PLATE XXIX. 
PECTEN (continued). 
Fias. 
1—3. P. (Camptonectes) Cottaldinus, VOrb. Leckenby Collection, Woodwardian 
Museum. (P. 156.) 
1. Lower Greensand, Whale Chine. Right valve. 
2. Perna-bed, Atherfield. a, left valve; b, part of the same above the middle of 
the valve x 3. 
3. Perna-bed, Atherfield. Left valve. a, part near the middle of the dorsal third 
x 3; b, part of the anterior ear x 4. 
4—6. P. (Camptonectes) striato-punctatus, Rom. (P. 157.) 
4. Speeton Clay (D1). Mr. Lamplugh’s Collection. a, part of left valve; b, part 
of same X 3. 
5, Same horizon, etc. Anterior left ear x 3. 
6. Claxby Ironstone, Benniworth Haven. Woodwardian Museum. Part of left 
valve. 
7. P. (Camptonectes) curvatus, Gem. Greensand, Great Haldon. Museum of 
Practical Geology, No. R4780. Left valve. «a, natural size; b, same 
Seay (esl) 
8. P. (Camptonectes) dubrisiensis, Woods. Chalk Marl, Dover. British 
Museum, No. 38243. a, right valve; b, left valve; c, anterior ear of 
bx 2. (P. 162.) 
