163 



Cyclas lutea, Ziegler. = Sph. corneum. 

 Cyclas maculata, Anton. = Sph. Bahiense. 

 Cyclas maritima, D'Orbigny. == C. Cubana. 

 Cyclas minor, C. B. Adams. = P. abditum. 

 Cyclas minima, Studer. = P. obtusale. 

 SyJi. mirabile, Prime. = Sph. partumeium. 

 Sph. modestum, Prime. = Sph. striatinum. 

 Cyclas Moquiniana, Gassies. = Sph. modioliforme. 

 Cyclas Nepeanensis, Lesson. '= Corb. Nepeanensis. 

 Cyclas nitida, Hanley. = P. abditum. 

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

 Cyclas nucleus, Studer. = Sph. corneum. 

 Cyclas obliqua, Lamarck. = P. amnicum. 

 Cyclas obtusalis, Lamarck. = P. obtusale. 

 Sph. orbicularium, Barrat. = Sph. partumeium. 

 Sph. ovale, Stimpson. = Sph. occidentale. 

 Cyclas ovalis, Nilsson. = P. obtusale. 

 Cyclas ovalis, Prime. = Sph. occidentale. 



fh. ovatum, Lewis ; undescribed. 

 das pallida, Char pen tier. = Sph. ovale. 

 clas palustris, Draparnaud. = P. amnicum. 

 Cyclas Paranensis, D'Orbigny. = Corb. Paranensis 

 JSph. pellucidum, Prime. = Sph. truncatum. 

 Cyclas Perezeii, Villa. = Sph. lacustre. 

 Cyclas Pfeifferi, Ziegler. = P. amnicum. 

 Sph. Pisidioides, Gray. = Sph. corneum. 

 Cyclas plumbeus, Villa. = Sph corneum. 

 Sph. ponderosum, Prime. = Sph. simile. 

 Sph. proximum, Alder. ; undescribed. 

 Cyclas pulchella, Hanley. = P. casertanum. 

 Sph. pulchellum, D'Orbigny. = P. pulchellum. 

 Cyclas punctifera, Guppy. = P. punctiferum. 

 Cyclas pusilla, Turton. = P. pusillum. 

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

 Cyclas quercus, Lewis ; undescribed. 

 Cyclas radiata, Blainville. = G-alathea radiata. 

 Cyclas rivalis, Draparnaud. = Sph. eorneum. 

 Cyclas rugosa, Whittemore ; undescribed. 

 Cyclas sabulicola, Krynicki. = Sph. rivicola. 

 Cyclas Sarratogea, Lamarck. = Sph. simile. 

 JSph. simplex, Prime. = Sph t striatinum. 

 Cyclas solida, De Kay. = Sph. simile. 

 Cyclas stagnicola, Leach. = Sph. corneum. 

 Cyclas Steenbuchii, Moller. P. Steenbuchii. 

 Cyclas striatella, Ferussac. = Sph. modioliforme. 



