Z29 



INCERTAE SEDIS 



LEPTOGNATHUS ANDREI Sauvage 



1884 Leptoqna thus Andre i Sauvage, Bull. Soc. Philom. Paris, (7) 8: 146. Type-locality: New Grenada. 

 1960 Leptognathus andre i —Peters. Misc. Publ. Mus. Zool. Univ. Mich., 114: 212. 



Distribution: known only from locality given for holotype. 



Comment: Placed in i ncertae s ed i s in the Dipsadinae by Peters, loc. cit. 



LEPTOGNATHUS BREVIS Dumeril, Bibron and Dumlril 



I854 Leptoqna thus brev i s Dumeril, Bibron and Dumeril, Erp. Gen., ]: 476. Type-locality: Mexico. 

 1%0 Leptognathus brev i s — Peters. Misc. Publ. Mus. Zool. Univ. Mich., 114: 212. 



Distribution: Unknown, except for vague type locality given by Dumeril, Bibron and Dumeril. 



Comment: This taxon may be synonymous with S i bon nebulata nebulata . according to Peters, Beitr. 

 Neotrop. Fauna, 4, 1564, 49. 



THANATOPHIS PATOQUILLA Posada Arango 



1885 Thanatoph i s pa toqu i 11a Posada Arango, Bull. Soc. Zool. France, 14: JiJ. Type-locality: 



Provincia de Medillin, Colombia, 



Distribution: Known only from type locality. 



Comment: This taxon is not mentioned in Boulenger, Cat. Sn. Brit, Mus., J, I856, or in Hoge, Mem. 

 Inst. Butantan, J2, I965 (l?^^)* '" their reviews of viperid snakes. We presume it belongs to 

 Bothrops . but we are unsure of this. Blanchard, Bull. Soc. Zool. France, I889, 347, suggested it 

 may be a synonym of Bothrops n i grov i r i d i s (Peters). 



UROTHECA WILLIAMSI Roze 



1958 Urotheca will iams i Roze, Breviora, Mus. Comp. Zool., 88: 1. Type-locality: El Junquito, 

 Distrito Federal, Venezuela. 



Distribution: Central part of Cordillera de la Costa, Venezuela. 



Comment: Roze used Urotheca rather than Rhad i naea for this generic taxon, and presumably the 

 species should be transferred to Rhad i naea here. Creation of this new taxonomic arrangement 

 should await completion of review of Rhad i naea by C. W. Myers, and we do not make it here. It is 

 not appropriate to Urotheca unless one considers it congeneric with Rhad i naea . which we do not do 

 here. 



ZAMENIS ARGENT I NUS Brethes 



1917 Zamen is argent inus Brethes, Rev. Soc. Argentina Cien. Nat. Hist., 3' 93> fig- Type-locality: 

 Argent i na. 



Distribution: Uncertain. 



Comment: We have not seen this description, and the data presented are unverified. Werner, 

 S.itz. Math.-Naturwiss. Kl. Akad. Wiss. Wien, Abt. 1, I33, 1924, 34, suggested that the taxon 

 belonged in the genus Ph ilodryas . but gives no reasons for this suggestion. 



