1872.] F. Stoliczka — On the Cyclostomacea o/Fenmg. 271 



Lagocheiltts stbiolatus, n. ep. PI. X, Fig. 16. 



L. testa iurrito conoidea, anguste umbilicaca ; anfractibus 5'5 con- 

 veocis, sutura sionplici junciis, ultimo ad peripheriam inferiorein vix~ 

 angulaio ; apice Icevigaio, olivaceo ; aoif. ceteris cuticula fusca vel brun- 

 nea induiis, iransversva oblique subdisianter, el spiraliter densissime, strio- 

 latis ; hasi stib-lcevigata vel sub-obsolete spiraliter striatula ; aperiura aonpla, 

 sub-cvrculari, peristomate postice ad angulum profunde inciso, infra ad latus 

 iasals eonspicuiter producto, bilabiato, Idbio inferno in junioribus violaceo, in 

 adultis ad marginem albido, eccierno undiquefere cequaliter planeqxis dilatato, 

 corneo. Operculum tenue, cornsum, ' multispiratum. Diam. onaj. 6, diam. 

 min. 5, alt. testes 6'Q ; diam. apsrt. int. 2*6, ecot. 3*2 on. on. 



This smaller form resembles L. tomotrema and leporinus, but it is 

 distinguished from both by a slightly larger spiral angle, rounded (not 

 angulated) whorls, and by the very dense, filiform, spiral striation. 



Sab. Penang. Under dead leaves on the ground along the base of the 

 hills, together with the last species ; rare. 



Animal leaden grey, with moderately elongated, darker, cylindrical ten- 

 tacles ; eyes on minute bulgings, joined on the inner side to the base of the 

 tentacles ; upper posterior part of the foot with a narrow glandular slit, ex- 

 tending from the operculigerous lobe to the end ; lateral pedal row very 

 thin. 



