MOLLUSCA OF INDIA. 77 



Hemiplecta ittee, Theobald. (Plate LXXXII. figs. 1-1 d.) 



Helix liter, Theob, J. A. S. B. 1859, p. 309 (from Moulraain) ; 

 Pfr. Mon. Hel. vol. v. p. 127 ; Hanley, Conch. Ind. p. 27, pi. Iviii. 

 figs. 7, 8. 



Hemiplecta (sec. E) uter, Theob. Supp. Cat. p. 22 (Moulmain aad 

 hills west of Tonghu). 



Locality. Mule-it Range, Tenasserim (0. Limhorg). 



With a very small lobe over the mucous pore. A short right 

 shell-lobe, as well as a short narrow left sheU-lobe. The left neck- 

 lobe in two separate parts. 



The odontophore (figs. 1 «-l d)\ii, as regards the type of teeth, like 

 that of Hemiplecta humplireysiaiia ; the centrals being straight-sided, 

 triangular, simple, succeeded by curved unicuspid teeth passing to 

 outer smaller teeth of bicuspid form, arranged thus : — 



77 . 38 , 10 . 1 . 10 . 38 . 77 

 125 . 1 . 125 



The jaw (fig. 1) has no central projection, thus again like the 

 above-named type form. 



To return to Semper's First Group, or the Indian species he placed 

 in Xesta, I have long considered it necessary to place them in a new 

 genus, of which I take as the type species Helix solata, Eenson, from 

 the Nilgiri Hills, on the slopes of which range and at their base many 

 similar forms occur, some of which may be expected to range further 

 south to Ceylon. 



Genus Nilgiria. (Plates LXXX.-LXXXII.) 



[Indicated in Vol. I. Part VI. p. 253 (1888).] 



Animal. The mantle-edge long and narrow, following the peri- 

 stome ; no shell-lobes. Right dorsal lobe small ; left dorsal lobe 

 long, narrow, and continuous. Sole of foot not divided. Opening 

 of mucous pore extends to the sole of the foot; overhung by a 

 blunt process. Amatorial organ large ; retractor muscle of male 

 organ attached to a long diverticulum. Spermatheca short. 



NiLGiRiA soLATA, Bs. (Plate LXXX. figs. 1-4 a.) 



Heliv solata, Benson, A. M. N. H. 1848, vol. ii. p. 159 ; Pfr. Mon. 

 Hel. vol. iii. p. 67, vol. iv. p. 170; R,eeve, Conch. Icon., Helix, 

 fig. 741. 



Helix menkiana, Reeve, Conch. Icon., Helix, no. 591, t. 106. 



Helix menkiana, var., Chemn. ed. nov.. Helix, t. 133. figs. 3-4. 



JSIanina solata, Gray, Cat. Pulm. p. 84. 



Nanina (Rhysota) solata, Pfr. Vers. p. 121. 



Hemiplecta'! .<iolata, W. T. Blf., A. M. N. H. Feb. 1863. 



Helix solata, Hanley, Conch. lud. p. 14, pi. xxviii. fig. 6 (this 

 only gives the shell viewed from the back). 



