LIMNAEACEA. 231 



39. Physa cernica, Morelet. 



16 Mauritius j coll. G. Nevill, Esq. 



40. Physa sandwichensis, Goui. 



2 Sandwich I. ; ex c. Prof. W. Newcomb. 



41. Physa guadaloupensis, Goui. 



{fide Newcomb). 



3 Sandwich I. ; ex c. Prof. W. Newcomb. 



42. Physa Obtusa, Morelet. 



1 New Caledonia ; ex c. A. Morelet, Esq. 



43. Physa, n. sp. (?). 



3 Patengun in Java (?) ; coll. Baron F. von Richthofen. 



44. Physa fontinalis, Linn. 



20 England ; coll. G. Nevill, Esq. 

 7 Potsdam ; ex c. Dr. Ed. von Martens. 



3 Grenoble ; coll. G. Nevill, Esq. 



45. Physa contorta, Mich. 



{Fide Jick., Isidora contorta, Mich. = truncata, Fer. = 

 harpula, Fer., firocchi, Ehr. = JiempricM, Ehr.= rivularis, 

 Phil. = tropica, Krauss. = cyrtonota, Bourg.) 



1 Portugal ; ex c, A. Morelet, Esq. 



46. Physa acuta, Drap. 



{Fide Jick. = subopaca, Lam. = nana, P. & M. = oblonga, 

 P. & M. = borbonica, Fer. = seychellana, Mart. = 

 canariensis, Bourg. = dalmatina aud buscJii, Kiist.) 



2 Lyons, France ; coll. G. Nevill, Esq. 



Sub-Genus BULINUS, Adamson. 

 (Aplexus, Gray). 



47. Physa (Bulinus) hypnorum, Linn. 



4 Halle, in Saxony. 



20 Berlin; coll. Dr. Ed. von Martens and Prof. Ehrenberg. 

 12 Middlesex; coll. G. Nevill, Esq. 

 2 France ; donor M. Malherbe, ex c. As. Soc., Bengal. 



48. Physa (Bulinus) aurantius, Cpr. 



6 Acapules ; ex c. Prof. W. Newcomb and Prof. E. C. Stearns. 



