16 



Mil. L. A. LANTZ ON 



11. BOIGA TRIGONATUM Schneid. 



2 specimens : — 



Length of head and body 



Length of tail 



Number of supralabials 



Number of infralabials 



Temporal shields 



Number of rows of dorsal scales 



Number of ventral plates 



Number of pairs of infracaudals .. 



510 480 mm. 



115 108 „ 



8/9, the 3rd, 4th, and 5th entering 

 11/12 [the orbit. 



2 + 3 2 + 1+3 

 2+3 1+3+3 

 21 



222 221 

 86 84 



12. Taphrometopon lineolatum Brandt. 



1 specimen. Length of head and body 790 mm. Length of tail 

 375 mm. 8 supralabials, the 4th and 5th entering the orbit. 

 11 infralabials. 2 + 1/2 + 3 temporal shields. 12 rows of dorsal 

 scales. 181 ventral plates. 121 pairs of infracaudals. 



13. Zamenis rhodorhachis Jan. 

 2 specimens : — 



Length of head :ind body 



Length of tail 



Number of supralabials 



Number of infralabials 



Temporal shields 



Number of rows of dorsal scales 



Number of ventral plates 



Number of pairs of infracaudals ... 



715 630 mm. 

 265 230 „ 



9, the 5th and 6th entering the 

 10 [orbit. 

 2 + 5 to 8 irregular ones. 

 19 



227 226 

 121 117 



These specimens have no reel stripe along the back. 



14. Zamenis diadema Schleg. 

 4 specimens : — 



Length of bead and body 



870 



830 



825 . 



770 mm. 



Length of tail 



215 



190 



215 



(140) „ 



Number of supralabials 



11/12 



1213 



10/11 



12/13 



Number of infralabials 



. 1113 



12 



13/14 



12 



Number of rows of dorsal scales .. 



27 



29 



27 



27 



Number of ventral plates 



225 



244 



217 



234 



Number of pairs of infracaudals . . 



7e 



83 



83 





Behind the prefrontals a row of 3 accessory shields ; in one- 

 specimen the median one is fused with the right inter- 

 nasal. 3 (t + t) exceptionally 4 + \ + frenals. 2 prseoculars. 



Supralabials more or less separated from the loreals and entirely 

 separated from the orbit by a row of small shields, the first of 

 which may reach the postnasal ; there are 2 or 3 shields between 

 the supralabials and the loreals, 3 to 5 between the former and 

 the orbit, and, following them, 2 or 3 postoculars. Temple 

 covered with small irregular shields. 



