170 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



The iliracnsions given by Ileudc — long. 25, diara. max. 2 rara. — cannot 

 possibly be correct ; the specimen received from liim measures long. 

 14, diam. max. 3 mm. 



4. Clausilia microtbyea, n.sp. PI. VIII. Fig. 4. 



Testa parva, clavato-fusiformis, gracilis, solida, scricina, comeo- 

 brunnca ; spira fere exacte turrita; apex acutus, corneus. Anfr. 10^ 

 convexiusculi sutura impressa subuuirginata disjuncti, regulariter 

 fere costulato-striati ; ultimus duplo distantius costulatus, basi leviter 

 rotundatus. Apert. obli<iiia, parva, faucibus brunneis, regulariter 

 piriformis ; peristoma continuum solutum, expansum, rellexum, 

 crassissime albo-labiatum, dente sub sinulo circulari distinctissimo. 

 Lamella; crassae sed parum altae, valde approximata;, intus conver- 

 gentes et fere contigua;, superior marginalis, subverticalis, cum spirali 

 continua, inferior profunda alte sita, subtransversa, parum conspicua; 

 subcolumellaris immersa. Plica principalis longissiraa, intus lineam 

 lateralcm transgrediens, cxtus in margine terminata. Lunella late- 

 ralis, cum palatali supera longa arcum semicircularem exhibens. Alt. 

 12'5-13 mm. ; diam. mod. 2*75 mm. ; alt. apert. 2*5, lat. apert. 2 mm. 



Hab. — Lytschouanhien, province of Hupeli, received from Father 

 L. Fuchs, two specimens. 



Differs from C. spinula, Heudc, in the apex being more slender 

 and more finely pointed, in the aperture being smaller, more rounded, 

 and having an exceptionally thick margin. The lamella superior 

 and the lamella inferior approach each other more closely. Differs 

 from C. chu'ulus, Heude, in being altogether more slender ; the plica 

 principalis is shorter inside, and the lamella superior and inferior 

 come closer together. 



5. Clausilia clavulus, Heude. 



Heude, Journ. de Conch. 1886, p. 301 ; Moll. terr. 1890, p. 160, 

 t. XXXV. fig. 9. 



We have before us an authenticated specimen from Pere Heude of 

 lOi whorls and alt. 14-75, diam. med. 3-5 mm. As the species is 

 Tery similar to C. spinula, Heude, it may not be out of place to give 

 a short sketch of the principal diiferences. 



" Diiiert a C. spinula, Heude, testa majore, solidioi'e, anfr. 10^-12 

 (nee 10-11) distinctius costulato-striatis, peristomate calloso-labiato, 

 labio crassiore convexo. plica principali intus distincte longiore, 

 introrsum usque trans regionem lamella) superioris protracta." 



In the other plaits, in the lamellae, in the position of the clau- 

 silium, in the colour and the light zone running along the suture, and 

 in the sculpture, there is no essential difference. 



Var. 2^olijtropa, n. var. 



Dlffert a typo testa minore, ventricosiore, plumbea, suturis clarius 

 marginatis, anfr. 9-10 densius striatis, ultimo duplo densius sti'iato, 

 apci't. piriformi-rotundata, alba, crassius labiata, dente sub sinulo 

 posito minus acuto. Alt. 11-25-13 5 mm.; lat, 3-325 mm.; alt. 

 apert. 3, lat. apert. 2-25 mm. 



As in C. clavulus, type, the plica principalis goes beyond the lamella 

 superior and beyond the sinulus. The margin is more strongly de- 

 veloped than in the type. 



