BIVALVIA. 129 
Diproponta ASTARTEA, Nyst. Crag Moll., vol. i, p. 146, Tab. XII, fig. 2 
Localities. Cor. Crag, Sutton. Red Crag, Sutton. Fluvio-marine Crag, 
Bramerton. 
The shell with this name may be the same as D. ¢rigonula, Bronn, D. apicalis, Phil., 
although this latter author keeps the two specifically separated, but our Crag fossil seems 
to have attained to larger proportions. 
The figure in the ‘Crag Mollusca’ was taken from a Red Crag specimen, but I 
mentioned (p. 146) that the Coralline Crag form differed somewhat from that of the 
Red, but not sufficiently so to justify a separation of the two, and I am still of the same 
opinion. 
The species is given in Dr. Woodward’s Norwich Crag List in White’s ‘ Directory * as 
from the Fluvio-marine Crag; and this is confirmed by a specimen of it having recently 
been obtained by Mr. Harmer from Bramerton. 
Lucrinopsis uNDAtA, Pennant. Supplement, Tab. IX, fig. 4 a—b. 
Venus unpata, Penn. Brit. Zool., ed. iv, vol. iv, p. 95, pl. lv, fig. 51. 
— «ycompra, Phil. En. Moll. Sic., vol. i, p. 44, t. iv, fig. 9. 
Luctna capuca, Seac. Catal., p. 5, fide Phil. 
Lucrnopsts unpatA, Ford. & Hanl. Brit. Moll., vol. i, p. 435, pl. xxviii, figs. 1, 2. 
— — Jeffreys. Brit. Conch., vol. ii, p. 363, 1863. 
Spec. char. L. testa tenu, orbiculato-quadrata, equilateralr, compressiuscula, levi, 
tenuissime et concentricé striata, lunula areaque non distinctis. 
Diam. 4 an inch. 
Doon Chillesford bed, Aldeby. 
Two small specimens have been found by Messrs. Crowfoot and Dowson, one of 
which is represented in the above figure. 
This species resembles LZ. Lajonkairii im outline and dental characters, but differs 
in being quite smooth or with only lines of growth without any radiating striae. 
Lucinopsts Lasonxarru, Payr. Crag Moll., vol. u, p. 148, Tab. XI, fig. 14 a—e. 
This species is very rare in the Red Crag, from which I have never met with more 
than one specimen, probably derived from the Cor. Crag, where at one time it was 
somewhat abundant. 
This may possibly be referred to Venus candida, Gmel., figured by Gualt., ‘Test.,’ 
Tab. 75, fig. u, but my shell does not very well accord with those figured by Hérnes and 
Philippi, which are smaller and much more inequilateral. The representation in the 
‘Ency. Method.,’ pl. 272, fig. 2 a, 6, corresponds with our Crag shell. 
Mr. McAndrew (whose recent death I deeply deplore, and than whom no one has 
