Dr. FiTTON on the Strata below the Chalk. 261 



Exogyra (new). Vale of Wardour. Portland-stone? 



Lucina Portlandica. PI. XXII. fig. 12. Lawn Quarry: in sandy Portland stone. 



Modiola. Vale of Wardour: in compact sandy Portland stone, Bevis's Quarry near 

 Tisbury ; with Ostrea, Serpula, and palate bones offish. 



Mt/tilus. Ashley Wood, near Fonthill Gilford: in compact Portland rock. 



Natica e\ega.ns. PI. XXIII. fig. 3. Miss Bennett's collection. Vale of Wardour. 



Nerita sinuosa. Chilmark Quarry and Tisbury. 



Ostrea expansa. Vale of Wardour ; Chicksgrove-mill Quarry ; in white chalk-like 

 stone. 



O falcata. PI. XXIII. fig. 1. Chicksgrove-mill Quarry:— Top of the Portland. 



O undulata. Vale of Wardour : in white chalk-like stone. 



Pectenlamellosus. Vale of Wardour. Chicksgrove-mill Quarry. Shaver's Bridge, 

 Tisbury Parish : with Ostrea, very young. Fonthill. Lawn Quarry ; with 

 Lucina Portlandica. in sandy Portland stone. 



Serpula. Bevis's Quarry, near Tisbury: with Modiola, and palate-bones offish; 

 in compact sandy Portland stone. 



Terehra Portlandica. PI. XXIII. fig. 6. Tisbury : casts of interior, not effervescent. 



Trigonia gibbosa. Vale of Wardour : Castleditches ; with a minute Turbo. A lane 

 above Benston, near Chicksgrove ; with Cardium dissimile, crab's claws, and an 

 Ostrea, in white chalk-like limestone. Chicksgrove-mill Quarry. Teffont. Tis- 

 bury. Fonthill Gifford: in chalcedony. 



T incurva. (Miss Benett.) Vale of Wardour. 



TwrJo (minute.) Castleditches: with Trigonia gibbosa. 



Turritella excavata. (See Cerithium.) 



Fish, part of a palate. Tisbury. 



{^Portland Sand (or Kimmcridge Clay ?).] 



Ammonites biplex. Chicksgrove Mill : in sandy clay at the bottom of the quarry. 



A Cast. Brickyard near Shaftesbury. 



Panopcea depressa. (Mj/a, Min. Con.). PI. XXIII. tig. 9. Near Shaftesbury : in clay. 

 Some specimens very large. 



North Wiltshire. 



(139.) Devkes, Calne. — My knowledge of the country from the Vale of 

 Wardour to the vicinity of Calne is due to my friend Mr. Lonsdale, with 

 whom I had the pleasure of going over a part of it, in the year 1827. 

 Mr. Lonsdale himself has since published a very important paper on the 

 oolitic district of Bath, which is accompanied by sections, three of which in- 

 clude the strata under consideration in this paper*; and he has been so kind 



* Geol. Trans., 2nd Series, vol. iii. p. 243, Plate XXXII. The course of these sections is ex- 

 pressed in the Map, Plate IX., by the dotted lines adjacent to No. 15. and 16. 



