Anomalous Snakes. 463 



Zamenis mucosus (L.). 



a) Bengal, Paris Museum 1837. 



Temporals: E 2 + 2, L 2 + 3, normal 2 + 2. 



Zamenis gemonensis (Laue.). 



a) Morea, Museum Paris 1829. 



Lower labials: R 5, L 4, normal 5 (rarely 4). 



Zamenis liippocrepis (L.). All from Algiers. 



a) Temporals: R 3 -f 2, L 2 + 2, normal 2 + 3 or 3 + 3. 

 Upper labials: R 10, L 9, normal 8 or 9 (rarely 10). 

 Lower labials : R 5, L 4, normal 4. 



b) Postoculars: R 2, L 3, normal 2. 

 Upper labials : R 9, L 10. 



c) Praeoculars: R 1, L 2, normal 1 or 2. 

 Suboculars : R 3, L 4, normal 3 or 4. 

 Upper labials: R 9, L 10. 



d) Temporals: R 3 + 4. L 2 + 3. 



e) Praeoculars : R 2, L 1. 

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



f) Praeoculars: R 1, L 2. 

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



g) Praeoculars: R 1, L 2. 

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



h) Upper labials : R 9, L 10. 

 i) Temporals : R 2 + 4, L 2 + 3. 

 k) Praeoculars: R 1, L 2. 



Lower labials : R 5, L 4. 

 1) Upper labials : R 8, L 9. 

 An auxiliary shield is interposed between the 3rd and 4th upper 

 labials, the loreal, the praeocular and the first subocular in many 

 specimens, it is present on the left side only in specimens a, e, f, 

 and on both sides in specimens c, d, g, h, i, j. 



Drymobius hifossatus (Raddi). 



a) Rio Janeiro, Museum at Cambridge, Mass. U. S. A. 



Upper labials : R 7, 3rd + 4th entering eye, L 9, 4th + 5th 

 entering eye, normal 8, 4th + 5th entering eye. 



