1891.] MR. E. A. SMITH ON NEW SPECIES OF SHELLS. 489 



entirely without bands excepting that at the suture. The bauds 

 do not extend quite to the outer lip, but stop short about 4 millims. 

 from the margin. Tbree of tbe four specimens examined have a 

 shallow concentric depression or furrow around the middle of the 

 base of the body-whorl ; but this is not an essential characteristic, 

 as there is not the slightest trace of it in the fourth shell. 



H. tomasinelliana of Tappurone-Cixnefvi is very like this species 

 in many respects, but is different in form, being higher in propor- 

 tion to the vridth and with a flatter base. 



Placostyltjs guppyi. (Plate XL, fig. 6.) 



Testa rimata, elo7igato-ovata, superne acuminata, soUdmscula, 

 riifescens, epidermide fusca, superne plus minus detrita, 

 inditta, lojigitudinaliter rugose striata, interdum in anfractu 

 ultimo obsolete malleata ; anfract. 5-6, celeriter accrescenfes, 

 supremi tres planiusculi vel vix convexi, penultimus con- 

 vexiuscuhis, ultimus magis conveocus, magnus, ohlongus, infra 

 suturain ohliquam submarginatus, leviter corrugato-plicatus ; 

 apertiira inverse auriformis, longit. totius ^ superans, longe 

 intus pallide 7'itfescens, lahrmn versus saturatior ; peristoma 

 incrassatum, leviter expansum, rufescens, marginihios callo 

 tenui albido jujictis, columellari in regione tmibilici late 

 expanso, in apertura plicam albam validam formante ; 

 apertura tuberculo albo prominente supra plicam columel- 

 larem armata. 

 Longit. 80 millim,, diam. maj. 37 ; apertura intus 40 longa, 



19 lata. 

 SLab. Solomon Islands. 



Mr. Brazier does not know the particular island where this 

 species is found. He possesses only five specimens of it, and of 

 these he has most liberally placed two of the finest in the British 

 Museum. 



The species does not compare closely with any other form. It is 

 rather ventricose, but less so than PI. eddystonensis ; but in other 

 respects it is quite different. The epidermis is of a rich brown 

 cobmr, here and there striped with a darker tint. The columellar 

 fold and the tubercle above are strongly developed. 



I have named this interesting species after Dr. H. B. Guppy, 

 who has considerably advanced oar knowledge of the fauna of the 

 Solomon Islands. 



Placostyltjs caltjs ^ (Plate XL. fig. 7.) 



Testa elongata, perforata, superne rufescens, iii anfr. ultimo 

 pallidior, epidermide flavo-olivacea tenui indiota, incrementi 

 lineis tenuihus striata, sub lente microscopice et irregulariter 

 iransuersim striata ; anfractus 6, celeriter crescentes, su- 

 premi parum convexi, ultimus elongatus, magnus, perobllij[ue 

 descetidens, ad sinistram peculiariter injlatus vel gibbus ; 



^ From fcaXos, beautiful. 



