PLATE III. 
1. Anhyroderma marenzelleri, n. sp. a, tables; c, basal portion of an anchor; 
d, the free end of an anchor ; e, anchor-plates ; f, smaller and larger yellowish 
or brownish deposits ; g, anchor-plate which has begun to change in colour, a 
part of it still remaining colourless. Branched figures at left hand side show 
developmental stages of tables. 
2. Trochostoma albicans, n. sp. a, tables, seen from -above; 6, side view of a 
table ; c, developmental stages of tables; d, calcareous network, forming an 
anal tooth. 
3. Trochostoma sp. (?). Different kinds of table-like plates. 
4. Caudina coriojcea, Hutton, a, wheel- or cup-shaped deposit, seen from the under 
surface ; 6, the same, seen from above ; c, deposits from the anal papillae. 
5. Cucumaria Isevigata, Verrill. a, calcareous ring ; h, calcareous plates from the 
body-wall itself ; c, terminal plate from the pedicels ; d, supporting rods. 
6. Cucumaria serrata, var. intermedia, nov. (Station 151). Several developmental 
stages of plates. 
