Anomalous Snakes. 459 



b) Cambridge, Cambridge Museum, Mass. U. S. A. 1876. 

 Upper labials : E 8, 4th -|- 5th entering eye, L 7, 3rd + 



4th entering eye, normal 7, 3rd -j- 4th entering eye. 



c) Cambridge, Cambridge Museum, Mass. U. S. A. 1876. 

 Upper labials : E 7, 3rd -\- 4tli, L 8, 4tli -f- 5th entering eye. 



Tropidonotus saurita (L.). 



a) Martinique, Ackeemann 1876. 

 Anal divided; normal, anal entire. 



b) New Orleans, Hasslauer 1846. 



Upper Labials : E 7, 3rd -j- 4th entering eye, L 8, 4tli -f- 5th 

 entering eye, normal : 8 (rarely 7) upper labials 4th + 

 5th (3rd -f- 4tli) entering the eye. 



c) Mexico, Weber 1866. 



Upper Labials : E -j- L 7, the 4th alone entering the eye. 



Tropidonotus natrix (L.). 



a) Triest, Conte Camer ata. 



Lower labials E 5, L 4, normal 4 or 5. 



b) Bosnien, Eolle 1893. 



Upper labials : E 8, the 5th being obliquely divided, 3rd -\- 

 4th entering the eye, L 7, 3rd + 4th entering eye. 

 Normal : 7, 3rd -f 4th entering the eye. 



c) Elsass. 



Upper labials : E -|- U 6, 3rd -|- 4th entering the eye. 

 dj Elsass. 



Upper labials : E + L 5, 3rd -\- 4th entering the eye. 



e) Elsass. 



Upper labials : E 6, 3rd + 4th, L 7, 3rd -\- 4th entering 



the eye. 

 Postoculars: E 3, L 2, normal 2, 3 or 4. 



f ) Elsass. 



Upper labials : E -[- L 6, 3rd + 4th entering the eye. 



g) Triest, Conte Camerata. 



Upper labials : E 7, 3rd -f 4th, L 6, 3rd -]- 4th entering 

 the eye. 

 h) Elsass. 



Postoculars : E 4, L 3. 



