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. clathratula Pfr., iii, 161. 



puteolus Bens. 

 P. fultoni G.-A., viii, 296. 



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

 P. plectostoma Bens., iii, 160. 



prodigium Bens. mss. 

 P. macromphalus W. Blf., iii, 160. 



P. laomontana 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. polyptychia Mlldff., J. B. 

 [xiv, 272. 



P. trochospira Mlldff. J. B., xiv, 



[273. 



P. schlumbergeri Mori., iii, 166. 

 P. joviaMab., viii, 156. 

 P. villedaryi Anc., viii, 157. 

 P. phlyaria Mab., viii, 158. 

 P. fimbriosa v. Mart., iii, 158. 



v. emoriens Gred., iii, 158. 



v. nana Mlldff, iii, 158. 

 P. murata Hde., iii, 159. 

 P. stenochila Mlldff., iii, 159. 



P. pettos v. Mart., iii, 156. 

 P. oglei G.-Aust., iii, 159. 

 P. serica G.-Aust., iii, 159. 

 P. coarctata Mlldff. Nachrbl. '94, 



[104. 



P. pulvinaris Gld., iii, 157. 

 P. jugatoria Anc., iii, 166. 

 P. reserata Hde., iii, 166. 

 P. raultispira Mlldff, iii, 158. 

 P. cutisculpta Mlldff, iii, 158. 

 P. invia Hde., iii, 165. 

 P. secura Hde., Fl. Bleu, 141. 

 P. laminifera Mlldff, iii, 165. 



Subgenus TRAUMATOPHORA Ancey, 1887. 

 Traumatophora ANC., Conch. Excb., 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 lamellae 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- 

 pylism 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. 



