144 W. TheohM— Notes on the land [Xo. 3, 



by me from Benson under this name were certainly closely allied to tbe 

 last. In the Conchologia Indica, however, a very different shell is figured 

 (Plate CLII, figs. 1, 4,) and one which seems barely distinct (save in size 

 only) from H. cassida, Hutton, also given on the same Plate. My coadju- 

 tor, Mr. Hanley, purchased most of Benson's types, but has most unfortu- 

 nately not said if the figure is taken from one of them. 



My own impression is, that H. monticola, B. is a near ally of H. 

 scutella, B. and that the monticola figured in the Conchologia Indica is a 

 mere immature specimen of H. cassida^ Hutton. It is true the shell is said 

 to be in one ' dull' in the other ' lustrous', but this may be the result of 

 its condition, as in H. fleoningii, the lustrous surface of the shell is covered 

 with a dull epidermis, which in scutella is wanting, and I was much struck 

 with the presence of this dull epidermis, as it is covered by the mantle ; the 

 shells of other Zonitidcd under such circumstances being usually lustrous. 



• H. CASSIDA, Hutton. 



A single adult specimen of what I consider this species was taken by 

 me under a stone above Uri. Two young shells (one of them forwarded to 

 me by Mr. Lydekker) also seem to belong to this species, though the mouth 

 is rounder and deeper than in the adult {vide Conch. Indica, Plate CLII, 

 figs. 2, 3). This species might almost be ranged in Faryplianta and 

 would seem to be rare as I have only seen the above three specimens. 



Vallonia ptjlchella, Miill. 



V. COSTATA, Mull. 



The higher ranges. 



FErTICICOLA HTJTTONI, Pfr. 



"Widely distributed, but individuals do not seem anywhere numerous. 



PEEONiEUS c(ENOPiCTrs, Hutton. 

 Widely distributed and individuals numerous. In the North-western 

 Punjab, this species harbours under stones, and is variable in size. 



NAPiErS CAJS-DELAEIS, Pfr. 



N. domina, B. This is a common species being found about Mari and 

 in various places in Kashmir, usually above 6000 feet, but occasionally 

 lower. Sinistral shells are most numerous, but dextral ones also occur not 

 rarely. My largest sinistral shell measures 35'6 x 92 and my smallest 

 27'7 X 8*7 mm. The dextral shells are smaller, ranging from 33 x 8*8 to 

 24 X 8*5 mm. 



The shells vary somewhat in a large series, in tumidity and in the 

 attenuation of the spire, and even in the number of whorls, a remark which 

 applies to all the species of the genus, and proves the risk of creating new 

 species from single examples. 



