374 MACTRID^. 



L, OBLONGA, Chemnitz. 



Extremely inequilateral, arcuated, of a compressed cylindraceous 

 form. 



Plate XIII. fig. 1. 



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



j\[ya oblonga, Chemnitz, Conch. Cab. vol. vi. p. 27, pi. 2, f. 12 (badly). — 



Gmelin, Syst. Nat. p. 3221. 

 Madra hians, Pijlteney, Hutchins, 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. i. p. 

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

 Lulmria ohlonya, Turt. Dithyra Brit. p. 64, pi. 5, f. 6. — Brit. Marine Conch. 

 p. 44. 

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

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

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

 Chenu, lUust. Conch. Lutraria, pi. I, f. 9. — Desh. Exp. 

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

 „ hians, Flem. Brit. Anim. p. 465. 

 Lutricola Soletwides, 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 ohlonga, which denotes a 

 character appertaining to most of the restricted genus 

 Lutraria^ and not confined to this species individually. 

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

 the Chemnitzian name, that both the description and the 

 drawing of the Mya ohlonga, 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, 



