308 Zoological Society. 



near the point, and black at the point. The under parts of the body 

 are greyish white, each hair being deep grey and tipped with white. 

 The feet are white. The tail is furnished throughout with very 

 minute hairs. It approaches most nearly to the P. murina, but differs 

 in being rather larger, in general colouring, and especially in having 

 the tail of a dark colour, and not white, as in that species. 



March 22. — William Horton Lloyd, Esq., in the Chair. 

 The following paper, by ^Ir. Lovell Reeve, entitled " Descriptions 

 of new species of Shells, principally from the collection of Hugh 

 Cuming, Esq.," was read. 



BuLiMUS SMARAGDiNUs. Bill, tcstd obloiigo-ovatci, Jiitidd, viridi, 

 apicnm versus suhpurpured ; fascia albd per anfructuum suturas 

 decurrente ; aperturd rotundnto-ovali, peristomate albo, reflexo. 

 Reeve, Conch. Syst., vol. ii. pi. 173. fig. 6. 

 Hah. ad insulam Mindanao, Philippinarum. 

 Long. 2| ; lat. If poll. 



The whorls of this shell exhibit a pleasing gradation of colour ; 

 commencing at the apex in deep purple, it passes through pale yel- 

 low to a bright sea-green. 



Helix Valtoni. Hel. testd ovatd, depressd, anfractibus ventricosi- 

 usculis, ultimo superne productiore ; rubido-fuscd, radiis longi- 

 tudinalibus obsolete pictd ; epidermide tenui, peculiariter maculosa, 

 indutd ; aperturd subquadrato-ovali, marginibus nigerrimis, dis- 

 junctis ; labro acutissime reflexo. Reeve, Conch. Syst., vol. ii. 

 pi. 166. fig. 23. 

 Hab. ad insulam Ceylon. 

 Long. 2^ ; lat. 1|| poll. 



I name this remarkable shell in honour of my friend "William 

 Walton, Esq., a zealous and assiduous collector ; it is of a dark 

 ruddy brown colour, and has a very black jwlished lip ; it is, how- 

 ever, especially characterized by its curiously speckled epidermis. 

 Siphonaria characteristica. Siph. testd orbiculari, conicd, 

 extus longitudinal iter costatd, costis irregularihus, interstitiis rii- 

 gricantibus, apicem versus valde dccorticutis ; intus nigerrimo- 

 fuscd, impressione musculari scabrd, profundi ?wtatd ; i7npressione 

 siphonali characteristice imbutd. Reeve, Conch. Syst., vol. ii. 

 pi. 138. fig. 3. 

 Hab. In sinu Panamensi. 

 Long. 2^ ; lat. 1^ ; alt. IJ; poll. 



This shell approaches very closely to the Siphonaria gigas of Sow- 

 erby ; we venture, however, after a close comparison between speci- 

 mens of each in different stages of growth, to pronounce it a distinct 

 species. It is of a more irregular form, and the separate impressions 

 of the muscle and the siphon are remarkably distinct. 



Parmophorus corrugatus. Parm. testd elongato-quadratd, tenui, 

 depressd, extiis leviter corrtigatd ; vertice obttcso, prope ad partem 

 posticam inclinato. Reeve, Conch. Syst., vol. ii. pi. 139. fig. 1. 

 Hab. ad insulam Madagascar. 

 Long. Ii; lat. I poll. 



