BIVALVIA. 125 
Turton, in his ‘ British Bivalves,’ p. 258, states the animal of this species to be 
viviparous, and that he found many specimens filled with perfectly formed young ones, 
similar in habit to the Genus Cyc/as. 
8. KELLIA RUBRA, Montague. Tab. XI, fig. 10. 
Carpium RuBRUM. Mont. Test. Brit., p. 83, t. 27, fig. 4, 1803. 
— — Mat. and Rack. Linn. Trans., vol. viii, p. 66. 
— — W. Wood. Ind. Test., p. 24, 1825. 
TELLINA RUBRA, Turt. Conch. Dict., p. 168. 
KeLii1a ruBRA. Turt. Brit, Biv., pp. 57 & 258, pl, 11, figs. 7, 8, 1822. 
— — Flem. Brit. An., p. 430, 1828. 
— — Gould. Inv. Massach., p. 60, 1841. 
—_ — Thorpe. Brit. Mar. Conch., p. 51, 1844, 
— a Alder. Cat. Moll. North. and Durh., p. 94, 1848. 
— — Forb. and Hanl. Hist. Brit. Moll., vol. ii, p. 94, pl. 36, figs. 5—7, and 
pl. O, fig. 3, 1849. 
LAs#A RUBRA. Brown. Illust. Conch. Gr. Brit., pl. 20, figs. 18, 19, 1827. 
Bornta sEMINULUM. Phil. En. Moll. Sic., vol. i, p. 14, pl. 1, fig. 16. 
— _— Desh. Exped. Scient. Algerie. Moll., pl. 43, figs. 8—11, and pl. 43 A, 
figs. 6, 8. 
Poronta RUBRA, Recluz. Rev. Cuy. Zool., p. 175, 1843. 
= _ Hanley in Brit. Mar. Conch. Syst. Ind., p. xxy, 1844. 
Spec. Char. Testa minutd, ovata, tumidd, subinequilaterdli levigata, utrinque rotundatd, 
umbonibus prominulis. 
Shell small, ovate, tumid, slightly inequilateral, smooth; both sides rounded, 
umbones rather prominent. 
Diameter, —,th of an inch. 
Locality. Coralline Crag, Sutton, 
Recent, Mediteranean, Britain, North America. 
A single slightly injured specimen from the rich Depot of small shells in the 
Coralline Crag at Sutton is all that I have been able to obtain; it seems to have the 
essential characters of the recent species, to which it is here referred, and as such 
is introduced as an identity, although a few more and better specimens would be 
desirable for confirmation: the character in which the preceding species seems most 
to differ from the recent shell, and upon which its specific separation was founded, is 
its being more inequilateral, and among all my numerous specimens there may be 
observed a very general uniformity in that respect. The specimen now under notice has 
the hinge more in the centre, placed as in the recent shell, the two lateral teeth forming 
a very obtuse angle with the umbo; they appear rather less in size than those of the 
British specimens, and these are said to be less developed than in the Mediterranean shell. 
This is said by Mr. Clark (Mag. Nat. Hist., 1849,) to be the most terrestial of 
Bivalves, its habitat being generally in Lichina pygmea, and that often from ten to 
twenty feet above the level of the highest spring-tides. 
