96 



REPTILIA: SERPENTES: COLUBRIDAE 



** 



DRYMARCHON 



ORYMARCHON FItzinger 



1843 Drvmarchon Fitzinger, Syst. Rept.: 26. Type-species; Coluber corais Boie. 

 1853 Georgia Baird and Girard, Cat. N. Amer. Rept.: 92. Type-species: Coluber couperi Holbrook. 

 1867 Geoptyas Ste indachner, Sitz. Math. -Naturwiss. Kl.Akad. Wiss. Wien, 55 (l) ; 27I, pi. 3, figs. 1-]. 

 Type-species: None designated. 



Distribution: From southern United States to northern Argentina. 



Content: One widely ranging species. 



DRYMARCHON CORAIS (Bole) 



1827 Coluber corais Boie, I s i s. von Oken, 182/: 537* Type-locality: America. 

 I855 [ Drymarchon corais j — Stejneger, North Amer. Fauna, 14: ]0, 



Distribution: From United States to northern Argentina. 



Content: Eight subspecies, three ( erebennus Cope, couperi Holbrook and orizabensis Ouges) extra- 

 1 im ! tal. 



Key to the subspecies 



1. Dorsal pattern uniformly black 2 



Dorsum with some pattern, not uniformly 



black 3 



2. Tail and venter not reddish cora is 



Tail and venter reddish rub i dus 



3. Dorsal pattern light brown at least 



anteriorly 4 



Dorsal pattern black with irregular grey 

 transverse bands, dim or indistinct 

 anteriorly, more prominent posteriorly 

 and on tail marqar i tae 



4. Dorsal pattern uniform light brownish 



un icolor 



Dorsal pattern in dark brown more intensive 

 on posterior third of body and entire 

 ta i 1 melanurus 



Clave de subespecies 



1. Dorso enteramante negro 



Dorso no enteramente negro- 



2. Cola y vientre no rojizos — 

 Cola y vientre rojizos 



— cora IS 

 -rub i dus 



3. Disefio dorsal pardo claro por lo menos 



anteriormente 4 



Diseno dorsal negro con bandas transversas 

 irregulares grises, difusa indistinta 

 anteriormente, mas prominente en la parte 

 posterior y en la cola marqar i tae 



4. DiseRo dorsal en pardo claro uniforme 



un icolor 



Disefio dorsal en pardo oscuro mas intense 

 en el tercio posterior del cuerpo y toda 

 la cola melanurus 



Drymarchon cora is cora is (Soie) 



I867 Geoptyas f lavi ventris Ste i ndachner, SItz. Math. -Naturwiss. Kl. Akad. Wiss. Wien, 55 (l)' 

 272, pi. 4, figs. 1-4. Type-localities: Cijyaba, Mato Grosso, Brazil, and Rio Vaupes, 

 which may be either Colombia or Brazil (where it is spelled Uaupes). 



I855 [ Drymarcho n cora is cora is j — Stejneger, North Amer. Fauna, 14: 70* 



1923 Phrynonax anqulifer Werner. Ann. Naturhist. Mus. Wien, 36: l62. Type-locality: Joinville, 

 Braz il. 



Distribution: Amazonian and Paraguayan basins; from Venezuela to Argentina; Trinidad and 

 Tobago. 



Drvmarchon cora is marqari tae Roze 



1359 Drvmarchon marqaritae Roze, Nov. Cient. Mus. Hist. Nat. La Salle, Venezuela, Ser. Zool., 



25: 1. Type-locality: Near San Francisco de Macanao, Isla Margarita, Venezuela. 

 1964 Drymarchon corais marqaritae- — Roze, Mem. Soc. Cien. Nat. La Salle, Venezuela, 69: 222. 



Distribution: Known only from western Margarita Island, Venezuela. 



