BISTORICAL REMAINS AND CHANGES — COLLECTING. Moll. 33 
XX. p. 250; dead specimous of the first also at Wood’s Holl, Mass., 1871, 
by Dall, Am. Nat. xv. p. 716. 
Mya armaria (L.) first noticed in 1874 in San Francisco Bay, is now 
abundant there and the leading “ clam ” in the markets, superseding to a 
great extent the previous “clams”, viz., Mac^'p.a nasuta and Tapes staminea 
(Conr.) ; it now lives also at the northern end of Monterey Bay, but is 
wanting on the whole west coast of America, north of San Francisco. It 
was probably introduced from the east coast, like Ostrea virginica which 
has been planted in Francisco Bay since the completion of the transcon- 
tinental railroad. 9^ Stearns, Am. Nat. xv. pp. 362-366 ; abstract in 
Am. J. Sci. (3) xxii. p. 82. 
Mya arenaria (L.) from the shell-heaps of Maine and Massachussetts is 
somewhat deeper in comparison with its length than recent specimens ; 
Lunatia \heros ?] from the shell-heaps of Marblehead, Mass., hr''^'' ”^'^ss 
depressed spire than the recent forms. E. Morse, Am. J. Sci. .,!iii. 
xxii. p. 323 & 415 ; also Am. Nat. xv. p. 1015. " ' 
Shell-mounds at Omori, Japan, described by E. S. Morse, Memoirs of 
the Science Department, University of Tokio, vol. i. pt. i. [1879], 36 pp. 
18 pis. They contain 11 marine species of Gastropods and 13 of Bivalves, 
which all still live in the neighbourhood, most of them of relatively large 
size. Abstract in Ann. N. H, (5) vii. pp. 61-63. 
Use by Man. 
The French species of Mollusca which have some practical interest for 
mankind, their popular names, and some proverbs and popular songs con- 
cerning them, are enumerated by E. Rolland, Faune populaire de la 
France, iii. (Paris: 1881), terrestrial Mollusca (snails), pp. 193-213, 
marine (as Cephalopods, Oysters, &c,), pp. 185-192 & 214-221. 
The use and distribution of cowries as money by J. E. Hertz in MT. 
geogr. Ges. Hamburg, i. [1880-81] pp. 14-28. 
Note on Indian implements made from Fulgur carica and perversa 
found in Florida mounds and elsewhere in North America ; Tryon, Man. 
of Conch, iii. p. 140. 
Worked shells of Lunatia {lieros?'] in New England shell-heaps; Morse, 
Am. J. Sci. (3) xxii. p. 323. 
Collecting. 
DuruY has published a second edition of his valuable “Recherche des 
Mollusqucs terrestres et d’oau douce.” 
Note on collecting small shells from the alluvial deposits of rivers by 
V. Sterki, Nachr. mal. Ges. 1881, pp. 39-42 ; it is necessary to collect 
and examine large masses of material floated down, for several species 
.are very rarely found in it. 
A. IsSEL gives hints for collecting shells, observing their mode of life, 
&c., in his “Istruzioui scientifiche pei Viaggiatori,” Rome : 1881, 8vo, 
p. 413. 
0 lat 
