Occasional Papers of the Museum of Zoology 3 



posteriorly ; other head shields normal for the genus ; all of the 

 dorsal scales keeled, hut the first row less strongly than the 

 others. 



Total length. 558 millimeters; tail length. 130 millimeters; 

 tail, therefore. 0.233 of total length. Sex. male. 



The general color ahove is a very dark hrown. Crossing 

 this, more or less transversely, are ahout 13 light yellowish 

 hands, one scale wide. These are more or less mottled with 

 darker, especially posteriorly, where, also, they are mostly in- 

 terrupted on the median dorsal line. The helly is rather heav- 

 ily checked with black, especially posteriorly, and the under 

 side of the tail is almost uniformly black. The head is dark- 

 brown above, light brown on the sides, and immaculate light 

 yellow beneath. The labials are almost entirely unmarked, and 

 the chin shields, gulars. and anterior ventrals are quite so. On 

 the postoculars, temporals, and last two upper lal)ials are a 

 few mottlings representing the lower ])order of the light post- 

 ocular band of A'^. fasciata fasciafa. 



Remarks: Thirty-one specimens have l)een examined, rep- 

 resenting the following localities : Butler and Dunklin coun- 

 ties. ]\Iissouri ; Miller and JefTerson counties, and W'heatley, 

 Arkansas; Jefferson County. Mississippi; Jackson County, and 

 New Orleans. ]>elair. Prairie Mer Rouge, and Avery Island, 

 Louisiana ; Brazoria, Cook, and Falls counties, Dallas, and 

 Angelina River, Texas; and "Xew Orleans to Galveston." 

 Published records that appear to refer definitely to this form 

 name the following additional localities: A^ictoria, Tehuacana 

 Bottoms. Laguna Lake, and Demings Bridge (Matagorda 

 County), Texas; I lot vSprings and Texarkana, Arkansas; and 

 Stoddard County, ^Missouri. (See references in the 

 synonomy.) 



