ME. A. ADAMS ON THE JAPANESE SPECIES OF LETOSTBACA. 87 



A pale horn-coloured, subulate species, slightly bent forwards, and with 

 somewhat convex whorls. 



24. LeIOSTRACA EXIGUA, /i. Jc?. 



L. testa subulata, recta, utriuque aiigiistata, sordide alba; anfractibus 

 normulibus planulatis, suturis anguste marginatis, anfractu ultimo aui- 

 plo, in medio turgidulo ; apertura elongata, antice et postice augusta. 



Hab. Seto-Uchi (Akasi). 



A small, dull-white species, with the base narrowed. 



25. Leiostraca nana, A. Ad. 



L. testa ovato-subulata, recta, spira attenuata, alba, nitida, subdiaphana ; 



anfractibus normalibus couvexiusculis, suturis marginatis ; apertura 



elongato -ovata, antice effusa et subproducta. 

 Hab. Yobuko. 



Most like.L. tantilla ; but the outline of the spire is concave, the vertex 

 attenuated, and the whorls less convex. 



26. Leiostraca pumila, A. Ad. 



L. testa parva, subulata, gracili, utrinque angustata, alba, opaca; anfrac- 

 tibus normalibus couvexiusculis, ultimo in medio tuiriidulo ; apertura 

 angusta, elongata, antice acuminata ; labio rectiusculo. 



Hab. Uraga. 



Belongs to the species with convex whorls, such as L. tantilla, but is 

 slender, with a narrow aperture, and straight inner lip. 



B. Species variegated. 



27. Leiostraca nixa, A. Ad. Annals, 186L 

 Hab. Mino-Sima; Gotto. 



28. Leiostraca spiculum, A. Ad. Annals, 186L 

 Hab. Mino-Sima. 



29. Leiostraca bilineata. Ad. 8f Rve. Zool. Voy. Samarung, pi. 1 1. fig. 24, 

 (L, bivittata, H. ^ A. Ad. " Genera.") 



Hab. Uraga ; Seto-Uchi. 



30. Leiostraca lentiginosa, A. Ad. Annals, 1861. 

 Hab. 0-Sima; Seto-Uchi (Mososeki). 



31. Leiostraca picturata, A. Ad. 



L. testa subulata, crassa, subdiaphana, nitida, lutescente, lineis rufis undu- 

 latis longitudinalibus et maculis irregularibus varie picta, vertice viola- 

 ceo ; suturis rufescentibus, marginatis ; anfractibus normalibus 8, planis, 

 ultimo antice producto ; apertura elongata ; labio incrassato, calloso. 



Hab. Gotto, 48 fathoms. 



A very pretty species, variously marked with lines and spots. 



32. Leiostraca coNSPURCATA, J. Jrf. 



L. subulata, recta, teretiuscula, sordide alba, lineis maculisque fuscis ir- 

 regulariter reticulata ; spira attenuata ; anfractibus normalibus 6, planis. 



