Anomalous Snakes. 461 



e) -f- f) Algiers. 



Postoculars : R 3, L 2, normal 2. 

 g), h) 4- i) Algiers. 



Temporals: ß 1 + 3, L 1 -f 2. 

 j) k) 1) Algiers. 



Temporals: R 1 + 2, L 1 + 3. 

 m) Algiers. 



First right lower labial fused with the anterior chin-shield. 

 n) Algiers. 



Lower labials : R 4, L 5. 

 o) Algiers. 



Upper labials : R 7, L 6, 3rd -|- 4tli entering eye in both 

 cases. 

 p) Algiers. 



19 rows of scales, 21 or 23 normal, 

 q) r) Vallerange, Heraült 1835. 

 Lower labials : R 4, L 5. 

 s) Vallerange, Herault 1835. 

 Temporals : R 1 + 2, L 1 + 3. 



Tropidonotus validus (Kennicott). 

 a) Matamoros, Mexico. 



Postoculars : R 3, L 2, normal 2 or 3. 



Tropidonotus fasciatus (L.). 



a) Monterey, Mexico, Speyer 1901. 



2 superposed loreals on the right side, on the left a Single 

 one as normal. 



b) Martinique, Ackermann 1836. 



Temporals: R 1 + 3, L 1 + 2, normal 1 + 1 or 1 -}- 3. 



Tropidonotus tigrimis Boie. 



a) India, Frank 1892. 



Upper labials : R 8, 4th -f 5th -|- 6th entering the eye, 

 L 7, 3rd + 4th + 5th entering the eye, normal 7, 3rd 

 -\- 4th -|- 5th entering eye. 



Tropidonotus taxispilotus Holbr.. 



a) North America, Lerot 1856. 



Temporals : R 2 + 3, L 2 -|- 2, normal 2 + 4 or 5 (or 1 + 3). 



