163 



(Jyclas lutea, Ziegler. = Sph. corneum. 



Cyclas macidata, Anton. = Sph. Bahiense. 



Cyclas maritima, D'Orbigny. = O. Oubana. 



Cyclas minor^ C. B. Adams. = P. ahditum. 



Cyclas minima, Studei*. = F. ohtusale. 



jSyh. mirabile, Prime. = SjyJi. jjartumeium. 



jSph. modestum, Prime. = Sph. striatinum. 



Cyclas Moquiniana, Gassies. = Sph. modioliforme. 



Cyclas Nepeanensis, Lesson. = Corh. Nepeanensis. 



Cyclas nitida, Hanley. = P. abditum. 



Sph. nitidum, C. B. Adams and Mighles. = P. Adamsi. 



Cyclas nucleus, Studer. — Sph. corneum. 



Cyclas obliqua, Lamarck. = P. amnicum. 



Cyclas obtusah's, Lamarck. == P. ohtusale. 



Sph. orhicularium, Barrat. = Sph. partumeium. 



Sph. ovale, Stimpson. = Sph. occidentale. 



Cyclas ovalis, Nilsson. = P. ohtusale. 



Cyclas ovalis, Prime. = Sph. occidentale. 



Sph. ovatum, Lewis ; undescribed. 



Cyclas pallida, Charpentier. = Sph. ovale. 



Cyclas palustris, Draparnaud, = P. amnicum. 



Cyclas Paranensis, D'Orbigny. = Corb. Paranensis. 



Sph. pellucidum, Prime. = Sp>h. truncatum. 



Cyclas Perezeii, Villa. = Sph. lacustre. 



Cyclas Pfeiferi, Ziegler. = P. amnicum. 



Sph. Pisidioides, Gray. — Sph. corneum. 



Cyclas plumbeus, Villa. = iSp/i corneum. 



Sph. ponderosum. Prime. = Sph. simile. 



Sph. proximum. Alder. ; undescribed. 



Cyclas pulchella, Hanley. = P. casertanum. 



Sph. pulehellum, D'Orbigny. = P. jndchellum. 



Cyclas punctifera, Guppy. = P. p)unctiferum. 



Cyclas pusilla, Turton. = P. pusillum. 



Sph. pygmeum, C. B. Adams. = P. Jamaicense. 



Cyclas quercus, Lewis ; undescribed. 



Cyclas radiata, Blainville. = Galathea radiata. 



Cyclas rivalis, Draparnaud. = Sph. corneum. 



Cyclas rugosa, Whittemore ; undescribed. 



Cyclas sabulicola, Krynicki. = Sjjh. rivicola. 



Cyclas Sarratogea, Lamarck. = Sph. simile. 

 Sph. simplex, Prime. — Sph. striatinum. 



Cyclas solida, De Kay. = Sph. simile. 



Cyclas stagnicola, Leach. = Sph. corneum. 



Cyclas Steenhuchii. Moller. = P. Steenbuchii. 



Cyclas striatella, Ferussac. = Sph. modioliforme. 



