iredale: on the genus-name jiartensia. 121 



I have collated all tlie apparent species referred to this genus, and 

 though at first sight the genus appears polyphyletic, no conchological 

 characters can be grasped for differentiation. The extremes such 

 as Martensia percivali, Smith, and Trochonanina germami, Caesar 

 Boettger, seem easily separable, but after careful consideration I feel 

 that it must be tlie part of the anatomist to point out the differences. 

 The names of the species I have brought together may be here 

 noted as a beginning for some African worker. My ignorance of the 

 literature of this fauna prohibits the proposition of a complete list. 

 Lkdoulxia — 



mozambicensis, Pfeiffni-, P.Z.S., 1855, p. 91. 



var. (dbopicta, Martens, v. d. Decken'sReise, vol. iii, p. 56, 1869. 

 var. elatio)\ Martens, Mai. Blatt., toI. xiii, p. 92, 1866. 



ibuensis, Pfeiffer, Symb. Hel. viv., iii, p. 66, 1846. 



Jeni/nsi, Pfeiffer, P.Z.S., 1845, p. 131. 



obUisangula, Martens, S.B. Ges. naturf. Berlin, p. 125, 1895, 



tumidiila, Martens, Monatsbr. wiss. Berl., 1876, p. 256. 



leiicograpta, Martens, ib., 1878, p. 290. 



plicatula^ Martens, ^aclir. Malak. ges., 1869, p. 149. 



pijramidea, Martens, v. d. Decken's Reise, iii, p. 55, 1869. 



mesogaa, Martens, Deutsch Ost Afr., vol. iy, p. 50, 1898. 

 yar. bohmi, id.. I.e. 



living stoniana (Ancey), id., I.e., p. 48. 



subjenynsi (Ancey M88.), id., I.e., p. 49. 



episcopalis, Smith, Ann. Mag. Nat. Hist., vol. vi, p. 152, 1890. 



percivali, Smith, Journ. Conch., vol. x, p. 317, 1903. 



pertnanens, Smith, Journ. Malac, yol. viii, p. 94, 1901. 



consociata, Smith, P.Z.S., 1899, p. 584. 



nyassfma. Smith. 



miceyi, Bourguignat, Helix. Afr., 1885, p. 9. 



alfieriana, Bourguignat, ib., p. 13. 



formosa, Bourguignat, ib., p. 14. 



megastoma, Bourguignat, ib., p. 14. 



iusignis, Bourguignat, ib., p. 15. 



miizonata, Bourguignat, ib., p. 15. 



smithi, Bourguignat, Moll. Air. equat., 1889, p. 17. 



meruensis, D'Ailly, Kilim. Meru Exp. 6, p. 13, 1911. 



bnsiie7isis, Kobelt, Rev. Suisse Zool., vol. xxi, p. 59, 1913. 



entebheana, Pollonera, Torin. Boll. Mus. Zool., No. 561. 



germaini, Caesar Boettger, Proc. Malac. Soc, vol. x, p. 348, 1913. 



boivkercB, Preston, ib., vol. vii, p. 88, 1906. 



givendoletKt, Preston, Ann. Mag. Nat. Hist., vol. vi, p. 529, 1910. 



martensiana, Preston, ib., p. 529. 



monozo7iata, Preston, ib., p. 530. 



? shimbiense, Preston, ib., p. 530. 



levistriata, Preston, Rev. Zool. Afr., vol. iii, p. 48, 1913. 



nyiroensis, Preston, ib., p. 48. 



voie7isis, Preston, ib., p. 49. 



iiiflata, Preston, ib., p. 49. 



solida, Preston, ib., p. 49. 



