PROF. E. FORBES ON LOWER GREENSAND FOSSILS. 249 



82. Lima undata Desh. in Leym. pi. 8. f. 8. ? 



Loc. Maidstone ; and from Atherfield in Dr. Fitton's collection. 



83. Lima expansa. Sp. nov. PI. 3. f. 11. 



L. testa late ovata, convexiuscula, expansa, obliqua, radiato- 

 costata, costis tenuibus distantibus. 



Lon. 1 unc. Lat. O^f unc. 



A broad, ovate, depressed shell, much expanded both above and 

 below, oblique, the surface ornamented with fine distant longi- 

 tudinal ribs. 



Loc. Hythe. 



84. Lima lingua. Sp. nov. PI. 3. f. 10. 



L. testa elongata, convexiuscula, subobliqua (lateribus sub- 

 parallelis), radiato-costata (costis numerosis tenuibus), trans- 

 verseque striata. 



Lon. 0^ unc. Lat. 0^ unc. 



Nearly allied to the last, but more elongated and narrow ; the 

 surface ornamented with numerous fine longitudinal ribs crossed 

 by transverse striae. It bears a close resemblance to the recent 

 Lima tenera. 



Loc. Hythe. 



85. Pecten obliquus Sow. M. C. t. 370. f. 2. 

 Syn. P. inter striatus Leym. pi. 13. f. 1. a, b. 

 Loc. Reigate, Atherfield, Culver, Peasemarsh. 



86. Pecten quinque-costatus Sow. M. C. t. 56. f. 4 — 8. 



Loc. Hythe, Peasemarsh, Maidstone, Atherfield, Shanklin. 



87. Pecten orbicularis Sow. M. C. pi. 186. 



Loc. Risborough, Sandgate, Atherfield, Culver. 



88. Pecten circularis Goldfuss, t. 99. f. 10. ? ? 

 Loc. Whale Chine, Isle of Wight. 



Note. The specimen in ihe Geological Society's museum, which T have 

 referred with doubt to the species of Goldfuss, is a thick shell allied to P. orbi- 

 cularis, which it resembles in form, but differs in the production, sinuation, and 

 sulcation of one of the auricles of one valve. The auricles are unequal in each 

 valve. The surface is worn ; but there are distinct concentric furrows and 

 traces of fine regular ridges. It measures two inches and a half in length and 

 the same in breadth. 



Ro'emer quotes this species from the corresponding strata of Hilsthon and 

 Hilsconglomerat, but confounds it with Pecten cinctus of Sowerby, an oolitic 

 form. 



89. Plicatula placuncea Lamarck. (Leym. pi. 13. f. 2.) 

 Loc. Maidstone, Hythe, Atherfield. 



