288 



Mr. H. A. Biylis on some 



SfMirnt*. The ovejector itself measures 065 mm. from the 

 vulva in a forward direction, ending anteriorly in an oval 

 clinmber into which the vagina opens dorsallj by a narrow 

 canal with thick walls. At a point 0*95 mm. from the vulva 

 the vagina bends back upon itself towards the posterior end. 

 The precise course of the uteri has not been traced, but they 

 appear to run back nearly as far as the anus, and tlien turn 

 forward again, the most anterior coils extending to witiiiu 

 1"6 mm. of the oesophageal bulb. The ova contain coiled 

 embryos, and measure 15 fix 62'5yLt. 



3. Thelazia depressa, sp. n. (Figs. 5-7.) 



Host : (?) Mangos \_Crossarchus'] fasciatus. 

 Locality. (?) Morogoro. 



In the same tube with the numerous specimens of Suhulnra 

 just described there occurred a pair, male and female, of a 



s m p 



Tlu'lazia ih'pe-'sa. Head of female; lateral view. 



/p., lateral papilla; vi.c, wall of mouth-capsule ; s.m.p., siibmedian 



papilla. 



form which appears to belong to the genus Thelazia. The 

 usual habitat of the worms of this geims is the orbital reo-ion 

 of birds and, more rarely, of mammals. It is possible that 



* C. 1{. .'-'oc. Biol. Taris, ii. (1914) p. 154, figs. 2, 4. 



