BIVALVIA. 
Moll. 95 
Plicatula horrid a , sp. n., cuneata (Dkr.), muricatci (A. Ad.), and rugosa 
(Dkr.), Dunker, Moll. Jap. pp. 246 & 247, pi. xi. figs. 3-7, Japan ; the 
last name preoccupied, changed into irregularis, id. 1. c. p. 261. 
OsTREIDJC. 
Development of the common oyster, R. Horst, Tijdschr. Nederl. Dierk. 
Yer. vi. pp. 25-34, pi. iii. Translated in Q. J. Micr. Sci. xxii. pp. 341-346, 
with a plate; abstract in J. R. Micr. Soc. (2) ii. p. 330, and Zool. Anz. 
1882 , pp. 160 - 162 . 
Notes on the genital organs of the Oyster by P. P. Hoek, C. R. xcv. 
pp. 869-872. 
Parasites and commensals of the Oyster ; A. Certes, Bull. Soc. Z. Fr. 
vii. pp. 347-353. 
Ostrca edulis var. tarentina , venetiana and tyrrhena , and 0. plicata 
(Chemn.) = cristata (auctt.) ; specimens from Genoa distinguished and 
figured in woodcut by A. Issel, Ostricoltura, pp. 22-34. 
Bo uchon-Braudely states that the Portuguese Oyster, Ostrca angu- 
lata (Lam., Gryphcea), Recently acclimatized on the west coasts of France, 
is unisexual, and that its eggs are expelled from the shell, and fecundated 
in the sea [as in 0. virginiana ; Rec.] ; artificial fecundation presents no 
difficulty of execution in this species. C. R. xcv. pp. 256-259 ; translated 
iu Ann. N. H. (5) x. pp. 328-330 ; abstract in J. R. Micr. Soc. (2) ii. 
p. 606, and Le Nat. 1882, No. 24, p. 185. 
Ostrca virginiana (Lam.) [ virginica , Gmelin]. Anatomical description 
and observations on comparatively greater energy of growth than in 
0 . edidis , breeding, food, green colour, and fauna of the oyster-beds, by 
J. A. Ryder, in Ferguson’s Report on the Fisheries of Maryland, 1881, 
Appendix l,and Bull. U. S. Fish Comm. i. pp. 403-419, July, Aug., 1882; 
abstract by Dali in Am. Nat. xvi. p. 881. Preliminary notes on some 
points in the minute anatomy of the oyster by the same in Bull. U. S. 
Fish Comm. ii. pp. 135-137. 
E. Ingersoll (vide sup'd ) gives an account of the natural history of 
American oystors, and discusses more particularly the oystor-bods and 
their management from Maine to Texas. Oyster cultivation, as practised 
in Connecticut, is discussed in the Report of the Commissioners of Shell 
Fisheries in that State (Hartford, 1881, presented to the Legislature in 
1882). The oyster-beds in Tangier and Pocamoke Sounds, and parts of 
Chesapeake Bay, are the subject of a paper by F. Winslow, in the 
Report of the Commissioners of Fisheries in Maryland (Annapolis, 1880). 
A valuable article on Chesapeake Oysters in the “ New York Herald,” 
Oct. 11, 1881, and another on Oysters in Season, op. cit ., Aug. 26, 1881; 
on deterioration of American Oyster-beds, by F. Winslow, in “Popular 
Science Monthly,” xx., Nov. and Dec., 1881“; abstracts by Dali, Am. Nat. 
xvi. pp. 961-965. 
Account of experiments in oyster-culture, and observations relating 
thereto, by J. A. Ryder, and experiments in artificially fertilizing the 
ova of the European oyster, by F. Wilson, in Ferguson’s Report of 
Fisheries, 1881, Appendix, pp. 1-80. 
