BIHANQ TILL K. SV. VET.-AKAD. HANDL. BAND 27. AFD. IT. N:0 5. 13 



Measuremeiits and numbers of tlie shields of the specimeus. 



Catalogue number 



1979 9. 



1980 $. 



Total length 



Length of the tail 



Length of the head to the hind 

 margin of the parietals .... 



Greatest breadth of the head . . . 



Longitudinal diameter of the eye . 



Distance from the eye to the snout 



Number of ventrals 



» » subcaudals 



1470 mm, 



520 ^ 



24 > 

 16 * 



8 * 

 11 » 



175 



141 



1430 mm. 

 470 » 



22 » 

 14 » 



7,2 » 

 10 » 



170 



135 



Leptophis flagellum. Spec. nov. 



Plate II, fig. 12, 13, and 14. 



Maxillary teeth 27, solid; the two posterior enlarged and 

 separated from the small subeqiial anterior ones by a short 

 interspace. Mandibular teeth small, niimerous, about 30, de- 

 creasing in size behind. Head depressed, distinct from the 

 neck. The snout broad and flattened. Eye moderate, half 

 the length of its distance from the tip of the snout. Pupil 

 round. Rostral twice as broad as deep, just visible from 

 above. Two internasals, as long as their greatest breadth at 

 the hind margin. Two prsefrontals, scarcely broader behind 

 than in front, a little longer than the internasals. Trontal 

 elongate, pentagonal, slightly narrower behind, a little longer 

 than its distance from the end of the snout, but distinctly 

 shorter than the parietals. Nostril lateral, pierced in the 

 centre of an oblong entire nasal. Loreal elongate, 27^ as 

 long as deep, one prseocular, not reaching the frontal, narro- 

 wed at the base. Two postoculars; temporals 1 + 2; eight 

 upper labials, fourth and fifth entering the eye; lower labials 

 eight on the one, ten on the other side; the middle ones con- 

 siderably greater than the posterior and anterior. Four or 



The tail is mutilated. 



