12- 0. F. von Mollendorff — New Asiatic Clausilise. [No. 1, 



III. — Descriptions of some new Asiatic Clausilise. 



By 0. F. VON MOLLENDORFF, Ph. D. 



(Received and read May 3rd, 1882). 



Claijsilia (Psetjdonenia) andeesoniana, n. sp., PI. I, Fig. 12. 



Testa ventricosulo-fusiformis, solidula, suhtilissime striatula, fere 

 laevigata, pallide corneofusca, apice ohtusiusculo ; anfr. 10 eonvexiusculi, 

 ultimus valde attenuatus, suhtus rotundatus, distinctius striatus ; apertura 

 parum ohiiqua, oblique piriformis, peristoma continuum, valde solutum, 

 expansum, reflexiusculum, pallide corneum. Lamella parietalis supera 

 ohiiqua, sat valida, cum spirali continua, infer a crassa ante marginem 

 suhahrupte desinens, suhcolumellaris immersa. Plica principalis valde 

 elongata, palatales tres suhventrales, diver gentes, inflma arcuata. Clausi- 

 lium ? 



Alt. 20, lat. 4, apert. long 4^, lat. 3i mill. 



Hab. In insula Mergui provincise Tenasserim leg. Dr. Anderson. 



This fine new Claasilia, o£ which Dr. Anderson discovered only two 

 specimens in Mergui, is, as Mr. Nevill justly pointed out to me, nearly 

 related to CI, insignis, Gould, of the same province, to which species 

 Dr. Bottger has assigned a separate group (" Formenkreis") in his sub- 

 section Fseudonenia of Phaedusa. It differs by the smaller size, less 

 ventricose shape, the number of whorls 10 instead of 9, the more elongate 

 and oblique aperture, the freer and more protruding peristome and its 

 pale colouring and by the closing apparatus. The latter is much more 

 immersed inasmuch as the palatal plaits of 01. insignis are lateral, while 

 those of our novelty are nearly ventral and are, together with the inner 

 end of the very long principal plait, conspicuous in the penultimate whorl 

 above the aperture. Besides, the number of palatal plaits is only three 

 against five of Gl. insignis. 



I add the diagnoses of two new Japanese species, which have recently 

 been obtained by Brigade Surgeon Hungerford. 



Claijsilia miceopeas, n. sp. 



Testa gracilis, elongato-fusiformis, tenera, pellucida, suhtiliter costu- 

 lata; pallide cornea; anfr. 9^ convexiusculi, apertura rotundato-pirifor- 

 mis, peristoma continuum, solutum, expansum, reflexiusculum, alholabiatum. 

 Lamella parietalis supera marginalis ohiiqua sat valida cum spirali con- 

 tinua, infera valde remota, vix conspicua, suhcolumellaris immersa. Flica 

 principalis sat hrevis, palatalis una supera hrevis lateralis, interdum 



