272 Veterinary Medicine. 



OTHER SCLEROSTOMATA. 



From his Egyptian experience L,ooss records additional species 

 of sclerostoma and their close allies. The following may be 

 named : 



Sclerostoma Edentatum. The Toothless Scleeostome. 

 This worm the name of which is rather paradoxical is but three- 

 fourths the length of the S. Equinum {Male, 23 to 26 mm. by 1.5 

 mm. ; Female, 33 to 36 mm. by 2 mm.), and is relatively thicker. 

 The mouth capsule is beaker shaped, not ellipsoidal. It is com- 

 mon at Cairo. 



S. VuLGARE is still smaller {Male, 14 to 19 mm. by 0.7 mm. ; 

 Female, 23 to 24 mm. by i mm.). The tail is relatively more 

 slender and pointed than the equinum. 



Under the name of CyaThostome (cup-mouthed) he names 12 

 varieties including the Tetracanthum ; under Triodontus (three- 

 toothed) two individuals ; and under Gyalocephalus (hollow- 

 head), one specimen. 



Filaria Papillosa. Filaria Equina. This long, delicate, 

 thread-like worm, diminishing slightly toward the ends, especially 

 the posterior, has usually a clear refrangent silky aspect by which 

 it is readily recognized. The globular head is terminated by a 

 small mouth surrounded by eight conical papillae arranged in op- 

 posing pairs. The male is 2 to 4 inches long, with tail rolled in 

 three or four turns of a spiral, and furnished with 4pre-anal and 4 

 post-anal papillae on each side, and membraneous alae enclosing 

 the two unequal spicula. The female 3 to 5 inches long, has a 

 loose spiral tail, bearing three papilla a terminal and two lateral 

 ones. Vulva close to the mouth. 



Ovum an elongated ellip.sis. Ovoviviparous. 



Habitat. This worm is often found in the peritoneum of 

 solipeds, and Rudolphi claims that he found it in the intestine. 

 It is also a common parasite of other serous cavities as the 

 pleura and arachnoid, and in the aqueous humor of the eye. It 

 has also been found in the connective tissue beneath the periton- 

 eum, and in the diaphragm. 



Pathogenesis. As an intestinal parasite, no harm has been at- 

 tributed to them, and when present singly in the serous cavities 

 the same may be said of them. When very numerous, however, 



