80 • HEUCID^. 



136. Helix (Planispira) pilidion, Benson. 



2 Pegu ; ex c. As. Soc, Bengal. 



4 East of Moulmcin ; coll. Dr. F. Stoliczka. 



1 Tena?serim; coll. A. Davison, Esq. 



4 Cambodia; ex c. A. Morelet, Esq. 



137. Helix (Planispira) cestus, Benson. 



6 Sylhet (type); ex c. As. Soc, Bengal. 



20 Assam ; coll. Major H. H. Godwin- Austen and ex c. Dr. T. Oldbam, 

 and Dr. F. Stoliczka. 



138. Helix (Planispira) bolus, Benson. 



[ = iT. tourannensis, Soul.] 



30 Pagan, Ponsee, Sanda ; coll. Dr. J. Anderson. 



7 Thyet Myo ; ex c. Dr. F. Stoliczka. 

 7 Locality ? ; ex c. As. Soc, Bengal. 



4 Cochin-China : ex c. A. Morelet, Esq. 



Sub-Genus TBOCHOMORPHOIDES, nov., (type H. acris). 



Helix conultis, Dr. Ed. von Martens, from Sumatra is a third 

 species of this interesting and distinct sub-genus. 



139. Helix (Trochomorplioides) acris, Benson. 



6 Naga Hills ; coll. W. Roberts, Esq. 



9 Khasi Hills; coll. Major H. H. Godwin-Austen. 



4 Dafla Hills; coll. Major H. H. Godwin-Austen. 



140. Helix (Trochomorplioides), n. sp. 



1 Buket Pondong, Perak ; coll. Dr. Edniond Townsend. 



Sub-Genus ACAVUS, Mtf. (type H. humastoma). 



141. Helix (Acavus) tisemastoma, Linn. 



30 Ceylon ; coll. H. F. Blanford, Esq., and G. Nevill, Esq. 



142. Helix (Acavus) melanotragus. Born. 



10 Ceylon ; ex c. G. Nevill, Esq., and H. F. Blanford, Esq. 



143. Helix (Acavus) superba. Pfeiffer. 



7 Ceylon; coll. Hugh Nevill, Esq. 



144. Helix (Acavus) grevillei, Pfeiffer. 



3 Ceylon; coll, Hugh Nevill, Esq. 



