout short, 

 bluutish, as long as eye, 4 in head ; cheeks with about 10 rows of scales, 

 regularly placed, about 22 scales before dorsal; seme on preopercle 

 much produced in the adult, short in the young, its upper angle nearer 

 to end of opercular flap than tip of snout ; upper lobe of caudal little 

 produced; longest dorsal spine 2f in head ; anal spines feeble, graduated. 

 Coloration of* body light brown above, yellowish below; sides salmon 

 color, much shading of cherry red on head and fins in life ; head with 

 greenish streaks ; the scales on sides each with a silvery center ; irregular, 

 vague, dark cross bars broader than the interspaces ; a black bar at base 

 of caudal; usually no blue lines or white areas on head; soft dorsal with 

 bright-blue spots, each surrounded by a dark-blue ring ; caudal with bars 

 of similar spots ; young with 2 black longitudinal stripes, the lower form- 

 ing a spot at base of caudal. Both coasts of tropical America, north to 

 Havana and Guaymas ; very common on the coast of Brazil and in the 

 Gulf of California; found in shallow bays; our specimens from Guaymae, 

 Mazatlan, Panama, Sambaia, Rio Janeiro, and Havana, (radialis, radiant, 

 from the radiating preopercular spines.) 



Serranus radialis, QUOY & GAIMABD, Voyage Uranie, 316, 1824, Rio Janeiro; CUVIEB & VALEN- 

 CIENNES, Hist. Nat. Poiss., n, 213, 1828; BOULENGER, Cat., i, 297. 



Sen-anus bivittaius, CUVIEB & VALENCIENNES, Hist. Nat. Poiss., 11, 241, 1828, Martinique. 

 Cenlropristes ayresi,* STEINDACHNER, Ichth. Notizen, vn, 1, 18G8, pi. i, fig. 1, Santos, Brazil. 

 Paraserranus hasselli, BLEEKEK, Verh. Akad. Amst., xiv, 1873, No. 2, 7. 



Cenfr<>iiristis radialis, GuNTHER, Cat., i, 83, 1859; STEINDACHNEB, Ichth. Beitrage, iv, G, 1875. 

 Jldqxrca lirittata, POEY, Synopsis, 282, 1868; POEV, Enumeratio, 22, 1875. 

 Diplectrum radialis, STREETS, Bull. U. S. Nat. Mus., vn, 52, 1877; JORDAN & EIGENMANN, I. c., 



398, 1890; KVERMANN & JENKINS, Proc. U. S. Nat. Mus., 1891, 142. 

 Centropristis bivittatus, GUNTHER, Cat., i, 82, 1859. 



1592. DIPLECTRUM MACROPOMA (Gunther). 



Head 3^; depth 3^. D. X, 12; A. Ill, 7; scales 5-48-14. Snout 4 in 

 head; eye 4. General form of body and head essentially as in D. radiale. 

 Produced portion of preopercle not very broad ; its (vertical) breadth not 

 more than i length of head. Scales on cheeks large and irregular, in 5 

 or 6 rows ; about 15 scales before dorsal ; width of preopercular process 

 about i head, its posterior edge truncated ; gill rakers x -{- 10 ; longest 

 dorsal spine 2f in head. Coloration brownish, with numerous traces of 

 vague, dark cross bars; a very distinct black caudal spot ; snout with 4 

 or 5 pale blotches ; a pale streak from below eye across preopercular angle ; 

 no black at base of soft dorsal, the fin with very faint traces of blue spots; 

 caudal plain, darker toward tip : ventrals pale. Pacific Coast of tropical 

 America, in rather deep water, from Panama southward ; abundant ; here 

 described from specimens dredged by the Albatross, (/m/cpof, large; Trw^a, 

 opercle.) 



*Dr. Steindachner has already noted the identity of his Centropristes ayresi from Santos, Brazil 

 with Diplectntm radiale. With Dr. Stoimlaclmer, wo find no difference between Atlantic and 

 Pacific examples of this type. Scn-mm* l>l,-itl,tlm is merely the young of this species. Specimens 

 sent to us from Cuba by Poey confirm this supposition, as they differ from radiale precisely as the 

 young differs from the adult informosum. 



