146 PLECTOPYLIS. 



(Parietal vertical lamina single). 



P. shanensis Stol., iii, 162. P. brachydiscus G.-Aust., iii, 162. 



trilamellaris G.-A. P. pseudophis W. Blanf.,iii, 162. 



P. perarcta Blanf., iii, 162. P. nagsensis G.-Aust., iii, 161. 



P. retifera Pfr., iii, 161. P. andersoni W. Blf., iii, 161. 



P. clathratula Pfr., iii, 161. P. plectostoma Bens., iii, 160. 



puteolus Bens. prodigium Bens. mss. 



P. fultoni G.-A., viii, 296. P. macromphalus W. Blf., iii, 160. 



P. laomon tana Pfr., iii, 160. P. munipurensis G.-A., iii, 160. 



P. schistoptychia Mlldff., iii, 165. P. pinacis Bens., iii, 159. 



P. diptychia Mlldff., iii, 158. P. pettos v. Mart, iii, 156. 



P. polyptychia Mlldff., J. B. P. oglei G.-Aust., iii, 159. 



[xiv, 272. P. serica G.-Aust., iii, 159. 



P. trochospira Mlldff. J. B., xiv, P. coarctata Mlldff. Nachrbl. '94, 



[273. [104. 



P. schlumbergeri Mori., iii, 166. P. pulvinaris Gld., iii, 157. 



P. joviaMab., viii, 156. P. jugatoria Anc., iii, 166. 



P. villedaryi Anc., viii, 157. P. reserata Hde., iii, 166. 



P. phlyaria Mab., viii, 158. P. multispira Mlldff., iii, 158. 



P. fimbriosa v. Mart., iii, 158. P. cutisculpta Mlldff., Hi* 158. 



v. emoriens Gred., iii, 158. P. invia Hde., iii, 165. 



v. nana Mlldff, iii, 158. P. secura Hde., Fl. Bleu, 141. 



P. murata Hde., iii, 159. P. laminifera Mlldff, iii, 165. 

 P. Btenochila Mlldff, iii, 159. 



Subgenus TRAUMATOPHORA Ancey, 1887. 

 Traumatophora ANC., Conch. Exch., April, 1887, p. 54. 



Shell disk-shaped, with low spire and open umbilicus; granulate. 

 Whorls 5, regularly increasing, the last constricted behind the aper- 

 ture. Aperture lunar, oblique, with reflexed lip, having within 

 three entering lamella upon the outer lip, marked outside by grooves, 

 no parietal processes. Type P. triscalpta, pi. 41, figs. 26, 27. 



Anatomy unknown. This group and the next differ from Plecto- 

 pylis in lacking transverse internal barriers, but until their soft parts 

 are known they had better be grouped in this place. 

 P. triscalpta v. Mart., vi, 8. Central-southern China. 



v. fraterminor Gredl. J. B. xi, 137. 





