MOLLUSCA OF IJJDIA. 287 



in many respects it is intermediate between the above two species, 

 though all three are easily recognisable and quite distinct. 



" Type of Helic. respUndens, diani. max. 22, lat. 14, crass. 8 mil. 

 "Four specimens of this interesting form were found at 

 Sawaday. Dr. Anderson also brought back a single specimen (in 

 spirit) from Bliaiiio (5000 ft.) which clearly shows the animal to 

 be of a light pinkish colour, very sparsely dotted with black specks, 

 except on the mantle-lobes and caudal extremity, which are 

 thickly dotted ; in this specimen the spire of the" shell only is 

 covered by the aniuial, though the mantle-lobe has no doubt 

 shrunk." 



Owmg to the kindness of Mr. N. Annandale, the present 

 Superintendent of the Indian Museum, I have received the type 

 specimen of A. resjjUndens, Nevill, preserved in spirit by Dr. Jobn 

 Anderson. I had never seen this animal before, but it has 

 enabled me to identify a specimen collected in 1899 by Mr. Wm. 

 Doherty, at the Euby Mines in Upper Burma, as the sanje 

 species. The shell has been removed fi'om the type-specimen, 

 but it could not have been more than 17 mm. in major diameter, 

 and is therefore young. The shell of the Ruby Mine specimen is 

 26-5, larger than the type shell recorded by Nevill to be 22. The 

 anatomical details will be made from the Kuby Mine specimen, so 

 there will be no necessity to touch the type, which goes back lo 

 the Indian Museum, Calcutta. 



It is a true Austenia (animal, figs. 2, 2 a), although distinct from 

 A. gigas, the type of the genus— outwardly in the coloration— 

 gigas being dark coloured greenish grey ; resplendens being (jale 

 ochraceous. The peripodial grooves are much more distinct in 

 gigas {vide Plate LA^ figs. 3, 3 a), in respJetidens they hardly show 

 ut all. Interesting difference is found in the shell-lobes in 

 gigas, the right is distinctly separate from the left aboAe the 

 ivspiratory orifice. In resphndem (Plate CXXX. figs. 2, 2a) they 

 are uiiited by a narrow band, taking the form of these lobes as 

 presented in Girasia, for even a short cicatricial line is visible— 

 thus resplendens shows a most remarkable approach and link with 

 G. magnifica of Yunnan (PI. LVI. figs. 1-5 a). The left shell- 

 lobe laps well over the edge of the peristome, and is continuous 

 to the posterior margin where it unites with the right shell-lobe. 

 The foot is very short behind, much shorter than in A. gigas, the 

 extremity truncate, with a linear gland ; the major portion of' the 

 foot as far back as that situated below the apical portion of 

 the shell contains the internal organs of the animal. On removing 

 the shell, the visceral sac is seen to end in a short curved hook 

 (fig-. 2/), the last remnant of a more pronounced coil in the pro- 

 genitors of this genus. 



In order to better preserve this rare specimen the different 

 parts of the generative organs were removed separately, and they 

 •were in a perfect state of development. They are similar to 

 those of A. gigas, somewhat more attenuate. In the male organ 

 (fig. 2 c) the main sheath from the generative aperture is a very 

 PART XI. 2 b 



