44 NERODIA. 



Head and eyes propoi /lonally larger than in iV". iaxispilota. Verti- 

 cal plate subpentagonal, and more elongated than in N'. taxisjnlota. 

 Occipital plates also much more developed and broader. Inframaxil- 

 lary longer. Proportion between the length of the tail and that of 

 the body about the same as in jY. taxispilota. The rows of scales 27 

 in number, and carinated ; the scales themselves proportionally much 

 larger than in N. taxispilota. The lateral row especially diiFers much 

 in that respect. 



Ground-color reddish brown, with three series of black subquad- 

 rangular blotches, forty-one in number, the twenty-fifth opposite the 

 anus. They embrace transversely six or seven rows of scales, instead 

 of seven or ten as in N. taxispilota. Longitudinally they cover three 

 scales on the anterior portion of the body, and two posteriorly as in 

 iV". taxispilota. The intermediate space, however, is greater than the 

 blotches themselves, embracing one scale more. The lateral series 

 are contiguous to the dorsal one, and alternate regularly with it. 

 The blotches extend on seven lateral rows, embracing three scales, 

 while the intermediate space embraces four of them. Beneath yel- 

 lowish white, with small and irregular brown blotches scattered along 

 the sides. 



Prairie Mer Rouge, La. 144+1.70.27. 35.8. Jas. Fairie. 



" 141+1.63.27. 33.7. " 



