PLATE XX. 
Figs. 1-1. Nerita nodilirata sp. n. (p. '•><>). 
Fi.u r . 1. Apical view of a medium specimen. 
Fig. 2. Aperture view of another specimen viewed obliquely from tiie b 
so that the spire is concealed. 
Fig. 3. Dorsal view of a young individual. 
Fig. 4. Apical view of an internal cast. 
r>. Tlrritella burkartj sp. n. (p. 92). 
1). Vfrmetus cornejoi Castillo and Aguilera (p. 92). 
. 7, 8. NATICA WILLIAMS! sp. II. (p. 93). 
. '.). 10. Natica biLabiata sp. n. (p. 95). 
. 11. 12. Natica inflecta sp. n. (p. !»t). 
13. Cerithium arcuiferum sp. ii. i p. 99). * 
II. A( t.i:o.\i.\a ? maloniana sp. n (p. 99). 
. 15, 16. .\'mic\ finlayensis sp. n. (|>. 94). 
150 
1' 
IG. 
1 
'IG. 
J 
[(..- 
i 
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1- 
IGS 
1 
'IG. 
I 
'10. 
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IGF 
