178 LAXD AND FRESHWATER 



and separated from the retractor muscle. Tfie spermatheea is 

 elongate, and contains three spermatophores beautifully preserved; 

 the walls of the sac were of necessity much stretched and transparent. 

 The uterus and ovo-testis do not call for any special notice. 



The spermatophore (figs, le & If) recalls that of Austeiiia gigas. 

 The flume is very long with a bunch of fine bifid delicate spines at 

 its basal end ; for about two-thirds of its length it is straight-edged 

 and spineless, six spines then occur at very equal distances apart, 

 up to the junction of the flume and capsule, which is long and 

 cylindrical, terminating in a thin whi])-like appendage, but the cap- 

 like end of the capsule seen in other species is not present in this 

 one. The most striking feature of this spermatophore is the large 

 single antler-like process at the terminal end of the flume, having 

 six points, and these again bifid, very similar in this respect to 

 A. gigas. 



On page 1331 gave five examples of spermatophores then known. 

 We must now add another, No, 1 a, as a variety of No. 1, viz. : — 

 At base of capsule and anterior end of the flume, the intermediate 

 portion being straight-edged with a few spines on one side ap- 

 proaching the capsule. 



Jaw (fig, 1 h) semicircular, with a central projection. 



The radula formula is 



+ 18.2.9, 1.9.2. 18 -f 

 -H 29 . 1 . 29 + 



Unfortunately it was broken when extracting it, and the marginals 

 could not be counted. 



Central tooth tricuspid, admedian teeth bicuspid, of usual form 

 in Macrochlamys. 



For a long time the position that shells of this form should occuj^y 

 has been one of considerable doubt ; it was placed provisionally in 

 Macroclilamys. Taphrospira proves to be a very distinct genus, 

 not only by shell-character, on which Dr. W. T. Elanford founded it, 

 but also still more conclusively on the character of the animal. It 

 is like Macroclilamys only as regards the right shell-lobe ; the ample 

 left shell-lobe resembles that of species of Austenia and Sophina. 

 The absence of the araatorial organ is the strongest point which 

 differentiates it from both MacrocJdamys and Austenia. The penis 

 is more like that of Ausienla than typical Macrochlamys, so also is 

 tlie spermatophore. 



The animal of Taphrospira had never been sent home before last 

 year. In doing so, Mr. G. Rogers has rendered a very great service 

 to all malacologists interested in the land-shells of the Indian 

 Region ; and this Avas not the only interesting species he collected. 



