59 



CHIRONIUS 



11. Lacking lateral dark stripe on tail 12 



With lateral black stripe on tail mont icola 



11. Sin cinta oscura laterocaudal 12 



Con cinta negra a los lados de la cola 



mont icola 



12.Fewertlian 180 caudals- 

 More than I50 caudals- 



13 



-mult i ventr is 



13. Anal divided 14 



Anal si ngle laev icoll i s 



14. Head not brownish red; lacks median yellowish 



stripe 15 



Head brownish red with median yellowish stripe- 

 f lavol i neata 



12.Menos de 180 caudales 13 



Mas de I9O caudales mult i ventr i s 



13. Anal dividida 14 



Anal en t era laev i coll i s 



lA.Cabeza no pardo rojiza sin cinta mediana 



amarillenta 15 



Cabeza pardo rojiza con una cinta mediana 

 amar i 1 lent a f la vol i neata 



IJ.Light vertebral stripe present- 

 Light vertebral stripe absent-- 



-16 IJ.Con cinta clara vertebral- 

 -I7 Sin cinta clara vertebral- 



-16 



-17 



l6.Fewerthan four rows of keeled scales in both 



sexes ear ina tus 



At least four scale rows keeled in both sexes — 

 quadr icar i na tus 



l6.Menos de cuatro hileras de escamas quilladas en 



ambos sexos car i na tus 



Por lo menos cuatro hileras de escamas qui- 

 lladas en ambos sexos qua dr i car i natus 



ly.Keeled scales with light spot at base, giving 

 appearance of yellow vertebral line; no zig-zag 

 line down median ventral surface of tail; 



subcaudals 108-120 f lavop ictus 



Light vertebral line continuous, not made up of 

 yellow spots; zig-zag line down median ventral 

 surface of tail; subcaudals 128-154--b icar i natus 



ly.Escamas quilladas con mancha clara en la base, 

 con aspecto de I'nea vertebral amarilla; sin 

 1 fnea en zigzag a lo largo de la superficie 

 media ventral de la cola; subcaudales 108-120 

 f lavop ictus 



L Tnea vertebral clara continua, no formada por 

 manchas amarillas; con iTnea en zigzag a lo 

 largo de la superficie media ventral de la cola; 

 subcaudales 128-154 b icar i natus 



CHIRONIUS BICARINATUS (Wied) 



1820 Coluber b icar i natus W i ed, Reise nach Brasilien, 1; 181. Type-locality: Lake near Rio Jucu, five 



leagues south of Cidade Espirito Santo, Espirito Santo, Brazil. 

 1555 Ch i ron i us b i car i natus — Bailey, Occ. Pap. Mus. Zool. Univ. Mich., 571= 8. 



Distribution: Espirito Santo and eastern Minas Gerais, Brazil, southwest of Misiones and R'o 

 Uruguay, Provincias Chaco, Corrientes, Salta, Formosa, and Entre Rios, Argentina; northwestern 

 Uruguay. 



CHIRONIUS CARINATUS (Linnaeus) 



1758 Coluber car inatus Linnaeus, Systema Naturae, Ed. 10: 223. Type-locality: "Indiis". 



1798 Col [_ uber J ( Ch i ron i us ) Donndorff, Zoologische Beytrage, 3 — Amphibien und Fische: 2O5. Type- 

 locality: Not given. 



1845 Coluber Spixii Hallowell, Proc. Acad. Nat. Sc i . Phila, 1845: 241. Type-locality: South America. 



1845 Coluber Pickerinqii Hallowell. Proc. Acad. Nat. Sc i . Phila., I845: 242. Type-locality: South 

 Amer ica. 



I85I Herpetodryas car i natus var. v i ncent i Boulenger, Proc. Zool. Soc. London, I85I: 355- 

 Type-locality: Saint Vincent Island. 



I856 Zaocys torn i er i Werner, Verb. Zool.-Bot. Ges. Wien, 46: I5, pl. 1, fig. 1. Type-locality: 

 Suma t ra . 



1522 Ch i ron i us car i natus — Ruthven, Misc. Publ. Mus. Zool. Univ. Mich., 8: 65. 



Distribution: Central America; tropical South America; Trinidad; Guadalupe; San Vicente I. 



CHIRONIUS CINNAMOMEUS (Wagler) 



1824 Na tr i X c i nnamomea Wagler, in Spix, Sp. Nov. Serp. Bras.: 20, pl. 6, fig. 1. Type-locality: 



Amazonian forest, Brazil. 

 1964 Ch i ron i us c i nnamomeus — Hoge, Mem. Inst. Butantan, JO (156O-62): 53- 



Distribution: Surinam and Lower Amazonian region of Brazil. 



