NO. 2131. 



NEMATODE PARASITES OF RODENTS— HALL 



147 



shorter than the anterior. The anterior ovary extends bej^ond the 

 middle of the body and forms a loop in the posterior third. The 

 eggs are oval, relatively large, 80 to 85 /* long and 45 ju, 

 thick, in the morula stage at oviposition. 



Hosts. — Otomys irroratus, Otomys irroratus tropi- 

 ccdls^ Funisciiirus carruthersi. 

 L ocation. — Intestine. 

 ' Locality. — Natakiva, Africa. 



The inadequate description of the bursal rays leaves 

 the present generic position of this species in doubt. 

 The description of the uteri, however, indicates that it 

 belongs in the Trichostrongylinae within the limits of 

 that subfamily as defined in this paper. 



Fig. 196.— Steon- 

 gylus minutoi- 



STRONGYLUS MINUTOIDES Parona, 1907. 



Spicules. E n - 

 LARGED. After. 

 Parona, 1909. 



DEs. Anterior Specific diagnosis. — Trichostrongyl 

 Enlarged. Body white, filiform, diminishing in 

 After Parona, Two cervical alae, with 



1909. • i. 1 



integral margins, pres- 

 ent (fig. 196). Mouth with two 

 salient teeth. Esophagus elongated, its 

 length equal to about one-sixth that of 

 the entire body and without dilation. 

 Intestine straight throughout its 

 course. 



Male 4 mm. long. The testes extend "'^f -^JXI 

 forvrard almost to' the level of the 

 esophagus. The large bursa has two 

 lateral lobes sustained by large lateral 

 lays. The medio-lateral and postero-lateral rays are 

 close together and parallel. The spicules are equal, 

 long, thin, and straight (fig. 197). Males found 

 alone or twisted in several turns around the body of 

 the female. 



Female 7 to 8 mm. long. Tail conical, not very 

 long, and pointed (fig. 198). Vulva a little anterior 

 of the anal aperture and not prominent. Uteri di- 

 vergent. Eggs large and oval, with thin shell and 

 very little developed at oviposition. 



Host. — Arvicanthis pulcheUus. 



Location. — Intestine. 



Locality. — Ibanda, Africa. 



inae (p. 123) : 

 size anteriorly. 



Fig. 198.— Strongt- 

 lus minutoides. 

 Posterior e x - 

 tkemity of fe- 

 male, lat- 

 eral VIEW. En- 

 larged. After 

 Parona, 1909. 



