ANGUILLULID^E 



377 



Family 

 Phy Salop terida . . . 



A scar Ida 



Sub-family 

 Ascarincp . 



Oxyurida 

 Mermithidce 



Genus 

 Physaloptera 



A scar is 



Toxascaris 

 Belascaris ... 



L agocheilasca ris 

 Oxyuris 

 Mermis 

 (Agamomermis] 



Species 

 P. caucasica. 

 P. mordens. 

 A. lumbricoides. 

 A. sp. 

 A. texana. 



A. maritima. 

 T. limbata. 



B. cati. 



B. marginata. 

 L. minor. 

 O. vermicularis. 

 M. hominis oris. 

 Ag: restiformis. 



Family. Anguillulidae. 



Genus. Rhabditis, Dujardin, 1845. 



Buccal cavity elongated, with lips. Its chitinous wall uniformly thick. Lateral 

 lines absent. Males with bursa. 



Rhabditis pellio, Schneider, 1866. 



Syn. : Pelodera pellio, Schn., 1866; Rhabditis genitalis, Scheiber, 1880; 

 Rhabditis pellio, Schn., 1866. 



Males 0*8 to 1*05 mm. in length ; females, 0*9 to 1*3 mm. in length. 

 The posterior extremity of the body of the male has a heart-shaped 

 bursa, and seven to ten ribs on each side ; the bursa may, however, 

 be lacking. The spicules measure 0*027 to 0^033 mm. in length, but 

 are never quite alike. The posterior extremity of the female is long 

 and pointed ; the vulva lies somewhat behind the middle of the body, 

 the ovary is single, the eggs are oval, 60 JJL by 35 /JL. 



This species was found in Stuhlweissenburg by Scheiber in the acid urine 

 (containing albumin, pus and blood) of a woman suffering from pyelonephritis, 

 pneumonia and acute intestinal catarrh ; the observer was able to convince himself 

 that the Nematodes which were found during the whole period of the illness lived 

 in the vagina, and were evacuated with the urine. 



Oerley proved that this species had long been known ; during 

 its larval stage (Anguillula mucronata, Grube, 1849) it lives in earth- 

 worms ; in its adult stage it lives in decomposing matter in the soil. 

 By introducing individuals of this species into the vagina of mice, 

 Oerley succeeded in obtaining infection and multiplication (facultative 

 parasitism). These Nematodes must in some such way have got into 

 the vagina of Scheiber's patient. 



Two other cases described by Baginsky and Peiper probably 

 belonged to the same or a nearly related species. 



