154 PROCEEDINGS OF THE NATIONAL MUSEUM vol.99 



eluding those recorded below from Venezuela, and his contribution 

 should be consulted for the identification of specimens. 



PLAGIOSCION SQUAMOSISSIMUS (Heckel) 

 CORVINA O CORVINATA 



Sciaena squamosissimus Heckel, Ann. Wein. Mus. Naturg., vol. 2, p. 438, pi. 30, 



figs. 26-28 (scales), 1840 (Rfo Negro; Rio Branco). 

 Plagioscion sqriamosissimus Steindachner, Denkschr. Akad. Wiss. Wien, vol. 41, 



p. 151, 1879 (Rio Negro; Ciudad Bolivar, Venezuela); Sitzb. Akad. Wiss. 



Wien, vol. 126, p. 663, pi. 1, fig. 2, pi. 2, fig. 1, 1917 (Rio Negro; Ciudad 



Bolivar on Rio Orinoco). 

 Sciaena amazonica Peters, Monatsb. Akad. Wiss. Berlin, 1877, p. 469 (Calabozo, 



Venezuela). — Sachs, Aus den Llanos, 1879, p. 226 (Calabozo). — Regan, 



Proc. Zool. Soc. London, 1905, pt. 1, p. 190 (Rio Negro). — Rohl, Fauna 



descriptiva de Venezuela, p. 407, 1942 (Orinoco). 



plagioscion AURATUM (Castelnan) 



Johnius auralus CASTELNAtr, Animaux nouveaux ou rares recueilles dans les 

 parties centrales de I'Am^rique de Sud, vol. 2, pt. 7. Poissons, p. 12, pi. 4, 

 fig. 2, 1855 (Ucayala). 



Plagioscion auratum Eigenmann and Allen, Fishes of western South America, p. 

 387, 1942 (Apure River). 



Genus OPHIOSCION Gill 



Ophioscion Gill, Proc. Acad. Nat. Sci. Philadelphia, 1863, p. 165. (Genotype, 

 Ophioscion iypicus Gill, U. S. N. M. No. 22861, west coast of Panama.) 



OPmOSCION VENEZUELAE Schnltz 



Figure 18 



Ophioscion venezuelae Schultz, Proc. U. S. Nat. Mus., vol. 96, p. 131, fig. 7, 1945 

 (Cano de Sagua, 25 km. north of Sinamaica, Venezuela). 



The following types were collected by Leonard P. Schultz in Vene- 

 zuela during 1942: Holotype, U.S.N.M. No. 121749, and 6 paratypes, 

 U.S.N.M. No. 121750, all from south of Cano de Sagua about 25 km. 

 north of Sinamaica, May 12. 



Description. — Certain measurements were made, and these data, 

 recorded below, are expressed in hundredths of the standard length, 

 first for the holotype and then for three paratypes in parentheses, 

 respectively. Standard lengths in millimeters, 139.5 (68.8; 150; 139). 



Length of head 28.6 (30.5; 32.4; 30.2) ; greatest depth of body 30.1 

 (27.0; 31.2; 30.9); diameter of eye 6.24 (7.12; 5.93; 6.11); length of 

 snout 8.74 (8.14; 9.34; 8.63) ; distance from tip of snout to rear edge of 

 maxillaries 13.1 (12.6; 13.0; 13.2); least width of preorbital 3.65 (3.63; 

 4.13; 39.5); postorbital length of head 18.0 (15.8; 17.9; 18.5); width of 

 bony interorbital space 9.68 (9.16; 9.66; 10.3); length of caudal pe- 

 duncle 25.1 (25.1; 24.3; 25.4); least depth of caudal peduncle 10.7 

 (9.88; 10.9; 10.9); length of base of second dorsal fin 32.6 (32.5; 32.1; 



