172 COLIUS, COLYMBUS. 



2 2. COLIUS. Spec. 7. 



capensiS) (coly,) exterior tail-feathers white out- 

 side ; body cinereous whitish beneath. 

 See MS. P. 



3 3. COLUBER. Spec. 176. 



vipera, (egyptian viper,) subferruginous, spotted 

 with brown ; beneath whitish ; tail short, mu- 

 cronate. About sixteen inches long. Supposed 

 to be the asp of Cleopatra. 



constrictor, (black snake,) shining black, body 

 long and slender ; abdominal scales 186, cau- 

 dal 92. 



Remark. Most of our snakes are of this genus, 

 See MS. P. 



24. COLUMBA. , Spec. 82. 



migratoria, (common pidgeon,) orbits naked, san- 

 guineous ; body cinereous ; breast rusty red. 



earoliniensisf (mourning dove,) body reddish-cine- 

 reous, reddish beneath ; orbits blue. 



canadensis, (american turtle-dove,) body greyish- 

 brown, whitish beneath ; primary quill-feathers 

 yellowish at the tip ; tail feathers white at the 

 apex. 12 or 13 inches long, 

 See MS. P* 



2 6, COLYMBUS. Spec. 25. 

 glacialiS) (loon, speckled diver,) head and neck 

 violaceous black ; a white interrupted band on 

 the chin and upper part of the neck. Some- 

 times three feet long. 



cristatusj (grebe,) fuscous, white beneath ; head 

 rufous ; collar black ; secondary quill-feathers 

 white. About 23 inches lone. 

 See MS, P. 



