Jordan and Evernian?i. — FisJies of North America. 1205 



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

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

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

 regularly placed, about 22 scales before dorsal ; serr;i' on preopercle 

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

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

 produced; longest dorsal spine 2| iu head ; anal spines feeble, graduated. 

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

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

 greenish streaks ; the scales on sides each Avith 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 iu the 

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

 Mazatlan, Panama, Sambaia, Rio Janeiro, and Havana, {radialiii, radiant, 

 from the radiating preopercular spines.) 



Serraims radialis, QuOY & Gaimabd, Voyage Uranie, 31G, 1824, Rio Janeiro; CuviEn & Valen- 

 ciennes, Hist. Nat. Poiss., ii, 213, 1828; Boulknger, Cat., t, 297. 

 Seiramis biviUattts, CuviEu & Valenciennes, Hiet. Nat. Poiss., ii, 241, 182S, Martinique. 

 Centropristes a»/?es!,* Steindachner, IcLth. Notizen, vii, 1, 18C8, pi. i, fig. 1, Santos, Brazil. 

 Paniserramis hassdli, Bleekek, Verli. Akad. Amst., xiv, 1873, No. 2, 7. 



Centroprislis radialis, GI'ntiier, Cat., I, 83, 1859; Steinpachnek, Iclith. Beitnige, IV, G, 1875. 

 Salipcrca hinltata, PoEY, Synopsis, 282, 1868; PoEV, Eiuimeratio, 22, 1875. 

 Dipledrnm radialis, Streets, Bull. U. S. Nat. Mus., VH, 52, 1877; Jordan & Eigenmann, /. c, 



398, 1890; Kvermann & Jenkins, Proc. U. S. Nat. Mus., 1891, 142. 

 Ceniroprislia bivUtatus, GiJNTHEE, Cat., i, 82, 1859. 



159*2. DIPLECTRUM MACROPOMA (GUnther). 



Head 31^; depth 3J^. D. X, 12; A. IH, 7; scales 5-48-14. Snout 4 in 

 head; eye 4. General form of body and head esseutially as in D. rad'uth'. 

 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-f-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 Jlbatroas. {/xaKpof, large; nib'ia, 

 opercle.) 



* Dr. Steindachner has already noted the identity of his (\;ilroi»isles aijresi from Santos, Brazil, 

 with Diplectrum radial,: With Dr. Steiudachuer, we find no difference between Atlantic and 

 Pacific examples of this type. Serratins biiUlalu.i is merely the young of this species. Specimens 

 sent to us from Cuba by Poey confirm this supposition, as tbey differ from radiate precisely as the 

 young differs from the adult iu formosum. 



