266 SOLECURTIDiE. 



Mr. M'Aiulrew dredged it in the Hebrides, Zetland, and 

 oft' Caithness (but never alive); it has also been met with in 

 Skye by Mr. Barlee (JeftVeys, Ann. Nat. H. vol. xix. p. 

 314). 



It ranges to the Mediterranean. 



SPURIOUS. 

 S. BiDENs, Chemnitz. 



Solen divisus, Speng. Skrivt. Nat. Selskab. vol. iii. pt. ii. (1794), p. 96, (from 

 0. Fabr. Skriv. Nat. Sclsk. vol. iv. pt. ii. pi. 10, f. 1 1, 12. 



Sole?i lUkns, Chemn. Conch. Cab, vol. xi. p. 203, pi. 198, f. 19^'.9.— IIanl. Re- 

 cent Shells, p. 16. 



Solen fragilis, Pulteney, Hutchins Hist. Dorset (1799), p. 215.— Mont. Test. 

 Brit. pp. 51, 5Go, and Suppl. p. 26 ; Dorset Catal. p. 29, 

 pi. 4, f.5. — TuRT. Conch. Diction, p. 163. — Flem. Brit.Anim. 

 p. 460. — Wood, General Conch, p. 126, pi. 29, f.4, 5; Brit. 

 Marine Conch, p. 37. — Dillw. Recent Shells, vol. i. p. 65. — 

 Index Testae, pi. 3, Solen, f. 11. — Gould, Invert. Massachus. 

 p. 31. — Conrad, Americ. Mar. Conch, pi. 4. 



Solen centralis. Say, Jour. Ac. Philadelp. vol. ii. p. 316 {fide Gould). 



Psammohia tcEnuda, Turt. Dithyra Brit. p. 85. 



Elongated-suboval, (not unlike a bean-pod,) not strong, nor 

 opaque, subequilateral, covered with a yellowish drab-coloured or 

 olivaceous yellow epidermis, which is more or less firm and glossy, 

 and is wrinkled posteriorly. Valves smooth, rather compressed, 

 contracted in the middle, white both within and without, with a 

 short and almost perpendicular broad, purplish ray under the beaks, 

 and a tinge of the same colour, occasionally ray-shaped, under the 

 ligament, besides two narrow, approximate, white oblique rays 

 behind the central one, which are visible beneath the epidermis, 

 but become obsolete in aged specimens. Ventral margin incurved, 

 not rising but well arcuated at both extremities. Dorsal edges 

 scarcely at all sloping, their declination almost equal, both very 

 slightly convex. Both extremities simply rounded, that of the 

 hinder side (which is very slightly the longer) rather the more 

 so. Hinder tooth of the right valve erect, peculiarly exj^anded 

 at its apex, and sublaterally bifid. \% — \. TF. Indies, d-c. : 

 introduced as from Dorsetshire hy Dr. Pulteney. The name of 

 Spengler, whether it he bideutatus, as asserted hy Chemnitz, or 



