PLATE III. 



Figures 5ctr-i. — Lepidopleurus dorsuosus, n. sp. 



Figure 5a. — Side view of the three anterior valves and 



ligament x 6 diam. 

 ,, 56. — Under surface of anterior valve x 7 diam. 

 „ he. — Half of upper surface of an intermediate 



valve x 7 diam. 

 ,, 5d. — Half of under surface of an intermediate 



valve x 7 diarn. 



Figure 5e. - — Upper surface of posterior valve x 7 diam. 

 ,, 5/ — Under surface of posterior valve x 7 diam. 

 „ 5g. — Portion of upper surface of girdle, greatly 



magnified. 

 „ 5h. — Portion of under surface of girdle, greatly 

 magnified. 

 5i. — -Angle of an intermediate valve x 7 diam. 



Figures 6a-i. — Lepidopleurus dallii, n. sp. 



Figure 6a. — Upper surface of anterior valve x 5 diam. 

 „ 66. — Under surface of anterior valve x 5 diam. 

 „ 6c. — Upper surface of an intermediate valve x 5 



diam. 

 ,, 6d. — Under surface of an intermediate valve x 5 



diam. 



Figure 6e. — Upper surface of posterior valve x 5 diam. 

 „ 6/. — Under surface of posterior valve x 5 diam. 

 „ 6g. — Half of upper surface of an intermediate 



valve x 10 diam. 

 ., 6h. — Portion of girdle. 

 ,, 6i. — Angle of an intermediate valve x 10 diam. 



Figures 7a-e. — Chiton murrayi, n. sp. 



Figure 7a. — Under surface of anterior valve x 7 \ diam. 

 „ 76. — Half of under surface of an intermediate 



valve x 7^ diam. 

 ,, 7c. — Under surface of posterior valve x 1\ diam. 



Figure 7c?. — Portion of upper surface of the shell, 

 highly magnified. 

 „ 7e. — Isolated scales from girdle, highly mag- 

 nified. 



Figures Sa-g. 



Figure 8a. — Upper surface of anterior valve x 4 

 diam. 

 „ 86. — Under surface of anterior valve x 4 



diam. 

 „ 8c. — Upper surface of an intermediate valve x 4 

 diam. 



Plaxiphora carpenteri, n. sp 



Figure 8«*. 



Under surface of an intermediate valve x 4 



diam. 

 8e. —Upper surface of posterior valve x 4 diam. 

 8/ —Under surface of posterior valve x 4 diam. 

 8g. — Half of upper surface of second valve x 8 



diam. 



Figures 9c&-m. — Oryptoplax striatus, Lam. 2 diam. 



,, lOa-^n. — Cryptoplax oculaUts, Quoy and Gaiin. x4 diam. 



,, lla-m. — Cryptoplax burrowi, E. A. Smith. These figures were drawn by 



Mr Smith x 3 diam. 

 „ 12«-m. — Cryptoplax larvceformis, Blainv., natural size. 



Figure a. ■ — Upper surface of first valve. 

 „ 6. — Under surface of first valve. 

 „ c. — Side view of first valve. 

 ., d. — Upper surface of second valve. 

 ,, e. — Under surface of second valve. 

 „ /. — Side view of second valve. 



Figures 13, 13a-c- 



Figure 13. — Side view, natural size. 

 ,, 13a. — Under surface, natural size. 



Figure g. — Upper surface of third valve. 

 ,, h. — Under surface of third valve. 

 „ i. ■ — Side view of third valve. 

 ,, k. — Upper surface of last valve. 

 ,, I. — Under surface of last valve. 

 „ in. — Side view of last valve. 



-Plaxiphora simplex, Carp. MS. 



Figure - 136. — Sutural tuft, greatly magnified. 

 ,, 13c. — Peripheral tufts, greatly magnified. 



