4iH Mr. W. H. Reiisoii nu ftome neiv Land S/iells. 



Bu/imus Gemmula, nobis, n. s. 



Testa riinatn-jK'rforata, ovato-conira, striatiila, nitida, cornea; spira 

 coiiica, siitura ini|»rc'ssa, apice obtiisiusculo ; antVaotibus j, ultimo 

 ad basin circnni nnibilicuni sul)angulato-conipr('Sso ; apertura ro- 

 tundato-ovali, tu])errnlo vix conspicuo parictali i<nl)angnlari munita ; 

 peristomate unditpie expansiusculo, tenui, acuto, margine dextro 

 arcuatn. 



Lonfj. 2?j, diam. 1 y, mill. 



Hab. ad insulam Sancti Vincentii Promontorii Viridis, sub lapidibua. 



Found by Mr. Layard on tbe west side of the island, under 

 the Duke's Head Mountain ; not uncouunon. This little shell 

 belonirs to the f;roup which contains BvUmus nitidulus, Pfr., 

 B. jnitilliis, Shuttl., ccenopicfus, Hntton, tutulus, nobis, and mar- 

 ginahis {fnlhix), Say, wliich have been indifferently assigned to 

 Bu/imus and Pupa, and all of which are characterized by the 

 tubercle at the right angle of the parietal border. 



Bulimus compressilabris, nobis, n. s. 



Testa vix perforata, subulifornii, confertim flexuose costulato-striata, 

 cerea, albida, sutura subimpressa, marginata, apice obtusiusculo ; 

 anfractibus vix 7, ultimo f longitudinis aeqnante ; apertura trun- 

 cato-ovali, basi rotundata ; peristomate tenni simplici, margine 

 dextro superne antrorsum arcuatim producto, subcompresso, colu- 

 mellari verticali, brevitcr reflexo, subtus nullo modo truncato nee 

 emarginato. 



Long. 6i, diam. 2 mill. 



Hah. ad insulam Sanctse Helenae in horto publico non infrequens. 



This is a form of the widely spread type to which Bulimus 

 Goodalli, Odona, &c. belong. Mr. Layard found it in a little 

 artificial watercourse in the public gardens at the entrance of 

 Jamestown. 



Achatina Spiculum, nobis, n. s. 



Testa imperforata, subulato-cylindracea, gracillima, hyalsea, politis- 

 sima ; spira elongata, apice obtuso, sutura impressa, marginata ; 

 anfractibus sub C), convexiusculi?, ultimo ^ testae aequante ; aper- 

 tura verticali, attenuato-pyriformi, basi rotundata ; labro obtusius- 

 culo, leviter arcuato ; columella ad basin oblique valde truncata et 

 pariete callosis. 



Long. 4, lat. I mill. ; long, apert. 1^ mill. 



Hab. ad insulam S" Vincentii sub lapide. 



A single specimen was found by ]\Ir. Layard on the west side 

 of the island, under the Duke's Head ^Mountain. This is a very 

 distinct species of the Ack-ula type. An uncertain species, Ach. 

 vitrea, W, B., from Teneriffe, is contained in D'Orbigny's collec- 

 tion in the British Museum. Dr. Pfeiffer has, on examination, 

 transferred it to the genus Bulimus, in which he places it as 



