374 MACTRIDiE. 



L. OBLONGA, Chemnitz. 



Extremely inequilateral, arcuated, of a compressed cylindiaceous 

 form. 



PlateXIII. fig. ]. 



Chama magna. Da Costa, Brit. Conch, p. 230, pi. 17, f 4. 



Afya oblonya, Chemnitz, Conch. Cab. vol. vi. p. '27, pi. 2, f. 12 (badly). — 



Gmelin, Syst. Nat. p. 3221, 

 JMadra hkin^, Pijlteney, Ilutchins, Hist. Dorset, p. 32. — Mont. Test. Brit. p. 

 101. — DoNov. British Shells, vol. iv. pi. 140. — Linn. Trans, 

 vol. viii. p. 74. — Dorset Catalog, p. 33, pi. 2, f. 4.— Turt. 

 Conch. Diction, p. 85, f. 41. — Dillw. Recent Shells, vol. 1. p. 

 146. — Index Testaceol. pi. 6, f. 37. 

 Lutruriu ohlomja, Turt. Dithyra Brit. p. 64, pi. 5, f. 6.— Brit. Alarine Conch, 

 p. 44. 

 „ Solenoides, Lam. Anim. s. Vert. (ed. Desh.) vol. vi. p. 90. — Brown, 

 111. Conch. G. B. p. 109, pi. 43, f. 1.—Sowerby, Conch. 

 Manual, f. 78. — Hanl. Recent Shells, vol. i. p. 26.— 

 Chenu, Illust. Conch. Lutraria, pi. 1, f. 9. — Desh. Exp. 

 Sc. Algerie. Moll. pi. 31, 32 (anatomy). 

 „ Mans, Flem. Brit. Anim. p. 465. 

 L7iiricoht Solenoides, Blainv. Malacol. pi. 77, f. 3. 



Were it allowable, we should have preferred the signifi- 

 cant appellation of Solenoides, bestowed upon this species 

 by Lamarck, to its prior name of ohloncfa, which denotes a 

 character appertaining to most of the restricted genus 

 Lutraria, and not confined to this species individually. 

 We may remark, as an excuse for the ordinary neglect of 

 the Chemnitzian name, that both the description and the 

 drawing of the Mya oMouf/a, are most infelicitously ex- 

 ecuted. 



Of an elongated oblong and subarcuated form, this 

 species may readily be distinguished from the preceding, by 

 the incurvation of its hinder dorsal edge, and the great in- 

 equality of its sides. It is solid, opaque, coarse-looking, 

 and subventricose ; the convexity, however, is diffused, 



