18 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 99 



San Felipe: Town in Estado de Yaracuy, on Rfo Yaracuy. 



San F^lix: Town on western boundary of Estado de Falc6n, near mouth of Rfo 



Cocuiza. 

 San Fernando de Apure: City just below mouth of Rio Portuguesa, tributary of 



Rio Apure. 

 San Fernando de Atabapo: Town on Colombian border. 

 San Romdn, Cabo: Cape at outer tip of Peninsula de Paraguand. 

 San Sebastian: Town in Estado de Aragua. 

 Santa Bdrbara: Rfo Orinoco, southern Venezuela. 

 Santa Bdrbara: Town near upper Rio Amana, Estado de Monagas. 

 Santa Rosa, Salina: About 3 km. north of Maracaibo. 

 Sinamaica: Town near mouth of Rfo Lim6n, north of INIaracaibo. 

 Soledad: Town across river from Ciudad Bolfvar. 

 Tacarigua, Laguna de: Lake at coast, Estado de Miranda. 

 Tdchira, Estdcion : Town 60 km. north of San Crist6bal, Estado de Tdchira. 

 Tdriba: Town in Estado de Tdchira. 

 Tavorda: Town 6 km. west of Puerto Cabello. 

 Tigre. (See under Punta.) 



Tinaquilla: Town in Rfo Portuguesa drainage, Estado de Cojedes. 

 Totuma: An oil field about 100 km. southwest of Maracaibo near Rfo Palmar. 

 Trujillo: Town in Estado de Trujillo. 

 Tucacas: City on east coast of Estado de Falc6n, about 60 km. northwest of 



Puerto Cabello. 

 Tucupita: Town on Cano Mdnamo, Orinoco Delta. 



Tul6, Lago: Lake about 75 km. west of Maracaibo, tributary of Rfo Socuy system. 

 Upata: Town about 125 km. east of Ciudad Bolivar. 

 Uracoa: Town in Estado de Monagas, west of Tucupita. 

 Valencia, Lago de: Large lake southeast of Puerto Cabello. 

 Valera: Town in Estado de Trujillo. 



TAXONOMIC SECTION 



Class ELASMOBRANCHII 



Subclass Selachii 



Superorder Selachoidea: Sharks and Rays 



The sharks and rays may be distinguished from the bony fishes by 

 the differences in the number of external gill openings, in sharks 5 to 7 

 on each side, whereas in the bony fishes there is a single external gill 

 opening. The gills of bony fishes are covered by the operculum. The 

 upper lobe of the caudal fin is longest. 



The sharks of Venezuelan waters are fully described and keyed out 

 to species in "Fishes of the Western North Atlantic" by Dr. H. B. 

 Bigelow and William C. Schroeder (Mem, Sears Foundation Mar. 

 JRes. No. 1, pp. 59-576, figs. 6-106, 1948). It is not considered neces- 

 sary here to report upon them in detaU, since all my Venezuelan 

 specimens were studied by those authors. 



