60 HELICIDiE. 



palatal plates also are seen to be much broader than in tlie other 

 species, and the three upper ones are much more oblique, re- 

 sembling in this respect the immature plates found by me in three 

 of the other species. In fig. 16 e a portion of the last whorl is 

 drawn, in which the palatal plates nos. 1, 2, and 3 are shown as 

 they appear through the shell, while fig. 16 6 shows the entire 

 shell from below with palatal plates nos. 3 and 4 shining through. 

 The late Col. Beddome lent me several adult examples of this 

 species for examiuation, one of which is of interest from the fact 

 that it exhibits, in addition to the mature armature, immature 

 plates which are identical in form and position with those I found 

 in an adult shell of Corilla odontophora. With these adult 

 examples was an immature shell with three whorls completed, 



Fig. IG. — Ccrtlla ana.r. 



which is specially noteworthy in that it possesses two sets of 

 immature plates, one near the end of the third whorl, aud the 

 other a little beyond the place where 2?,- whorls have been 

 completed. It may therefore safely be inferred that the plates 

 are not absorbed till after completion of the new ones, and it will 

 be remembered that this is not an isolated case, for two sets of 

 plates have been observed by me in a full-grown specimen of 

 Corilla odontopliora, and Col. Beddome lent me a shell of this 

 last-named species, identical in this respect. He informed me 

 that he collected his specimens of Corilla anax in the Anamullay 

 Hills, in the Coimbatore District of South India, in moist woods, 

 at ^000 feet elevation, where it was very abundant on and under 

 dead logs. 



The specimen shown in fig. 16 is in Mr. Ponsonby's collection. 



70. Corilla gudei, Sylces. 



Corilla gudei, Sykes, Proc. Malac. Soc. London, ii, 1897, p. 234, 

 pi. 16, figs. 8-10 ; Godwin-Au.5ten, Moll. India, ii, 1907, p. 199, 

 pi. 114, fig. 3 (anatomy). 



Original description : — " Size and shape similar to those of 



