140 



acute carinata, supra striata, subtus nitida, vix perforata ; anfr. 6, 

 supra planulatis, sutura submarginata ; apertura lunulari, labro 

 simplici, angulata. Diam. 7-10 ; alt. 7-20 poll. 



In general form, color and sculpture it resembles H. acies, Fer., 

 but is much smaller and not umbilicated. 



Vitrina PRiESTANS. Testa depressa, fragili, nitida, straminea ; 

 anfr. tribus, striis incrementi et striis volventibus reticulatis ; aper- 

 tura sub-coarctata. Lat. 4-5; alt. 2-5 poll. 



The largest species yet described. 



Bulimus atuicallosus. Testa solida, imperforata, oblongo- 

 ovata, vix striata, sulphurea ; anfr. 7 convexiusculis, ad suturam 

 constrictis ; apertura lunato-ovali, basi sub-effusa, labro albo, re- 

 flexo, marginibus callo atro junctis. Long. 2 1-3 ; lat. 1 poll. 



Allied to B. vittatus, Dryas, &c, from Philippine Is. The co- 

 lors of the aperture are distributed as in B. iostoma. 



Clausilia insignis. Testa fusiformi, sinistrorsa, solida, castanea ; 

 anfr. 9 convexis, leviter striatis ; apertura purpurea, rotundata, la- 

 mellis duabus fortibus postice, quinque tenuibus, per testam appa- 

 rent bus, intus instructa ; labro valde reflexo. Long. 1 ; lat. 1-5 

 poll. 



Allied to C. Macarana, and is the largest and most ponderous 

 species known. 



Cyclostoma pernobilis. Testa depresso-conica, apice acuta, 

 late umbilicata ; anfr. 6 subdepressis, striis incrementi conspicuis 

 et striis volventibus rugulosis, ultimo carina costali albida cincto ; 

 apertura magna, intus cserulescente, labro crasso, expanso, vivide 

 sanguineo : coloribus piceis et lutescentibus superne varie nube- 

 culata ; infra albida, lineis piceis volventibus interrupta. Alt. 1 ; 

 lat. 2 poll. 



This superb species closely resembles C. involvulus, Sowb. 



Cyclostoma sectilabrum. Testa turrita, spira acuminata, arete 

 umbilicata, brunnea ; anfract. 8 sub-ventricosis, vix striatis, penulti- 

 mo sub-gibbo; apertura sub-orbiculari, intus rubescente,peritremate 

 duplici, incrassato, albo, prope angulum posticum canali parvo in- 

 terrupta. Alt. 1 ; lat. 2-5 poll. 



Resembles C. altum, Sowb., but has the fissure of the peritreme 

 on the opposite side. C. croceum, Sowb., may be a faded specimen 

 of this shell. 



Unio Tavoyensis. Testa rotundata, solida, sub-equilaterali, 



