BirLOM^FATIKA. 335 



Stated to resemble D. puppensis, Blaiiford, in form and size, 

 but readily distiiiguisbed by its line close costulatioii, by tlie 

 roundness of the aperture and tlie thinness of the peristome. 



ol4. Diplommatina silvicola, Godwin- Austen. 



jbtjilommntina siln'eol<i, Godwin-Austen, Land & Freslnv. JMoll. 



India, i, 1S8(), p. 178, pi. 4o, ligs. 3, 3 a, (var.) tigs. 5, 5 r^ 

 Diplommalina {Endiplomindtina} si/vicolcr, Kobelt tt Mijllendorf}', 



Nachr. Dents. Malak. Ges. xxx, 1898, p. 138 ; id.. Cat. Pueum' 



1899, p. 58. 

 Diplommatiitn {Diplommatma) si/uiciJa, Kobelt, Das Tieneicli 



Lief. 1(), 1902, p. 446. 



Orvjinal description : — " iShell somewhat depressedly ovate, not 

 rimate ; sculpture, regularly well-marked distant costulation ; 

 colour pale sienna-brown ; spire conic, sides convex, apex rather 

 blunt; whorls G, rounded, the last rather small, penultimate the 

 most swollen, constriction in middle and above the a])ertnre ; 

 aperture vertical, circular: peristome double and solid, coluiiiellar 

 margin subvertical, tooth strong. 



'' Major diam. 1*3, alt. axis 2-2 mm.'' 



Hah. India: Jenta liajuma Peak (5127 ft.), Xortb Cachar 

 {^Godmin- Austen) . 



"I obtained only six specimens of this shell, in the dense lofty 

 forest of the highest part of the Xorth Cachar Hills. It approaches 

 D. aiisteni in its general form, but is more depres.sed, and its 

 sculpture is very defined." {Godwin-Austen.) 



A dwarf form, measuring only 1-7 mm. in height, was also 

 found in the Jatinga Valley, North Cachar Hills. 



515. Diplommatina sperata, Blanford. 



Diplomnudiiut sperata, Blanford, .L A. S. B. xxxi, 18(i2. p. 143- 

 Pfeiffer, Mon. Pueum. Suppl. 2, ISG-'), p. 10; God win- Austen' 

 .LA. S.J}, xxxvii, 1868, p. 84, pi. 4, tigs. 1, la- Theobald^ 

 op. cit. xh, part 2, 1872, p. 330 ; llanley & Theobald. Concli. 

 Ind. 1876, p. xii : Tlieobald, Cat. Sliells P.rit. India, 1876, p. 42 ; 

 Nevill, Hand List, i, 1878, p. 284; Godwin-Austen, Land 'v: 

 Freshw. Moll. India, i, 1886, p. 179, pi. 46, figs. 5, ba. 



l)ipl'»mnatinn {Eiuliph>mmatina) sperala, Kobelt & Miillendoril, 

 Nachr. Deuts. Malak. Ges. xxx, 1898, p. 1.38 ; id.. Cat Pueum' 

 1899, p. r,S. 



J)iplo)nniatinu [Diphwimaiina) .yterata, Kobelt, Das Tierreicli 

 Lief. 10, 1902, p. 446. 



Original description: — "Testa dextrorsa, non rimata, ovato- 

 conica, subfusiformis, solidiuscula, pallide cornea, subremote 

 verticaliter costulata. Spira conica, apice acuta, sntnra impressa. 

 Anfr. 6| convexi ; antepenultimus major, tumidus ; ultimu.s antice 

 vix ascendens. Apertura verticalis, subtus antice sinuata, late 

 auricularis, plica columellari valida munita ; perist. subduplex, 



