80 THE XAUTILUS. 



Thin, with very finely beaded riblets or strire, P. ajnussiiata Rve. 



Thin, with very fine striae, not beaded, P. toreutna Rve. 



Shell porcellanous inside, opaque, not iridescent (^Sctitellastra.) 



Depressed, having strong irregular ribs, P. stellceformis Rve. 



[COMMVNICATED.I 



DONATIONS TO UNITED STATES COLLECTION. 



Owing to illness in Mr. Camiibell's family, lie was unable for 

 several months, to pay much attention to the United States Collec- 

 tion, but since September 10th, work has been fully resumed and 

 the collection is making its usual rapid strides. It would be im- 

 possible in the limited spaced granted to us in the Nautilus to 

 acknowledge all the shells sent since the date of the last acknowl- 

 edgment, but the following will give an idea of them. 



I. Greegor, Jacksonville, Fla. — 



Ranella Californica, Hinds ; Oliva litterata, Lam. and Nassa vibex, Say. 



F. E. Blanes, Key West, Fla.— 



An interesting lot of Key West Shells including Marginella guttata, Dillw., 

 and pellucida, Pfr. ; Cyprsea cinerea, Gmel.; Olivella nivea, Gmel. and 

 floralia, Duclos ; Natica lactea. Guild, and canrena, Linn.; lanthina com- 

 munis, Lam. ; Nerita tessellata, Gmel. and versicolor, Linn ; Glyphis listeri, 

 D'Orb. ; Astralium longispinum. Lam.; Murex Salleanus, Adams; Conus 

 verrucosus, Hwass ; Strophia incana, Binney; Helix cereolus, Miihl. and 

 numerous others. 



Prof. Josiah Keep, Mills College, Cal. — 



PLmctum conspectum. Bid. and Pedicularia Californica, Newc. 



H. A. Pilsbry, Philadelphia, Pa.— 



Helix Roemeri, Pfr. ; Corbula undifera, Meek, cretaceous of Wyoming. 



J. ]. White, Palm Beach, Fla.— 



A number of marine species from Lake Worth, Fla. including Area Noae, 

 Linn.; Columbellamercatoria, Linn. ; Cassis sulcosa, Born; Ovulum gibbosum, 

 Linn. ; Astralium tuber, Linn. ; Iphigenia Brasiliana, Lam. and Echinella 

 nodulosa, Pfr. 



W, S. Teator, Upper Red Hook, N. Y.— 



More than 30 species of land and fresh-water shells, including Helix pulchella, 

 monodon, labyrinthica, palliata and hirsuta ; Succinea obliqua, avara, ovalis 

 aurea; Limnaea humilis, columella, palustris and catascopium; Zoniies 

 fuiiginosus and nilidus; Planorbis bicarinatus and campanulatus. The 

 Succinea obliqua Say are magnificent specimens, the largest we have ever 

 seen, and beautifully cleaned. 



