140 



PROCEEDINGS OF THE NATIONAL MTJSEVM. 



VOL. 50. 



i;i 



Female 11 to 20 mm. long with a maximum diameter in the region 

 of the vulva of 190 to 215 /* (500 to 600 /i according to Dujardin; 

 850 /A according to Bremser's figure as noted by 

 Dujardin). The body diminishes in diameter quite 

 abruptly posterior of the vulva and terminates in a 

 conical tail with a slight constriction just anterior 

 of the tip. The head diameter is about 35 /i. The 

 esophagus is 520 to 605 p. long with a maximum 

 thickness near its posterior extremity of 60 to 80 p.. 

 The nerve ring is 235 to 260 /t from the anterior ex- ^ 

 tremity. The straight simple intestine ends in a 

 narrow conical rectum 60 to 85 /u, long. The anus is 

 138 to 190 /x from the tip of the tail. The vulva is 

 very slightly salient and is 1.1 to 1.9 mm. from the 



tip of the tail. 



/z^. 



9./.^ 



-»./- 



w 



The vagina is 

 short, about 170 

 /x long and ex- 

 tends forward 

 to meet the me- 

 dian portion of 

 the ovijectors. 

 The combined 

 length of the 

 muscular por- 

 tions of the 

 Avell- developed 

 ovijectors is 

 •130 to 470 IX. 

 1'he ovijectors 

 and uteri are 

 divergent (fig. 

 183), the pos- 

 terior uterus 

 and ovary ex- 

 tending to a 

 point near the 

 jmus, not turn- 

 ing forward as Molin (1861fir) shows it. The eggs 

 are ellipsoidal, 98 to 106 jx long by 50 to 58 }x thick, 

 and are in the morula stage when oviposited. 



Hosts. — Oryctolagus cunuidus (Lepus eunicuhis) , Lepus europaeus 

 ( Lepus timid us) . 

 Location. — Stomach; occasionally in small intestine. 



-<?<• 



Fig. 182.— Graphidium strigosum. Bursa, ven- 

 tral VIEW. e. d., EXTERNO-DORSAL RAY; C. I., 



externo-lateral rays; I. v., lateko-ventral 



rays; m.Z.,MEDIO-LATERALRAYS; p. /., POSTERO- 

 LATERAL ray; v. v., ventro-ventral rays. 



Fig. 1S3.— Graphi- 

 dium strigosum. 

 Posterior ex- 

 tremity of fe- 

 male, ovj., Ovi- 



JECTOR. 



