296 
ZOOLOGICAL LITERATUIUS. 
[Lithodomus~\ Modiola caudigera (Lam.) has been found on the coast of 
Algiers by M. Oh. Lallemant: P. Fischer, Journ. Conch, xiii. pp. 127- 
129. — Lithodomus lessepsiams, sp. n., L. Vaillant, ibid. p. 123, Suez. 
Prasina (Desh. in Maillard, lie Reunion) and Jidia (A. Gould). The 
close affinity between these two genera, although one has been described 
with two, and the other with one muscular impression, is pointed out 
by 0. Semper, Journ. Conch, xiii. pp. 296-298. f 
Dreissenidas. 
Dr. McircL is inclined to regard Tuhularia caspia of Pallas as the byssus 
of Dreissena polymorpluL Journ. Conch, xiii. pp. 14 & 15. 
r On the migration of Dreissena j see p. 216. 
Order OSTRACEA, Cuv. {Pectinacea, Ad.). • 
ARCIDiE. 
Barhatia (Acar) laminataj sp. n., Angas, Proc. Zool. Soc. 1865, p. 697, 
from South Australia. 
Leda fossa, sp. n.. Carpenter, Proc. Ac. Nat. Sc. Philad. 1865, p. 58, from 
Puget Sound. 
Yoldia cooperii, sp. n., Gabb, Proc. Calif. Ac. Nat. Sc. 1865, p. , from 
California. 
PECTlNIDiE. 
Pecten cequis\dcatus,paucicostatus, and squarrosus, sp. n.. Carpenter, Ann. & 
Mag. Nat. Hist. xv. p. 179, Sta. Barbara, California j P. hindsU, sp, n.. Car- 
penter, Proc. Ac. Nat. Sc. Philad. 1865, p. 58, Puget Sound. 
. . Radulidas. 
Lima hians (Schrot.). M. H. Lacaze-Duthiers (Ann. Sc. Nat. 1865, iv. 
pp. 347-352, pi. 15. fig. 6) observed this mollusk at Port Mahon, Minorca, 
living in a nest formed of fragments of stone, shells, seaweeds, &c., which 
are united by threads. The fact has been stated previously by other natu- 
ralists j and the author was unable to discover the way in which the nest is 
constructed. He endeavours to explain it by the fact that Myiilus 
edtdis spontaneously breaks the threads of byssus, by which it is attached, by 
sudden movements of the foot j but this has scarcely any bearing on the 
question how Lima procures separate pieces of thread to tie together a 
quantity of loose objects. 
OSTREIDiE. 
Ostrea. On oyster-breeding on the south-west coast of France in the 
old and present times, see Fischer, Faune conchyliologique marine de la 
Gironde : Paris, 1865, 8vo. 
Ostrea lurida, sp. n.. Carpenter, Journ, Conch, xiii. p. 137, Yancouver 
Island. 
