INDEX. 



129 



PECTEX iufequicostatus 



Michelensis 



rigidus 

 Rushdonensis 

 subspinosus 

 Wollastonensis 



PERXA foliacea 



mytiloides ... 

 obliqua 



PHOLADOMYA deltoidea 

 lyrata 

 ovulum 

 Phillips! 



PLACUNOPSIS semistriatus 

 SOWERBYA triangularis 

 Woodwardi 

 TANCREDIA gibbosa 



mactraeoides 

 similis ... 



THRACIA amygdaloidea 

 TRIGOMA arata 



Batbonica 

 Cassiope 



clythia 



compta 



elongata 

 Scarburgensis 



tri partita 



tuberculosa 



PAGE 

 32 

 34 

 31 

 33 



113 

 33 

 38 



112 



112 

 86 

 87 

 84 

 86 

 30 

 66 

 67 

 68 

 68 

 68 

 80 

 52 

 52 

 49 



48,51 

 50 

 48 

 48 

 51 

 47 



TABLE 



XXXIII, figs. I, I a. 



XXXIII, fig. 3. 



XL, fig. 16. 



XXXIII, figs. 4, 4 , l>, c. 



XL, fig. 14. 



XXXIII, figs. 2, 2 a, b, c. 

 XXXVII, figs. 3, 3 a. 



XXXII, fig. 3. 



XXXIV, figs. 22, Tin. 

 XLIT, figs. 4, 4 a. 

 XLIII, figs. 3, 3 a. 



XXXV, figs. 18, 18 a. 

 XLII, figs. 2, 2 a. 



XXXIII, figs. 9, 9 a. 

 XXXV, figs. 3, 3 a, 6. 

 XL, figs. 27, 27 a, f>, c. 

 XXXV, fig. 7 ; XXXVI, fig. 11. 

 XXXV, fig. 4. 



XXXV, fig. 9. 



XLIII, fig. 4. 



XL, fig. 2. 



XL, fig. 3. 



XXXVII, fig. 10. 



XXXVII, fig. 2 ; XL, figs. 5, 5 a. 



XL, fig. 1. 



XXXIX, figs. 6, 6 a. 



XXXVII, fig. 1. 



XL, fig. 4. 



XL, fig. 6. 



LONDON : POINTED BY J. E. ADLAKD, BAKTUOLOMBW CLO8E, S.C. 



