76 
water of greater or less depth, and spread over a wide extent of 
latitude ; the larger proportion are found in the seas of warm cli- 
mates, particularly of the Indian Ocean. In the,Atlantic the group 
is met with in a high northern latitude, but the number of species 
gradually diminishes towards the seas of temperate or cold climates. 
A few of the recent species are found in a fossil state in the more 
recent tertiary deposits, and there are some fossil species which 
hitherto have not been noticed in a recent state. The individuality 
of the genus has also been maintained by M. Nardo, who has called 
it Cuspidaria. 
Ne#ra rostrata, Chemnitz (sp.). 
Mya rostrata, Chem., vol. xi. p. 195. vig. C, D.; Dillwyn, Cat. 
vol. 1. p. 45. 
Anatina longirostris, Lamarck, Hist. des An. sans Vert., ed. Des- 
hayes, vol. vi. p. 78. 
Neera chinensis, Gray. Griffith’s Ed. of Cuvier’s An. Kingd., 
Mollusca, pl. 2. f. 5. 
Nerea chinensis, ibid. Index. 
Corbula rostrata, Deshayes, ed. Lamarck. Note. Hanley’s species 
of Lamarck. 
Hab. China. 
Cab. Cuming. 
NERA CuUSPIDATA, Olivi (sp.). 
Tellina cuspidata, Olivi, Zool. Adriatic, p. 101. pl. 4. f. 1. 
Erycina cuspidata, Risso, Hist. Nat. des environs de Nice, t. iv. 
p- 366. f. 170. - 
Hab. As a recent shell it inhabits deep water in the Adriatic Sea ; 
Northumberland ; also the north-west coast of Sweden. Nor can I 
perceive any specific difference in the valve of a shell obtained from 
eighty-four fathoms in the China Sea, the temperature below being 
66°, and at the surface 83°, except that it is the portion of a much 
larger shell. As a fossil it is described by Risso from ‘ Trinité,’ and 
also abounds in Sicily. 
Nea#ra uyarina. WN. testd magnd, diaphand, ventricosd, anticé 
rotundatd, postic® subrostratd, rotundatd; valvis subequalibus ; 
epidermide tenui, scabrd, indutd. Long. 11; lat. 7; alt. 8 lin. 
Neera hyalina, Sowerby, ined. 
Hab. China; Mr. G. B. Sowerby. 
Cab. Cuming et Belcher. 
My regard for the conchological attainments of Mr. G. B. Sowerby 
has induced me to adopt his cabinet name for this shell. 
Ne#ra ELEGANS. UN. testd oblongd, tenui, lineis salientibus trans- 
versis ornatd ; rostro angulato, corrugato ; valvarum margine ven- 
trali acuto, simplici. Long. 8; lat. 4; alt. 43 lin. 
Hab. New Guinea, China Sea, and Singapore. On a muddy floor, 
in from seven to eighteen fathoms. 
Cab. Belcher et Cuming. 
