306 



THE ANIMAL PARASITES OF MAN 



9 12 cm. in length and is viviparous ; the embryos measure 

 0-28 mm. in length and 0*007 mm - i n breadth. 



Filaria equina is a frequent parasite of horses and asses ; it inhabits 

 the abdominal cavity and from there occasionally invades the female geni- 

 talia or even the liver ; it is found more rarely in the pleural cavity or 

 in the cranium. The statement that it also occurs in the subcutaneous 

 connective tissue is probably due to confusion with Filaria h&morrhagica, 

 RailL, 1885 (Fil. multipapillosa, Cond. et Drouilly, 1878). Finally, small 

 filariae occur frequently in the eye of the horse ; it is, however, doubtful 

 whether they belong to Filaria equina. 



Treutler found a filaria in the enlarged bron- 

 chial lymphatic gland of a patient suffering from 

 phthisis. It measured 26 mm. in length and 

 carried two small booklets (spicules) at one end. 

 Blanchard mentions another case from Geneva, 



FIG. 204. Filaria equina. Anterior end, magnified 

 'After Railliet.) 



tural size. 

 Railliet.) 



Brera a third and v. Linstow a fourth. As 

 shown by the synonyms a few authors consider 

 this form to be a distinct species, which is hardly 

 Fi G .203.Fiiana pro b a ble ; others again consider it to be Stron- 



eqmna. Left, male ; r 



right, female. Na- gylus apri, which is still less likely, as the pos- 

 terior extremity of male strongylidae and Treutler 

 exhibited a male specimen carries a bursa which 



can hardly be overlooked, and which is neither mentioned nor 



illustrated by the author. 



LITERATURE. 

 TREUTLER, F. A. Observ. patholog.-anat. auct. ad helminthol. humani corporis 



continentes. Lipsiae, 1793. 



BLANCHARD, R. Traite de Zool. med., 1890, ii., p. 16. 



BRERA Mem. phys.-med. sopra i princ. vermi del corp. umano. Crema, 1811, p. 31. 

 v. LINSTOW. Beob. an neuen u. bek. Nemathelm. (Arch. f. mikr. Anat. u. Entw., 



I9O2, lx., p. 222.) 



DEUPSER. Z. Entw. d Fil. papillosa. Zool. Anzg., 1892, xv., p. 129. 



Exp. Unters. iib. d. Lebensgesch. d. Fil. pap. In.-Diss., Breslau, 1894. 



