40 



Dr. A. A. Gould read the following descriptions of 

 new species of shells : — 



Sue CINE A LYRATA. T. ovata, soliclula, luteo-virens, unda- 

 tellis flexuosis lyrata ; anfr. tribus veiitricosis, apice obtuso. 

 Apertura ovata, columella vix flexuosa callo perexiguo induta. 

 Axis ^ ; diam. I poll. 



Near the sea-shore, Loo Choo. W. S. 



A small ovate species, quite remarkable for its lyrate surface. 



Auricula (Leuconia, Gray) opportuna. T. parva, ellip- 

 soidea, solida, livido-albida, lasvis ; anfr. 6 ad suturam imbricato- 

 appressis. Apertura falcata, postice acutissima, antice rotundata ; 

 labio lamella compressa elevata mediana et lamella duplici anti- 

 cali obliqua instruct© ; labro simplici. Long. 8 millim. ; diam. 

 4 millim. 



Inhabits Loo Choo Is. W. S. 



Omphalotropis strictus. T. elongata, ovato-conica, solid- 

 ula, la3vis, arete umbilicata ; anfr. 6 rotundatis ad suturam tabu- 

 latis. Apertura ovata, peritremate simplici coutinuo, sed postice 

 ad ventrem retracto; umbilico carina inconspicua approximata 

 cincto. Axis ^ ; diam. ^ poll. 



On old stone walls, Loo Choo. W. S. 



One of the smallest species yet described, with a very small 

 perforation, and a faint keel around it at a very short distance. 



LiMN^A OLLULA. T. parva, tenuis, ovata, viridi-cornea, im- 

 polita ; anfr. 4-j-, ultimo ventricoso. Apertura rotundato-ovata 

 columella simplici, postice callo lato induta. Axis ^ ; diam. -i 

 poll. 



Streams and marshes on Hong Kong Island. (Wright.) 



Very much like a small L. modicella. 



Ancylus gaulus. T. oblique pyramidata, apice ad quad- 

 rantem posteriorem longitudinis, dextrorsum inclinato, obtuso ; 

 epidermide luteo-cornea, superne fusca. Apertura rotundato- 

 ovata, intus plumbea. Long. -^ ; lat. ^ ; alt. ^^ poll. 



Inhabits Cape of Good Hope. W. S. 



A solid, well rounded species, without any salient characters. 



Planorbis spirillus. T. parva, discoidea, utrinque concava, 

 teimis viridi-cornea, plerumque liris ad quatuor prope aperturaui 



