1885.] 0. F. V. MoUendorff — Jaimncse Land and Frcshivater Shells. 67 



37. DiPLOMMATiNA LABiosA, V. Mart., Sitz. Ber. Ges. Nat, Fr. 17 

 April 1877, p. 98. Kobelt, Fann. Jap. p. 112, non D. labiosa, W. T, 

 Blanford, J. A. S. B. XXXVII, Pt. 2, 1868. 



This fine Dijjlommatina, which has, so far as I know, not yet been 

 figured, requires renaming on account of D. labiosa, Blanf. As this has 

 probably been already done, I mention the species under the old name in 

 order to avoid a superfluous synonym. 



It was discovered by Dr. Hilgendrof in the Hakoni mountains, 

 where Messrs. Hungerford and Eastlake have since collected it. Hun- 

 gerford also found it at Asinoin, and Anderson at Myiokishita. 



38. DiPLOMMATiNA NIPPONENSIS, n. Sp. 



Testa dextrorsa, rimata, elongate ovato-conica, siibtiliter sed distincte 

 et regulariter striatula, rufescenticornea, anfr. 7 convexi, sujperiores 

 spirant conicam acutiusculam eifficientes, duo ultimi paullmn distorti, tilti- 

 mus angustior, antice ascendens. Apertura fere verticalis, suicircularis, 

 peristoma duplex, rejlexiusculum, expansum, superne in anfractum penul- 

 timum productum. Lamella columellaris humilis spiraliter recedens, plica 

 palatalis longiuscula, supra aperturani co7ispicua. 



Long. 2|-, diam. 1^ mill. 



Hab. Ad Asinoin leg, cl. E-. Hungerford, in montibus Hakoni leg. 

 cl. F. W. Eastlake. 



So far as I know, only two species of D iplommatina have been 

 described from Japan, the preceding and B. pusilla, v. Mart. From both 

 of these our new form is widely different. The nearest are D. paxillus, 

 Gredl., of Central China and D. hungerfordiajia, Nev., of Formosa ; which 

 are both a little larger, and much more regular and rounder in shape, 

 while J), nipponensis is at once distinguished by the regular pointed cone 

 of the upper whorls and the distorted suddenly enlarged lower ones. The 

 sculpture of our species is much more regular, the columellar margin of 

 the peristome is rounded, hardly angulate at all, whilst D. hunger/or- 

 diana is slightly subangulate, and D. paxillus distinctly angulate at the 

 base. 



39. Japonia barbata, Gould. I am indebted to Mr. F. W. Eastlake 

 for some specimens of this rare shell which were collected by him in the 

 Hakoni mountains. They have enabled me to settle the vexed question of 

 what Japonia, Gould, really is. Gould says nothing about its affinities, E. 

 von Martens (Ostas. Landschn. 1867, 12, 127) supposed it to be related to 

 Cydotus, and Pf eiff er placed it at first near Eydrocena, later on considering 

 it to be a section of Bealia. The descriptions of the genns and its three 

 species given by Gould are, it is true, so incomplete and vague that 

 very little can be concluded from them. The examples collected by 

 Mr. Eastlake agree very well with the description of T. harhata, Gould j 



