336 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 93 
Coloration.—In alcohol the back is tan or straw-colored and often 
with a brownish streak along the middorsal line; dorsal fin with 
scattered dark pigment cells distally and more numerous anteriorly; 
other fins unpigmented; no caudal spot; humeral bar brownish, 
crescent-shaped with the concavity on anterior side and the rear 
margin a little convex dorsally but nearly straight ventrally; this 
humeral bar resembles a somewhat flattened question mark on many 
specimens; peritoneum silvery ventrally, but pigmented with black 
dorsally. 
Remarks.—This new species differs from all other species of Crea- 
grutus in having fewer (iil, 8 or i, 9) anal rays, except Creagrutus 
brevipinmes, which has iu, 9 or ii, 10; it differs also in having a crescent- 
shaped humeral bar instead of an elongate one as in brevipinnis; the 
latter species is deeper and less elongate than bolivari. From C. 
phasma it differs as indicated in the key. 
Named boliwvari in honor of the liberator of northern South America. 
CREAGRUTUS BENI Eigenmann 
Creagrutus beni E1GENMANN, Ann. Carnegie Mus., vol. 7, No. 1, p. 172, pl. 6, fig. 2, 
1911 (Villa Bella on Rio Beni); Indiana Univ. Stud., vol. 7, No. 44, p. 12, 
1920 (Rio Guaire near Caracas; El Concejo, Rio Tiquirito; Maracay, Rio Bue; 
Isla del Buro, Venezuela).—Prarsr, Univ. Wisconsin Stud., No. 1, pp. 20, 48, 
1920 (Lake Valencia, Isla del Buro, Venezuela).—E1gmenMAnn, Mem. Mus. 
Comp. Zool., vol. 43, pt. 4, p. 421, pl. 58, fig. 3, pl. 93, figs. 4, 5, 7, 1927 (Lake 
Valencia Basin, Venezuela).—Fow.rr, Proc. Acad. Nat. Sci. Philadelphia, 
vol. 83, p. 408, 1931 (Yarapa River at Yarapa, Venezuela). 
The following collections were made by Leonard P. Schultz during 
1942 in the Maracaibo Basin of Venezuela: 
U.S.N.M. No. 121501, 50 specimens, 24 to 70 mm. in standard length, from the 
Rio Cobre above mouth, tributary to Rio Quinta, thence into Rio La Grita below 
La Grita, Catatumbo system, March 31. 
U.S.N.M. No. 121505, 356 examples, 14.5 to 74 mm., Rio Gonzales, tributary 
to Rio Chama, at La Gonzales, Estado de Mérida, March 29. 
U.S.N.M. No. 121506, 4 examples, 23 to 31 mm., Rio Chama, 10 km. below 
Lagunillas, Estado de Mérida, March 30. 
U.S.N.M. No. 121502, 25 specimens, 19 to 57 mm., Rio Motatan, 4 km. above 
Motatan, March 25. 
U.S.N.M. No. 121504, 7 specimens, 19 to 54 mm., Rio Tachira, 7 km. north of 
San Antonio, Gatatumbo system, April 1. 
U.S.N.M. No. 121503, 28 examples, 23 to 55 mm., Rio Chama at Estanques, 
Estado de Mérida, April 3. 
U.S.N.M. No. 121499, 378 specimens, 18 to 71 mm., Rio Barregas just below 
Egido, Rio Chama system, Estado de Mérida, March 29. 
The following collection was made in the Rio Tuy system near 
Caracas: U. S. N. M. No. 121500, 5 examples, 36 to 49 mm., 
quebrada near El Valle south of Caracas, May 12, 1942, L. P. Schultz, 
G. Zuloaga, William Phelps, Jr., R. Sherman. 
