TRIBE NYMPHACEA. 57 



P. Ferroensis.* Lam. 2,— Turt. B. p. 94. t. 8./. 1, 



Tellina F. Gmel 3235.— TF. t. A.f. 36.— B. p. 77. — T. Incar- 

 NATA. Pennant. t.47.f. 31.— List. t. 394./. 241.— T. Angulata. 

 Born. t. I.f. 5. Oblong, with fine transverse wrinkles, decussated 

 on the flattened anterior slope, which is sub-truncated at its ex- 

 tremity, and defined by a slight elevation in both valves, dirty-white, 

 with pink rays : beaks sub-central, ^^g. -If.— North Europe. 



P. Vespertina.* Lam. 3.— Solen V. Gni. 3228.— TF. t. 

 3./. 27. — Tellina Depressa. Don.t. 41. — T. Albida. D. p. 

 7S.— Ch.f. 59, 60.— (young) Turt. B. t. 6. f. 10. Oblong, 

 moderately thick, sub-equilateral, nearly smooth, anteriorly slightly 

 angulated ; whitish or pale straw-coloured, rayed with pale reddish 

 purple. — Variety, from Venice, more of a violet colour, with 

 darker rays : violet within. {Born. t. 2.f. 6, 7.) 1^ . . 2^. — Medi- 

 terranean and Atlantic.^ 



P. Maculosa. Lam. a.—E. t. 228. /. 2.—Sav. Egypt, t. 8. 

 f. 1. Oval-elliptic, with interrupted broad reddish livid rays, on 

 a paler round, mottled by white spots : the oblique sub-imbri- 

 cated transverse wrinkles almost become ridges at the angulated 

 anterior extremity: inside tinged with lilac, the teeth strong, and 

 the nymphse violet. — Tiger Bay, Africa. 



P. Cerulescens. Sow. G.f. 3. —Reeve, t. 53. f. 3. — Tel- 

 lina Gari ? Lin. Gmel. 3229. — Ari. Solen Amethystus. D.p. 

 68. — W. t. 3.f. 36. Oblong, hinge nearer to the posterior rounded 

 than the anterior angulated extremity ; reddish violet, with transverse 

 concentric wrinkles, which are smoother at one end than at the 

 other, and minute vertical lines seemingly under the outer sui'face : 

 nymphse prominent. 1^ • • 2h. — E. Indies. — Variety, with indis- 

 tinct rays, and reddish violet within. — The fold is regular, afid 

 not like a Tellina. 



P. Elongata. Ijam. 7. — Bel. t. 5. f. 4. — An. Sav. Egypt. 

 t. 8. f. 2. ? Elongated ovate, ventral margin not much rounded, 

 pale with light violet rays and bands ; beaks fulvous and tumid ; 

 inside with a bluish anterior ray. 3. — Red Sea. 



P. Flavicans. Lam. 8. — Bel. t. 5. f 5. Elliptic, not at all 

 angular, yellowish -flesh-colour, finely striated transversely. — 

 Variety. Sanguinolaria Livida. {Lam. — W. S. t. l.f 3.) 

 Semi-orbicular, thin, smooth, pale violet, with three white rays 

 on the posterior side. 2g. — New Holland. 



P. Alba. Lam. 10. Oval, white, with indistinct rays, thin, 

 minutely and transversely striated. '■'Closely resembling the last, 

 of which perhaps it is only a strong variety." — (Desh.) 



P. Squamosa. Latn. 9. — Bel. t. 5, f. 6. Elongated, oblong, 



^ P. Virgata, Lam. 1. and Florida, Lam. 4. belong to this 

 species. {Beshayes). 



