586 
ZOOLOGICAL LITI3RATURE. 
CORBULID^. 
Corhula venusta (Gould); pi. 26. fig. 4, Hakodate ; C. (Sclirenck), 
figs. 6; 0; moutli of the Amur and Bay de Castries. Schrenck, I, c. pp. 683-686, 
-^C. Qrythrodon (Lam.), Bay of Yedo. Lisclike, Mai. Blatt. xiv. p. 176. 
CQvhula luteokij sp. n., Carpenter, Proc. Calif. Acad. Nat. Sc. 1806, p. 207, 
Sail Diego, San Pedro, California. 
Corhulomya mediterranea (Costa). Its identity with C. rosea (Brown) 
and physoides (l)esli.) is disproved, and the former regarded as a mere variety 
of Corhula gibha j the other is not a Corhida, perhaps a Lepton or Poromya^ 
being punctated like the former genus. Weinkaufi*, i. pp. 24-27. 
Sphenia perversa, sp. n., Blanford, Journ. As. Soc. ii. p. 68, pi. 3. figs. 4-6, 
Delta of the Irawady, boring in stone, at a considerable distance from the 
sea, in company with Martesia Jluminalis. 
Sphenia pacijicensis \_-Jioa\ sp. n., Folin, M^l^agrinicoles, p. 15, pi. 2. figs. 
10 & 11, on pearl-oysters from Panama, together with Sph.fragilis (Carp.), 
which is here figured for the first time, figs. 7-10. 
AnATINIDtE. 
Lyonsia aaxicola, sp. n., Baird, in Lord’s Naturalist in Vancouver Island, 
ypl. ii. p. 366, Esquimalt Harbour, 
Alicia f g. n, Near to Periploma and Lyonsia, differs from both by the car-' 
tilage not being supported by projecting spoon-shaped processes, and by its 
being perpendicular to the umbones. A. angustata and elegantula, spp. nn., 
Port Jackson. Angas, Proc. Zool. Soc. 1867, p. 908, pi. 44. figs. 1 & 2. 
Thracia. The Mediterranean species are: — Thr. puhescens (VnM.), Thr. 
papyracea (Vo\\)=phaseoUna (Lam.), Thr. corbuloides (Desh.), Thr. dis- 
torta (Montagu) = Itupdlema concentrica (Fleurian). The occurrence of 
Thr. prcetenuis (Pult.) in the Mediterranean is doubtful ; Thr. pholadomya 
(Forbes) not yet recognized. Weinkaufi) Conchyl. d. Mittelmeer’s, i. pp, 
36-40. 
Thracia modesta, sp. n., Angas, 1. c. p. 908, pi. 44. fig. 3, Port Jackson. 
[^Thetis'] ' Poromya. The identity of the iEgean P. anatinoides (Forbes) 
and the fossil P. granulata (Nyst) with the Norwegian Emhla korenii 
(Lov^n) and the Algerian Corhida vitrea (Desh.) is a matter of doubt. 
Weinkauff, i. pp. 30, 31. 
Necera. Three species occur in the Mediterranean : — cuspidata (0]i\\)=i 
hrevirosU'is (Brown), rostrata {^^ong\.)=z attenuata (Forbes), and costeUata 
(J)oQh..)=^rostrato-costellata (Acton). N. ahhremata (Forbes), on the other 
hand, is a northern species. Weinkaufi) i. pp. 27-30. 
Plectodon, g. n. Allied to Necera, and having the aspect of Theora ; but 
the dorsal margin is twisting in, and ascends the umbo in a very loose 
spiral. Testa tenuis, scaber [-ra], rostrata, haud inflata j margo dorsalis 
sub umbones [-ibus] intus nexa [-us], dentem cardinalem formans dentes 
laterales longi, laminati j cartilage [in] fossa minuta, sub umbones celata, dente 
[-i] laterali postico contigua sita ; sinus pallii parvus.” PI. scaber, sp. n., 
Carpenter, Proc. Calif. Acad. Nat. Sc. 1866, p. 207, Catalina Island, Cali- 
fornia. 
Pandora gbhnya of Philippi (PSowerby), P. (Montagu) 
