190 



Helix (Caracolla) anceps. T. lenticular!, pallide cornea" acute 

 carinata, supra striata, subtus nitida, vix perforata^ anfr. ii, supra 

 planulatis, sutura submarginata ; apertura* lunulari, labro simplici, 

 angulata. Diam. T 7 7 ; alt. .,",, poll. 



In general form, color, and sculpture it resembles //. aries Fcr., but 

 is much smaller and not umbilicated. 



\'i iimna i'k.kstaxs. T. depressa, fragili, nitida, straminea; anfr. 

 tribus, striis increment] et striss volventibus rctieulatis; apertura sub- 

 coarctata. Lat. | ; alt. | poll. 



The largest species yet described. 



BULIMUS atkicali.osus. T. solida, imperforata, oblongo-ovata, 

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

 apertura lunato-ovali, basi sub-effusa, labro albo, reflexo, marginibus 

 callo atro junctis. Long. 2^; lat. 1 poll. 



Allied to B. vittatus, Dryas, &c, from Philippine Islands. The 

 colors of the aperture are distributed as in li. iostoma. 



Clavsima insignis. T. fusiformi, sinistrorsa, solida, castanea ; 

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

 meUis duabus fortibus postice, quinque tenuibus, per testam apparen- 

 tibus, intus instructs. ; labro valde reflexo. Long. 1; lat. \ poll. 



Allied to ('. Macarana, and is the largest and most ponderous 

 speeies known. 



Cyclostoma pernobjlis. T. depresso-conica, apice acuta, late 

 umbiUcata ; anfr. 6 subdepressis, striis increment! 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 nubeculata ; infra al- 

 liida, lineis piceis volventibus interrupt;). Alt. 1; lat. 2 poll. 



This superb species closely resembles C. involvulus Sowb. [Said 

 to be C. aurantiaca Sebum., figured by Chemnitz; but it certainly 

 does not agree with his figure, though it does agree with the figure of 

 Kuster, pi. 23, fig. 45.] 



CYCLOSTOMA SECTILABRUM. T. turrita, spira acuminata, arete 

 umbiUcata, brunnea; anfract. 8 sub-ventricosis, vix striatis, penultimo 

 Bub-gibbo; apertura sub-orbiculari, intus rubescente, peritreinate 

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

 rupta. Alt. I ; lat. § 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. 



l'\i<> Tavuvinsis. T. rotundata, solida, sub-equilaterali, fusca, 

 postice dilatata, sub-angulata ; umbonibus elevatis, una cum latere 



