BIHANG TILL K. SV. VET.-AKAD. HANDL. BAND 27. AFD. IV. N:0 5. 17 



with any previously described form. Thongh exfcernally 

 resembliiig Oxyrliopus the form of the teetli does not allow its 

 arraiiging under this genus. Even from Arrhyton it differs 

 on account of the pupil and the presence of hvo large fångs, 

 but in other respects it agrees so well with this genus and 

 especially with A. tceniatiim, Gntr. that I do not think I make 

 any mistake when referring it to this genus. In the Cat, of 

 Sn. the J.rr%fow-species are, described as being yellowish with 

 a brownish head and three dark longitudinal lines. If the 

 mentioned brown spöts I find in these specimens are remains 

 after longitudinal lines instead of transversal ones, which 

 latter is presumed in the diagnosis as in my opinion more 

 probable, the colour also would correspond with the typical 

 colour of the g-enus. 



Measurements and nuinbers of the shields of the specimens. 



Oatalo2;ue uumber. 



1191. 



1192. 



Total length 



Length of the tail 



Length of the head to the hiud margin of the 

 parietals 



Greatest hreadth uf tlie head 



Longitudinal diameter of the eye 



Distanee from the eye to the snout 



Number of ventrals 



» » subcaudals 



Tropidodipsas longicaudata. Spec. nuv. 



Plate II, fig. 9. 10, and 11. 



Maxillary teeth 15, solid, in -an interrupted series, rather 

 small, a little decreasing in size behind. Mandibular teeth 

 about 14, decreasing in size behind. Head very distinct from 

 neck; eye moderate, the horizontal diameter as long as the 

 distanee to the nostril and P/a as long as the distance to the 

 snout; pupil vertical. Rostral twice as long as broad, just 

 visible from above. Two internasals a little broader than 

 long, considerably smaller than tbe prtfifrontals. Nostril 



2 



