79 



REPTILIA: SERPENTES: COLUBRIDAE * "^ DENDROPHIDION 



DENDROPHIDION Fitzinger 



1843 Dendroph i dion Fitzinger, Systema Reptilium: 26. Type-species: Herpetodryas dendrophis Schlegel. 

 1851 Dendroph i dium Cope ( in error for Dendroph i dion Fitzinger), Proc. Acad. Nat. Sc i . Phila., 1860: 



561. 

 1855 Cacocalyx Cope, Trans. Amer. Phil. Soc, 18: 2O5. Type-species: Drymob i us percar Inatus Cope. 



Distribution: Mexico; Central America; northern South America. 



Content: Eight species. 



Comment: This genus is currently under revision by one of us (Peters), and the arrangement shown 

 here, which reflects the current state of the literature, will be rather thoroughly changed upon 

 completion of the review. 



Key to the species Clave de especies 



1. Subcaudals fewer than 175 2 1. Subcaudales menos de ^75 2 



Subcaudals more than 1/5 dendroph i s Subcaudales mas de 175 dendroph i s 



2. Dorsal pattern of stripes, spots or cross- 2. Dibujo dorsal con cintas, manchas, barras 



bands 3 transver sales 3 



Dorsum generally unicoloi 6 Tono general unicolor, sin dibujo 6 



3. Without broad, dark paravertebral stripes 4 3" Sin cintas paravertebrales anchas y oscuras 4 



With broad, dark, paravertebral stripes Con cintas paravertebrales anchas y oscuras 



b i V i ttatus b i v i t ta tus 



4. Distinct transverse dark bands 5 *• Con barras transversales, oscuras y anchas 5 



Double row of dark spots on each side of mid- Con una serie doble de manchas oscuras en cada 



dorsal line boshell i lado de la I'nea vertebral boshell i 



5. Anal divided percar inatus 5- Placa anal dividida percar inatus 



Anal entire v i n i tor Placa anal entera yjn i tor 



6. Keels on more than middorsal scale row 7 6. Escamas quilladas en mas filas que la fila 



Only middorsal scales with keel, and only mediodorsal 7 



posteriorly on body pauc icar Inatus Solo la fila mediodorsal es quillada en la 



parte posterior del cuerpo pauc icar inatus 



7. No keels on first three rows of dorsals ] . Sinquillasen las primeras tres filas de 



brunneus dor sales brunneus 



AH dorsals keeled, weakly on first row Todas las filas quilladas, d^bilmente la 



dark i i pr i mera dark i i 



DENDROPHIDION BIVITTATUS (Dumeril, Bibron and Dume'ril^ 



I854 Leptoph i s b i -vi ttatus Dumeril, Bibron and Dumeril, Erp. Gen., 7: 54O. Type-locality: "New 



Grenada". 

 I865 T.[ ropidonotus j subradiatus Jan, Arch. Zool. Anat. Fis., 3: 227. Type-locality: Colombia. 

 1872 Herpetodryas tetrataenia Gunther, Ann. Mag, Nat. Hist., (4) 5: 23. Type-locality: Bogota, 



Colomb ia. 



Distribution: Highlands of Colombia. 



DENDROPHIDION BOSHELL I Dunn 



1944 Dendrophidion boshelli Dunn, Caldasia, 2 (lO): 475. Type-locality: Volcanes, Municipio de 

 Caparrapi, Cund i namarca, Colombia, 25O m. 



Distribution: Known only from type locality. 



