The Blind Snakes and Dwarf Boas 



Yellowish brown or gray above; abdomen yellow. 



RUBBER BOA, C. 



Distribution. Oregon to Lower California; east- 

 ward to Nevada. 



Detailed descriptions : 



THE ROSY BOA 

 Lichanura roseofusca, (Cope) 



Body stout, tail short, blunt and slightly prehensile. Head 

 rather long and but slightly distinct from the neck. Eye large, 

 with elliptical (cat-like) pupil and surrounded with a ring of 

 7 to 10 scales. Several pairs of shields near the snout; remainder 

 of head covered with scales. Scales of the body in 39 1045 rows. 



Colouration. Bluish gray or brownish above, sometimes 

 with traces of three brownish stripes. Abdomen red or yellowish, 

 mottled with brown. 



Dimensions. Attains a length of about a yard, of which 

 the tail occupies about four inches. 



Distribution. Southern California and Arizona. 



Habits. Apparently nothing is known of the habits of 

 this rare snake. 



THE THREE-LINED BOA 



Lichanura trivirgata, (Cope) 



Eye larger than that of the preceding. 



Colouration. Pale yellow or brownish, with three vividly 

 defined dark brown stripes or bands, extending from the snout 

 to the end of the tail; the central of these bands is four scales 

 wide and those on each side of it are five scales wide; the bands 

 are separated by spaces three and a half scales in width. 



Distribution. The original specimens were found in swamps 

 among the mountains near Cape St. Lucas, Lower California. 



THE RUBBER BOA SILVER SNAKE TWO-HEADED 



SNAKE WORM SNAKE 



Cbarina botta* (Blainville) 



Size moderate. Form very stout. The tail is almost as 

 blunt as the head, hence one of the popular names two-headed 



* A single specimen was described by Prof. Cope as C. brachyops; it 

 differs from bottce in the absence of a loreal plate, bringing the postnasal 

 in contact with the preocular and in the rear prefrontal forming a part of 

 the orbit. 



2TT 



