8 THE NAUTILUS. 
Scala tenuistriata d’Orb. 
Siphonaria Lessoni Blainv. Gorritti Island, Maldonado Bay. 
Triforis sp. 
Turbonilla interrupta Totten. 
Turbonilla sp. Specimens worn. 
Turbonilla dispar n. sp. 
Turbonilla uruguayensis Nn. sp. 
Urosalping Rushii n. sp. 
PoLYPLACOPHORA. 
Chetopleura Isabellet d’Orb. Maldonado Bay, with the follow- 
ing. 
Chetopleura Tehuelcha d’Orb. Maldonado Bay. Carpenter’s Ch. 
armillata (Man. Conch., xiv, p. 39) described from Gorritti Island, 
is a synonym. 
PELECYPODA. 
Azara' labiata Maton. Pond near Maldonado. 
Azara labiata var.nimbosaSowb. Pond near Maldonado; brack- 
ish or nearly fresh water. 
Corbula caribeea d’Orb. 
Corbula Iheringiana n. sp. 
Corbula Lyoni n. sp. 
Corbula patagonica d’Orb. 
Crassatella (Eriphyla) lunulata Con. 
Crassatella (Eriphyla) maldonadoensis n. sp. 
Cytherea rostrata Koch. 
Diplodonta semiaspera Phil. (Lucina semireticulata Orb.). 
Donax hanleyanus Phil. 
LIyonsia hyalina Conrad. 
LIyonsia sp. A nearly equilateral species, new to me. 
Lucina squamosa Lam. 
Mactra isabelleana d’Orb. 
Mulinia near lateralis Say. 
‘Carlos Maria de Pena has called attention to the fact that padre Dimaso- 
A. Larrafiaga, a naturalist of Montevideo, in his “‘ Memoria Geologica sobre 
la formacion del Rio de La Plata, deducida de sus conchas fosiles,’”’ written in 
1819 (? published in 1821), created the genus Matonia for Mya labiata of 
Maton, thus antedating d’Orbigny’s name Azara. I have not seen the work, 
and would decline to make a change until the proper publication and date of 
Matonia is made positive. See Anales del Mus. Nac. de Montevideo, I, 1894, 
peels 
