1872.] BLAKE TORKSHIEE IlfFEALIAS. 143 



Astarte GuenxH (D'Orb.)? Prod. vol. i. p. 216. \^ = consobnna, (Chap. 

 <fe Dew)]. I. The specimens from Cliff do not agree very well 

 with others referred to this species, being smaller, shorter, and 

 with the ribs confined to the umbo ; but I am not prepared to 

 sepai'ate them. 



Astarte ciiijulata (Terq.), I. c. pi. 9. fig. 6. I. 



Cardita Heherti (Terq.), Z. c. pi. 9. fig. 10. I. 



Unicardium cardioides (Ph. sp.), Geol. of Torks. pi. 14. fig. 12. I., 

 II. 



Luchia ovidum (T. & P.), Lias de I'Est de France, pi. 8. fig. 14. I. 

 A young specimen connected by invisible gradations with the 

 adult form in specimens from the zone of A. BucMcmdi. 



Protocardia PhiUppiana (^Dkx. sp.), I. c. pi. 17. fig. 6. . In almost all 

 the beds in the section at Cliif. I regard this as identical with 

 Cardium rhceticum (Mer.), and use the earlier name. 



Cardiumprofundum, n. sp. A minute species, rather oblique and 

 deep, and ornamented with numerous (20-24) ribs. Length 

 rather less than the breadth. Most nearlj'- allied to Cardium 

 Sioppanii (Renev.) ; but the ribs are more numerous, and the 

 shell is shorter. I. 



Cucullcea hettangiensis (Terq.), ?. c. pi. 10. fig. 3. 1. There are 

 some smaller shells which seem to be the young of this. These 

 specimens have both the posterior ridge and the sulcus running 

 from the umbo, which latter becomes obsolete with age. I. 



Cucidlasa navicula (Terq. & Piette), I. c. pi. 11. figs. 16, 17. I. 

 These difi'er from the type (which is apparently an old individual) 

 in being narrower and having the hinge-line straighter, but agree 

 in other respects. They cannot be separated. 



Leda texturata (Terq. & Piette), I. c. pi. 11. figs. 5-7. I. 



Modiola minima (Sow.), M. C. pi. 210. figs. 5-7. In all beds. My 

 shells agree better with some others described by foreign 

 authors ; but the species is common and characteristic, and is 

 therefore probably the same. See Phil. Geol, of Oxf. pi. 7. 

 fig. 37. 



Modiola psUonoti (Qii.), Jura, pi. 4. fig. 13. I. 



MyoGonolia psilonoti (Quenstedt), Jura, pi. 4. fig, 15. I. In naming 

 this, as well as many others, I must thankfully acknowledge 

 the valuable corrections supplied by R. Tate, Esq., F.G.S. 



Mytilus lamellosus (Terq.), I. c. pi. 10. fig. 5. I. 



Pinna semistriata (Terq.), I. c. pi. 11. fig. 1. I. 



Perna infraliasica (Qu.), Jura, pi. 4. fig. 19. I. 



Avicida longiaxis (Buckman), Geol. of Cheltenham, pi. 10. fig. 2. I. 

 The long hinge is gone in this specimen ; but the general form 

 agrees so well, and it appears probable that the corresponding 

 part luas produced, that I have no doubt of the identification. 

 ?=^. Pattersoni (Tate). 



Avicula, sp. ? (finely costated). III. 10. Lost. 



Avicula fallax (Pfliicker y Rico), 1865, Rhat. p. 15 (see Braun's 



Untere Jura, p. '3>Q), = Monotis decussata (auct. Angl.). II., III. 



Lima gigantea (Sow.), M. C. pi. 77. Common in all the beds. There 



