X APPENDIX* 



ther it should be placed here or in AmpuUaria, 

 nevertheless in those few particulars in which the 

 Paludinse diifer from the AmpuUariee, this shell ac- 

 cords more nearly with the Paludina;. Locality un- 

 known. 



1070. PALUDINA BICOLOR. 



P. testa ohlongo-conic&, apice ohtuso^ anfractibus 

 subquinis, convexiusculis^ olivaceis, strigis qua- 

 tuor vel quinque transversis, elevatis, fuscis orna- 

 ta : long. ^ unc. lat. ~ unc. 



Obs. From Canton. I have long known this 



shell, but do not find it described anywhere. 



1089. AMPULLAEIA MEGASTOMA. 



A. testa subglobos^, longitudinaliter undulato-stri- 

 at^ ; spir^ brevissima, depress^ ; anfractu ultimo 

 maximo, superne rotundato-angulato ; umbiiico 

 minimOj juxta labii columellaris medium posito ; 

 apertm-a amplissim^, superne suhangulata^ infra 

 rotundata : latitudine longitudinem fere eequante. 

 Obs. The only specimen of this singular shell 

 that we have seen ; it is about three inches long, 

 the same in breadth^ and of a pale colour, with trans- 

 verse fuscous bands; the inside is irregularly co- 

 loured with a brownish violaceous tinge. Locality 

 unknown. 



1092. NAVICELLA SUBORBICULARIS. 



N. testil suborbiculari, cavitate profundiore, vertice 

 submarginali. 



Obs. This species nearly resembles N. elliptica :, 

 its greater diameter is to its smaller as 5 to 4 : its 

 vertex is not quite marginal : it is white, with an 

 orange spot within the vertex, and it is externally 

 marked with triangular white spots, whose inter- 



