138 



PROCEEDINGS OF THE NATIONAL MV8EVM. 



VOL. r.o. 



Fig. 178.— Nematodi- 

 rus n e o t o m a 

 Posterior ex- 

 tremity OF FEMALE, 

 X 170. 



Fig. 179. — Nematodirus neo- 

 TOMA. Vulva. X 91. 



front of this point. The body is commonly bent at 

 this point. The combined length of the muscular 



portions of the ovijectors 

 (fig. 180) is 900 to 955 ^. 

 The eggs are 115 to 190 n 

 by 80 to 90 ix in diameter. 



Hosts. — Neotoma mexi- 

 cana fallax^ Neotoma 

 desertorum^i N eotoma 

 fioridana haileyi^ Neo- 

 toma cinerea rupicola. 



Location. — Small in- 

 testine; rarely in stom- 

 ach. 



Localities. — San Aca- 

 cia, Siebert's ranch (Mesa 

 County ) , Mack, Cedar 

 Point, and Pawnee 

 P)uttes, Colorado. 



Type material. — No. 

 16131, U.S.N.M. (Bureau 

 of Animal Industry hel- 

 minthological collection). 



The material fro m 

 whicii the above species 

 is described was col- 

 lected from host material 

 preserved in alcohol by 

 Mr. E. K. Warren, of 

 Colorado Springs. The 

 places of collection are 

 located as follows: One 

 near the northeast corner 

 of Colorado ; another 

 near the middle eastern 

 part of Colorado; an- 

 other near the middle of 

 the southern boundary; 

 and two near the middle 

 of the western boundary. 

 It may be safely pre- 

 dicted that this species 

 will be found on ade(iuatc examination of species of Neotoma any- 

 where in Colorado and probably in Neotoma anywhere. 



Fig. 180.— Nematodirus neotoma. Ovijector.s. X 91. 



