163 



Cyclas lutea, Ziegler. = Sph. corneum. 

 Oyclas macidata, Anton. = S'ph. Bahiense. 

 Cyclas maritima, D'Orbigny. = 0. Cuhana. 

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

 Cyclas minima, Studer. = P. ohtusale. 

 Syh. mirahile, Prime. = Sph. partumeium. 

 jSjjJi. modestum. Prime. = Sph. striatinum. 

 Cyclas 3Ioquiniana, Gassies. = Sph. modioliforme. 

 Cyclas Nepeanensis, Lesson. = Co7'h. Nepeanensis. 

 Cyclas nitida, Hanley. = P. abditum. 

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

 Cyclas 7iucleus, Studer. = Sp>h. corneum. 

 Cyclas obliqua, Lamarck. = P. amnicum. 

 Cyclas obticsalis, Lamarck. = P. obtusale. 

 Sph. orbicularium, Barrat. = Sph. partumeium. 

 Sph. ovale, Stimpson. = Sph. occidentale. 

 Cyclas ovalis, Nilsson. = P. obtusale. 

 Cyclas ovalis, Prime, = Sph. occidentale. 

 Sph. ovatum, Lewis ; undescribed. 

 Cyclas pallida, Cliarpentier. = Sph. ovale. 

 Cyclas palustris, Draparnaud, = P. amnicum. 

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

 Sph. pellucidum, Prime. = Sph. tnmcatum. 

 Cyclas Perezeii, Villa. = Sph. lacustre, 

 Cyclas Pfeifferi, Ziegler. = P. amnicum. 

 Sph. Pisidioides, Gray. = Sph. corneum. 

 Cyclas plumb eus, Villa. = Sph corneum. 

 Sph. ponderosum, Prime. = Sph. simile. 

 Sph. proximum, Alder. ; undescribed. 

 Cyclas pulchella, Hanley. = P. casertanum. 

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

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

 Cyclas p>usilla, Turton. = P. pusillum. 

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

 Cyclas quercus, LeAvis ; undescribed. 

 Cyclas radiata, Blainville. = Galathea radiata. 

 Cyclas rivalis, Draparnaud. = Sph. corneum. 

 Cyclas riigosa, Whittemore ; undescribed. 

 Cyclas sabulicola, Krynicki. = Sph. rivicola. 

 Cyclas Sarratogea, Lamarck. = Sph. simile. 

 ■Sph. simplex. Prime. = Sph, striatinum. 

 Cyclas solida, De Kay. = Sph. simile. 

 Cyclas stagnicola. Leach. = Sph. corneu77i, 

 Cyclas Steenbuchii. Moller. = P. Steenbuchii. 

 Cyclas striatella, Ferussac. = Sph. modioliforme. 



