135 

 spira esserta; anfr, '.\-\ integri convert, rapide aecrescentes, 



ad s\it urd in imjin ■ssant ani/u/,i/i ; iiltiiniis rj/lntn.s ; u jirrt ur<i 



lunato-ovalis, intusfksca, dense fasciata ; perietomium rectum, 

 labro intus albido. 



Diam. inaj. 31, uiiii. 28, ;ilt. .'i.'i mill. ; apert. alt. 25, lat. 1 7 mill. 



8. Na\ki:i.i.\ LrvESAYi. Testa oblongo-ovata, tenuis, parum 

 pellucida, fusco-viridis, ad apicem hebescens, maculis triangu- 

 laribus luteis ornata , apex ad dextram apectans, prominuius; 

 apertura alba. 



Long. 35, lat. 15, alt. 6 mill.; apert. long. 18 mill. 



9. Navicklla sauAMATA. Testa ovata, tenuis, pellucida, fusco- 

 viridis, ml apicem rubescens, maculis luteis sguanue/ormibus, 

 striis fulguratis et maculis nigrescentibus picta ; apea ad sini- 

 stram apectans, marginalise apertura alba. 



Long. 18, lat. I"_'!, alt. j.l mill. ; ap. lorn;. [5 mill. 



10. Mklama confusa. Testa turrita, aolida olivacea vel ni- 

 gricans; anfr. 10-11 planulati, apiralisulcati out varieosi, 

 longitudinaliter atriati ; apertura oblonga, albida, nun detrun- 



cata. Operculum coraeum, itigrescens, oblongum. 

 Long. 72, lat. 18; apert. long. 22, lat. 11 mill., spec. max. 

 This species is one of the varieties of M. aculeus, Lea, under 

 which name the most different things are joined. The operculum 

 of aculeus is straight-lined, even concave on the left aide ; thai of 

 confusa is always convex. The lip of aculeus is not so far produced, 

 the columella cut off sharply ; the confusa rounded. 



11. Mklama datura. Testa oblongo-pyramidata, fragiUs, 

 diaphana, fusco-mgricans, decollata : anfr. .'i-4 ad euturam 

 angulati; supra plant, eubtus viz convexi, in angulo longis 

 apinis, infra medium Uneis elevatis ornoti; oper tura\ ceerulea 

 oblonga. 



Long. 21, lat. 11 ; apert. long. 10, lat. 5 mill. 



12. Mklania Layakdi. Testa turrtta, sotidiuscula, olivmcea i 



anfr. 6-7 convexi, striis epiralibus, rugis longitudinalibus regu- 

 lariter ornata, ad euturam fusco-maculata : apertura ovato- 

 oblonga, in/us cceruleo-albida .• columella rotundata, perieto- 

 mium valde productum, arcuatum. 

 Long. 35, lat. U>; ap. long. 1<>, lat. 5 mill. ; Bpec. max. 



Yar. Min<>>\ decollata, mgrescens, intuscan 



Long. 22, lat. 7 ; ap. long. 7, lat. 1 mill. 



