1871.] F. Stoliczka — Notes on Terrestrial Mollusca. 217 



Eecently Major Beddome has found both land shells and reptiles 

 with unniistakeable Malabar affinities on the Goleonda hills near 

 Vizagapatam and Mahendragiri hill near Ganjam. On a former 

 occasion, J. A. S. B., 1867, p. 199, I called attention to the pecu- 

 liar isolation of Rucervus Duvaucelli, (the Barasingha deer,) Gallus 

 ferrugineus and the Saltree (Shorea robusta) just below Pachmari in 

 the Denwa valley, but this is a case of an outlier of the Bengal 

 fauna, not of that inhabiting Malabar. Mr. Hume (Scrap Book, 

 I, p. 297,) records the occurrence of Spizaetus Nipalensis on the Pach- 

 mari hills, and (J. A. S. B., 1870, p, 117,) of Otocompsa fuscicau- 

 data on Mount Abu, and I have little doubt but that other Hima- 

 layan or Malabar forms accompany them. 



Notes on terrestrial Molltjsca from the neighbourhood of 

 Moulmein, (Tenasserim Provinces), with descriptions of 

 new species, — by Dr. F. Stoliczka. 



(With plates XV— XTX.) 



[Continued from p. 177.] 



Fam. Helicidae. 



This family includes the stylommatophorous (stalk-eyed) species 

 usually called Helix, and which do not possess a mucous gland at 

 the upper termination of the foot. The jaws are usually ribbed, and 

 the teeth shorter, and stouter, than in the Zonitid^e. I shall note 

 two genera, Plectopylis and Trachia, 



Genus. Plectopylis, Bens. 

 (See pi. xv, and its explanation.) 

 This name was proposed as a sub-genus of Helix in Ann. Mag. 

 N. H., 3rd ser., vol. v, p. 244. Benson gave a description of the 

 animal of PI. achatina, (Ann. and Mag. N. H., 3rd ser., iv, p. 95), and 

 pointed out (ibidem, vol. vi, p. 98) the characteristic differences of 

 the shells, referred by him to Plectopylis, as compared with Corilla, 

 (Atopa of Albers, O. Rivolii and others). The anatomy of the 

 animal of Plectopylis indicates a good generic distinction from allied 

 forms. I cannot, however, say how far the peculiarities, to which 

 I shall presently refer, agree with the Ceylonese Corilla, but a 



28 



