MOLLUSCA. 
601 
same species as the Mediterranean shell. P. opercularis (L.) very variable, 
young specimens being longer ; ribs sharp or rounded, transverse strife almost 
straight or serrated, colour not less variable, white, yellow, violet, or red, so 
that it is impossible to distinguish, even as local varieties, the P. audouinii 
(Payr.) and lincatm (Donovan). P. glaher — mlcatm (Born), likewise 
variable in the number of the ribs, the existence of longitudinal striae, and 
the colour. P.Jlextiosus (Vo\\)—iy\flexus (Payr.) =polymorp1ms (Bronn), varies 
in similar manner as the preceding, from which it is well distinguished. P. 
septemradiatus (Mull.) = c/at*a^t«5 (Poli) = d'Mmrts^V (Payr.), also very variable. 
P. hruci (Jdt\,yr.) — leptogaster (Brusiiia), P. actoni (Martens), distinct from P. 
similis (Laskey), both in the Mediterranean Sea. WeinkaufF, Conchyl. Mit- 
telm. pp. 246-260. 
Pecten gmiellarii [probably misspelt for gemellarii\ Biondi, described by 
WeinkaufF, /. c. p. 266, Sicily. 
Pecten laqueatus (Sow.) —antonii (Phil.), Nangasaki and Hakodate j P.jes^- 
soeims (St\j) = hrnndtii (Schrenck), pi. 20. figs. 1-4,* P. (Bernard!), 
pi. 21. figs. 1-3 ; P. islmtdicus (Miill.), Hakodate and Mantschuria. Schrenck, 
/. c. pp. 482-492. — P. laqueatus and yessoensis, together with crassicostatus 
(Sow.), squamatus (Gmel.), tiniS. japonicus (Gmcl.) from the Bay of Yedo. 
Lischke, Mai. Bliift. xv. pp. 179-182. — P. Japonicus, and another species, 
allied to jacobceus, figured in the Japanese Encyclopedia. Martens, Preuss. 
Exp. i. p. 141. 
Lima squamosa (Lam.), number of ribs varying from 19 to 24. L. injlata 
(Chemn., Lam.) =rcn^ncosrt (Sow.); ridges in some specimens large, with 
smaller interstitial ones, in others narrow. L. Mans (Gmel.) =tene?'a (Turt., 
Phil. &c.), Mediterranean specimens generally thin and pellucid ; but there 
are also typical specimens with a strong shell in this sea, although always 
smaller than the British specimens ; number of the ribs also variable. 
WeinkaufF, i. pp. 240-244. 
Anomiid^. 
Anomia. The species living in the Mediterranean are reduced by Wein- 
kaufF to two, epMppium (L.) and patclUformis (L.) ; the former including 
RS 'vtirieiies A. cepa polymorpha (Vh\\.)=pyriformis (Lam.), scahrella 
(Phil.), elcctrica (L.), and squamula (\j.) — margarxtacea (Poli). The second 
species has as synonyms A. nndulato- striata (Chemn.), undulata (Gmel.), 
pectinifoj'mis (Poli), and striata (Donovan). WeinkaufF, i. pp. 278-283. 
Anomia cytecum (Gray) and laqueata (Reeve), from Hakodate. Schrenck, 
1. c. pp. 473-476. — Anomia, sp., perhaps macroscMsjna (Desh.), from the Bay 
of Yedo. Lischke, Mai. Blatt. xiv. p. 162. 
Ostrea. A paper on oyster-culture in Amer. Natur. i. pp. 196-202. 
Ostrea edulis (L.). Some notes on the oysters of Venice and Tries!, their 
growth and trade, are published by Senoner, Zool. Garten, viii. pp. 106, 107. 
The oysters of the Mediterranean arc referred by WeinkaufF to the 
following SpcciQs: — 0. edulis (L.), var. crassa=0. Mppopxts (Lam.); the 
typical edulis appears to be introduced, as, for example, at Algiers, from the 
oyster-banks of Yarennes; O. cristata (Born), with var. depressa (Phil.) ; O. 
lamellosa (Brocchi) ; O. ruscuriana (Lam.) ; O. senegolcnsis (Gmel.) ; O. rosacea 
(Desh.) ; O.plicata ( Chemn.) —plicatida (Gmel.) ; stentina (Payr.) ; O. cocJileq,r 
{PoW) ^Halica (Desh.). WeinkaufF, l.c. pp. 272-278, 
