110 ZOXITIVJE. 



Size : maj. diam. 10-0, min. 8-2 : alt. axis 4-0 mm. 



Locality. Cherra Poonjee and in the valley to the eastward. 



This shell was also found at Jawai, in the Jaintia Hills. I have 

 named it after Sir Joseph Hooker, who describes so well in his 

 4 Himalayan Journals ' the deep valley under Cherra Poonjee.] 



c. Upper surface transversely plicate or ribbed. 



165. Macrochlamys ? plicifera, Elf. J. A. S. B. 1880, 2, p. 197. 



Nanina plicatula, Blf. J. A. S. B. 1870, 2, p. 13, pi. 3, fig. 7 ; 

 Godwin- Austen, J. A. S. B. 1875, 2, p. 2 ; Pfr. (Helix) Mon. Hel 

 vii, 1876, p. 126; H. $ T. (Helix) C. I. 1876, pi. 28, fig. 1 : nee 

 N. plicatula, Martens, Nach. cl Mai. Ges. 1869, p. 149. 



Shell subobtectly perforate, depressed, almost lenticular, thin, 

 translucent, yellowish horny, with dull waxy lustre, concentrically 

 and subpapillosely striated above and below, plicate near the 

 periphery ; spire low, conoidal, suture very slightly impressed ; 

 whorls 5|, almost flat abo\ T e, the last much broader, angulate and 

 nodosely plicate at the periphery, swollen truncate, the plications 



Fig. 46. Macrochlamys plicifera. 



oblique and gradually disappearing on both upper and lower 

 surface away from the outer edge ; aperture oblique, roundly 

 lunate ; peristorne thin, basal margin arcuate, columellar curved, 

 vertical and reflected above. 



Major diam. 22^, min. 19|, height 10 mm. 



Hab. Satunga, JN". Cachar Hills, on limestone rocks (Godwin- 

 Austen}. 



[Animal pale brown, mottled very evenly with umber over the 

 head and sides, a distinct line of darker colour down the centre 

 of the back ; moderately long gland at extremity of foot, which is 

 rather truncate. Two parallel lines run from mantle to the oral 

 tentacles, about 1| inch in length. 



I obtained a large number of this species alive ; no reference is 

 made to the presence of shell-lobes in my note-book, in which 

 there is, besides, a pencil sketch of the animal's head as far back 

 as the dorsal lobe. It is therefore very doubtful if it should be 

 placed in this genus.] 



