FILARIA : HOMINISORIS, LABIALIS, EQUINA 305 



This parasite was obtained in West Virginia from the urethra of a 

 young man, aged 20, who for a few days previous to expelling the worm 

 passed cloudy and sanguineous urine. 1 



13. Filaria hominis oris, Leidy, 1850. 



Fourteen cm. in length, 0*16 mm. in breadth; mouth terminal; 

 posterior extremity obtuse and provided with a recurved hook. 

 The parasite was " obtained from the mouth of a child." : 



14, Filaria labialis, Pane, 1864. 



The parasite measures 30 mm. in length ; the anterior extremity 

 is pointed ; the terminal oral aperture is surrounded by four 

 papillae ; the anus opens 0*5 mm. in front of the posterior extremity ; 

 the vulva is 2*5 mm. in front of the anus ; the uterus is double ; the 

 anterior one passes with convolutions forward to tjie cephalic end ; 

 the posterior one is directed backwards and remains rudimentary. 



Extracted from a small pustule on the inner surface of the upper lip. 3 



15. Filaria equina (Abildg.), 1789. 



Syn. : Gordius equinus, Abbild., 1789 ; Filaria equi, Gmelin, 1789 ; 

 Hamularia lymphatica, Treutler, 1793 ; Tentacularia subcompressa, Zedder, 

 1800; Fit. papillosa, Rud., 1802; Fit. hominis bronchialis, Rud., 1819; 

 Filaria hominis, Dies., 1851 ; Strongylus bronchialis, Cobb., 1879. 



The body is whitish, filiform, pointed posteriorly. The cuticle 

 presents a delicate transverse striation. The mouth is small, 

 round, and surrounded by a chitinous ring, the border of which 

 carries, at the sides, two semi-lunar lips, and there is on the 

 dorsal as well as on the ventral surface a papilliform process ; 

 behind, corresponding with each submedian ridge, is a papilla. 

 The male measures 6 8 cm. in length, the posterior extremity 

 spiral ; there are on each side four pre-anal and four post-anal 

 papillae ; the spicules are of unequal lengths. The female measures 



1 Leidy, J., "On a Filaria reported to have come from a Man " (Proc. A cad. Nat 

 Sc., Philadelphia, 1880, p. 130). 



-Leidy, J., "Description of Three Filariae " (Proc. Acad. Nat. Sc., Philadelphia, 

 1850, v., p. 117). 



: 'Pane, " Nota su di un elminte nematoide" (Annali dell' Accad. degli aspiranti 

 naturalisti, Napoli, 1864 [3], iv.). 



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