Anomalous Snakes. 467 



Upper labials : R 5, 2Dd + 3rd entering- the eye, L 6, 

 3r(l -|- 4tli entering the eye, normally 5, 2nd + 3rd 

 enteriiig- tlie eye. 



Contia aestiva (L.). 



a) Matamoros, Mexico, Blind 1882. 

 Scales in 17 rows, normally 15. 



Petalognatlms nebulatus (L.). 

 a) (orig-in unknown). 



Upper labials : ß 7, 4tli -j- 5tli entering- eye, L 8, 5th -f- 

 6tli entering- the eye, normal 7 (rarely 8), 4th -|- 5th 

 (5th -|- 6th) entering- the eye. 



Calamaria linnaei Boie. 



a) (origin unknown). 



Upper labials : ß 4, L 5, normally 4. 



Dipsadomorphus dendrophüus (Boie). 

 a) Sumatra, Redemann 1894. 



Scales m 19 rows, normally m 21 or 23. 



Dipsadomorphus irregidaris Meer. 

 a) (origin unknown). 



Anal divided, normally entire. 



Tarhophis fallax Fleischmann. 

 a) (origin unknown). 



Loreal separated from the eye by the praeocular, normally 

 entering the eye below the praeocular. 



Lepiodira annulata (L.). 



a) (origin unknown). 



Subocular on the right side, left side without as is normal. 



PMlodryas aestivus (Schleg.). 

 a) (origin unknown). 



Temporals : R 1 + 2, L 2 + 2, normally 1 + 2. N. B. The 

 right anterior temporal is semi-, the left entirely divided. 



Zool. Jahrb. XVII. Abth. f. Syst. 31 



