96 U.S. NATIONAL MUSEUM BULLETIN 266 



Suborder SPIROSTREPTIDEA 



KEY TO THE FAMILIES OF SPIROSTREPTIDEA 



1. Size small to intermediate, slender; gonopods relatively simple, 



lacking long, twisted, anterior branches . . . EPIN ANNOLENIDAE 



Size large, heavy bodied; gonopods quite complicated, each with a 



long, contorted, anterior branch SPIROSTREPTIDAE 



Family EPINANNOLENIDAE 



Genus EPINANNOLENE Brolemann 1903, p. 135. 



TYPE SPECIES: Epinannolene pittieri Brolemann, by monotypy. 

 Epinannolene affinis Loomis 1%1, p. 114. 

 TYPE: U.S. Nat. Mus., no. 2649. 

 TYPE LOCALITY: Pina area, Canal Zone. 

 PARATYPE LOCALITIES: Same, and El Valle, Code Prov., Panama. 



Epinannolene bicornis Brolemann 1905, p. 356. 



TYPE: Mus. Nat. Hist. Natur., Paris. 



TYPE LOCALITY: Cariblanco, Costa Rica. 

 Epinannolene caeca Loomis 1964a, p. 120. 



TYPE: Chicago Nat. Hist. Mus. 



TYPE LOCALITY: Barro Colorado Island, Canal Zone. 

 Epinannolene pittieri Brolemann 1903, p. 136 



TYPE: Mus. Nat. Hist. Natur., Paris. 



TYPE AND PARATYPE LOCALITY: Cocos Island, Costa Rica. 

 Epinannolene plana Loomis 1961, p. 116. 



TYPE: U.S. Nat. Mus., no. 2651. 



TYPE AND PARATYPE LOCALITY: El Valle, Code Prov., Panama. 

 Epinannolene robusta Loomis 1961, p. 115. 



TYPE: U.S. Nat. Mus., no. 2650. 



TYPE AND PARATYPE LOCALITY: Cerro Campana, Panama Prov., 

 Panama. 

 Epinannolene sulcata Loomis 1964a, p. 120. 



TYPE: Chicago Nat. Hist. Mus. 



TYPE LOCALITY: West of Finca Palo Santo, near Nueva California, 

 Chiriqui Prov., Panama. 



Family SPIROSTREPTIDAE 



Genus GYMNOSTREPTUS Brolemann 1901, p. 153. 



TYPE SPECIES: Spirostreptus (Gymnostreptus) perfidus Brolemann 

 1901, by present designation. 



