136 
OUGANIC REMAINS. 
Ammonites— 28. sigmifer ... PL XIII. fig. 4. In calcareous nodules. 
29. Ilawskerensis (Young & Bird) fig. 8. Hard shale and calcareous 
nodules, Hawsker. 
30. Conybeari (Min. Conch.) fig. 5 . Nodules and hard shale. 
31. Bucklandi (Min. Conch.) PI. XIV. fig. 13. Lower shale, Robin Hood's 
32. obtusus (Min. Conch, tab. clxvii.) 
Redcarensis ? (Young and Bird) 
33. W alcottii (Min. Conch, tab. cvi.) 
36. * nitescens (Young and Bird) 
37- * obliquatus (Young and Bird) 
38. Mulgravius (Young and Bird) 
39. exaratus (Young and Bird) 
40. Lythensis (Young and Bird) 
41. * Boulbiensis (Young and Bird) 
42. * impendens (Young and Bird) 
43. concavus ? (Min. Conch, tab. xciv.) 
44. elegans ? (Min. Conch.) 
Bay, and Redcar. 
} 
Ditto. 
Upper shale. 
i.) 
Ditto, and Peak. 
fig. 10. 
“ Hard bands, Hawsker.” 
“ Lias bands.” 
Ditto. 
Upper shale, Lyth, Salt- 
wick, &c. 
%• 7 - 
Boulby, &c. 
fig. 6. 
Upper shale, Boulby, &e. 
Ditto. 
Ditto. 
Upper shale. 
fig. 12. 
Ditto. 
CRUSTACEA AND ANNULOSA. 
Two species of astacus ? have been found by Mr. Williamson, in the upper part 
of the lias shale ; one of them strongly resembles that of the Oxford clay ; the other 
is similar to astacus rostratus, PI. IV. fig. 20. 
Serpula capitata PI. XIV. fig. 6. Lower shale, Robin Hood’s 
Bay. 
Dentalium gigantcum ... ... fig. 8. Marlstone, common. 
REMAINS OF VERTEBRAL ANIMALS. 
A large thick fish is rarely found in the lias shale, with solid bony scales. Pleads, 
vertebra, paddles, and scattered bones of saurian animals have been frequently ex- 
tracted from the upper shale, and several tolerably complete skeletons have been pre- 
served. There appear to be several species, but farther inquiries must be instituted on 
i hese ammonites unknown to 
me, are not figured by the authors who have named them. 
