PLATE XXXVII. 
PrctEN (continued). 
Fias. 
1—3. P. (Aquipecten) sarumensis, Woods. A. quadratus zone, Kast Harnham, 
Salisbury. Dr. Blackmore’s Collection. Right valves. la, x 4; 
1b, antero-ventral portion xX 8. 2a, x 4; 26, anterior part of a x 6. 
35 ae (Ret925) 
4A—8. P. (diquipecten) campaniensis, Orb. (P. 192.) 
4. Norwich Museum, No. 2044. B. mucronata zone, Norwich. Right valve x 2. 
5. Dr. Blackmore’s Collection. Uzintacrinus zone, Devizes Road, Salisbury. Right 
valve xX 4. 
6, 7. Same Collection. B. mucronata zone, Clarendon, near Salisbury. Right valves. 
(Oh OW HS tin OM 
8. Same Collection. A. quadratus zone, East Harnham. Left valve x 4. 
9—11. P. (AMquipecten) arlesiensis, Woods. Chalk Marl, Folkestone. 9, Wilt- 
shire Collection, Woodwardian Museum. Right valve x 4. 10, 
Museum of Practical Geology, No. 562. Left valve x 3. 11, Same 
Museum, No. 562. Left valve; mid-ventral part x 6. (P. 194.) 
12—15. P. (Aquipecten) pulchellus, Nilss. Upper Chalk, Trimingham. (P. 194.) 
12. Museum of Practical Geology, No. 8013 (collected by Mr. C. Reid). a, right 
valve x 3; b, ventral part of the same x 6; c, part of dorsal third x 6. 
13—15. Mr. R. M. Brydone’s Collection. Left valves. 13, x 3. 14a, natural size ; 
146, part near the antero-ventral margin x 5. 15, x 2. 
16. P. (Camptonectes) curvatus, Gein. Chloritic Marl, Eastbourne. Wood- 
wardian Museum. Right valve x 3. (P. 159.) 
