260 Dr. FiTTON on the Strata below the Chalk. 



Ct/pris granulosa. PI. XXI. fig. 4. Between Ballard's Farm and Catherine Ford : 

 with Cyclas, in slaty Purbeck stone; also with Cyclas and Modiola, in gray 

 freshwater limestone. Dashlet, between Penthurst and Teffont. 



C Valdensis. PI. XXI. fig. 1. Vale of Wardour. Ladydown Tile-stone 



pits : with a variety of Cj/clas media. Between Teffont and Penthurst. Be- 

 tween Ham-cross and Chicksgrove ; Teffont ; and stone pits south of Ridge ; 

 with Cyclas media. 



Modiola. Dashlet; between Penthurst and Teffont: in decomposed slaty limestone. 

 Between Dallard's Farm and Catherine Ford : with Cypris, in gray freshwater 

 limestone. 



Osirea distorta. PI. XXII. fig. 2. Quarry, below Fovant ; in very compact stone, 

 like mountain limestone. Between Dallard's Farm and Catherine Ford : with 

 Cyclas. Teffont : with Cyclas media., and C. memhranacea. 



Paludina elongata. Between Ham-cross and Chicksgrove : with Cyclas media and 

 Cypris Valdensis. 



P a minute species ; as at Combe-wood, Oxfordshire. Stone-pit south of 



Ridge. 



Fish. Remains of the following species of Agassiz : — 



Lepidotus minor. Ladydown Tile-stone pits: some very fine specimens, like 



those of the Isle of Purbeck. 

 Pholidophorus ornatus, ^g. Imperfect remains of a new species. Chicksgrove- 



mill Quarry : In white slaty limestone, full of fragments of shells. 



[Portland Stone."] 



Ammonites hiplex. Tisbury : in chert; the shell chalcedony. 



A Brodicei. Fonthill Gifford. 



A giganteus. Vale of Wardour : in chalcedony. Chicksgrove-mill Quarry : 



in gray limestone like chalk. Same place : in stone coated with rhomboidal car- 

 bonate of lime, Tisbury: in chert; the shell chalcedony. 

 Astrea Tisburiensis (Madrepora Tisburiensis of Miss Benett). In dark chalcedonic 



chert: a concretional bed subordinate to the Portland stone, near Tisbury. 

 Astarte cuneata. Chicksgrove-mill Quarry. Chilmark Quarry. Tisbury: with 



Cerithium ? excavatum. 

 Buccinum naticoide. PI. XXIII. fig. 4. Vale of Wardour. 

 Cardium dissimile. Vale of Wardour. From the lane above Berston : with Trigonia 



gibbosa. Tisbury : in white uniform chalk-like stone. 

 Cerithium "i excavatum {oWm Turritella). Vale of Wardour. Tisbury: vi\i\i Astarte 



cuneata and Trigonia gibbosa. Ladydown. 

 Cancer 'i ov Astacu si . Claw, with Trigonia gibbosa. In slaty limestone. Lane above 



Benston. 

 Cytherea'i rugosa. PI. XXII. fig. 13. Chicksgrove-mill Quarry. 

 Echinus. Tisbury. 



