NOTE ON THE LAND MOLLUSC A OF BOMBAY. 327 



inata^ ap'ice amt'mscul a^ anfr. 5 5, Dkan. maj, 8, m/n. 7, alt. 4 mill." 

 Tlie Bombay shell lins neither a snbtnrbinnte spire nor a sharpish apex ; 

 it has but 5 whorls, and the measurement of an average specimen is 

 about 11 milleraetros in major diameter, 9i in minor, and 5| in altifuile. 

 I have collected in some numbers on the Nilgiris, at Pykara and 

 Avalanche, a shell that precisely corresponds to Pleiflfer's description of 

 H. pen'oiteti both in form and measurements, Ijut which is not the same 

 as the Bombay species. B'or the latter, in 1880 (Joun. As. Soc. Bono-. 

 Vol. XLIX, Pt. 2, p. 195, pi. ii, fio-. 9) I proposed the name" f 

 Macrocfdamijs (?) 'platiiehlamys,'^' and I mentioned that I had obtained 

 this species, or a shell which I was unable to distinguish from ii 

 from (Jhampanir near Broach to the North, and from the Wynaad to 

 the South. 



Specimens of this Mollusk and of other Bombay species laave recently, 

 by the kindness of Mr. Phipson (and I believe of Mr. Peile) been 

 sent to me, and the aninnil has Ijeen dissected by Col. Godwin-Austen, 

 to whom we are indebted for many additions to our knowledoe of 

 Ind'an snails. The result, I hope, will shortly be published. I he 

 animal proves to be somewhat diiferent in several respects from typical 

 forms of MacrochlamijS, such as the Bengal shell conmionlv, but 

 incorrectly, known as M. vitrinoides ( M. indlca of Benson, M. 

 pseudoviinnoides of Nevill), and must be placed in a separate 

 sub-genus. M. pedina also exhibits striking peculiarities of its 

 own. 



I do not think that either MacrocJdamys tenulcula or J/. Platy- 

 chlamys can be referred to Mlcrocystina, a sub-generic group founded 

 on M. rinkii^ an Andaman snail with a peculiar notch in the columella. 

 It is true that Mr. G. Nevill, in his Hand-h'st of Mollusca in the 

 Indian Museum, Calc':tta, referred numerous small forms of Macro- 

 chlamrjs, and amongst them M. perrottetl and M. tenuicvla to Micro- 

 cystis of Beck, but in this he was certainly in error, and moreover 

 Microcystis and Microcyslina are by no means the same. I think it 

 possible that Mr. Peile has taken his nomenclature in part from Nevill's 

 Hand-list, because he adopts the specific name tennicola, which was a 

 mistake or misprint of Nevili's, instead of tenuicula, the term originally 

 applied by A. Adams. 



* ■nXoir-j!^ broad ; Xxa^vj^ a cloak or mantle. 



