326 Alexander G. Euthven, 



Scale rows, 21—23—21—19—17; upper labials. 8; Iower labials, 

 9—10; preoculars 1, with a small subocular; postoculars 2; ventrals 

 175; subcaudals 57. The tail is brokeii at the tip but it is evident 

 that not miicli more than the tip is wanting-. The total length is 

 552 mm of which the tail constitntes 98 ram. 



The specimen was found under a log on the margin of a pond 

 in a grove on the savannah. 



Oxyrliojjus petolarius (Linnaeus). 



A Single specimen taken at Cuatotolapam. 



The specimen obtained is referable to Boulenger's variety D. 

 as the bod3' is banded with red and black, the latter forming annnli 

 (connected with each other ventrally) on the tail. There are, 

 however, but 23 annuli on the body, and the red areas are a little 

 broader than the black. The first light band (on the occiput) is 

 yeliow. 



The scutellation of this individuals is as follows: dorsal rows 

 19 — 17; Upper labials 8; Iower labials 10 — 11; preoculars 1; post- 

 oculars 2; temporals 2—3 (the Iower first temporal on each side 

 divided transverselj^) ; ventrals 198; subcaudals 89. 



Nothing could be learned of the habits of this snake. The 

 specimen was captured by a peon somewhere on the Hacienda de 

 Cuatotolapam. 



Mrythi'ola/iHpt'us ImperlaJis (Baird et Girard). 



2 specimens found on the margin of a pond on the praii'ie at 

 Cuatotolapam. 



The specimens obtained need little description as they are 

 quite typical. It sliould be mentioned that there are only four 

 Iower labials in contact with the anterior cliin shields (cf. Boulenger).^) 



The scutellation is as follows: dorsal rows 19—17, upper labials 8; 

 Iower labials 9; ventrals 125 and 129, subcaudals 77 in one, the tail 

 being broken in the other. The specimens are about the same size. 

 and the one with the complete tail measures 360 mm. 



The two specimens obtained were the only ones seen. They were 

 found under logs on the edges of ponds on the savannah. Günther -) 



1) Cat. of Snakes in Brit. Mus., Vol. 3, p. 206. 



2) in: ßiol. Centr.-Amer., p. 162. 



