BIVALVIA. 
Moll. 93 
Area corhuloides (Monterosato, 1878), Mediterranean, new description ; 
id. 1. c. p. 246. 
Area glomerula and polycyma, spp. nn., and pectunculoides (Scacchi) 
var. u. orbiculata, Dali, Bull. Mus. C. Z. ix. pp. 121 & 122, Havana and 
Barbados, 100-1568 fath. 
Macrodon (Lycett, 1845). Type fossil in the lower oolite, a recent 
species, M. asperula, sp. n., Yucatan Strait, 310-1568 fath. ; id. 1. c. 
p. 120. 
Limopsis minuta (Phil.), Gulf 'of Mexico, 30-805 fath., teeth variable 
in number, and L. antillensisy sp. n., Havana, 80 fath. ; id. 1. e. p. 119. 
Limopsis eaneellata^ sp. n.. Martens, 1. e. p. 66, Eastern Australia. 
NUCULID.2E. 
Nucula eancellata, new name for reticulata (Jeffreys, 1876, pre- 
occupied) ; Jeffreys, P. Z. S. 1881 [1882], p. 951. 
Nueula cytherea, sp. n., erenulata (A. Ad.), and tenuis (Mont.), Dali, 
1. e. p. 123, Yucatan Strait and Havana, 30-800 fath. 
Leda carpenteri and solida, sp. n., L. vitrea (Orb.) var. n. eerata. Bar- 
bados and Havana, 100-450 fath., and notes on some known Caribbean 
species ; id. 1. e. pp. 124-126. 
Neilonella^ subg. n. of Leda, shell not gaping, epidermis polished, 
ligament central. Leda (^N.) eorpulenta, sp. n., Havana, 190-450 fath. ; 
id. 1. e. pp. 125 & 126. 
Yoldia solenoides and liorhina, spp. nn., id. 1. e. pp. 127, Gulf of 
Mexico, 118-1568 fath. 
Yoldia isonota, sp. n., Martens, 1. e. p. 79,2Kerguelen, 10-15 fath. 
Malletia magellanica (Smith), E. A.I Smith, P. Z. S. 1881, p. 39, pi. v. 
fig. 3, W. Coast of Patagonia. 
OSTREID^. 
Ostrea edulis (L.). Numerical statements concerning the multiplica- ' 
tion and breeding of the oyster at Arcachon by M. Brocchi in the 
‘Journal Ofiiciel’ of France, 1881 ; abstract in Ann. Sci. Nat. (6) xii. 
Art. 6, 1 p. 
Polyzoa are not noxious to oysters, but the perforating Sponge, Cliona 
eelata, is very detrimental, and a small Annelid, Leueodora sanguineat is 
also partly injurious ; Giard, Bull. Sci. Nord. (2) iv. pp. 70-73. 
Observations on the excavations of oyster-shells by the young of 
Cliona-, N. Nassonow, Zool. Anz. iv. p. 459. 
Abstract of Brooks’s paper on the development’of the American Oyster, 
1880, in Arch. Z. exp4r. ix. p. xxviii. 
Ostrea eoehlear (Poli). Note on its occurrence in the Mediterranean by 
Monterosato, Bull. Soc. mal. Ital. vi. p. 244. 
Account of artificial fertilization of the Cadiz Oyster by F. Winslow, 
Am. Nat. xv. pp. 57 & 58. W. Dali suggests that this may be the ‘ Por- 
tuguese Oyster ’ of the French, which appears to be identical with Ostrea 
virginiana ; tom. cit. p. 707. [Perhaps Gryphma angulata{hn.m ). — Reg.] 
Acclimatation and multiplication of Grypheea angulata in the Gironde ; 
supra, Generalities, Historical Changes. 
