PLATE XVI. 
Fig. 1. Meliceritites propinqua (Mars.). Middle Chalk : Chatham. 
Some zooecia and an avicularium, x 28 dia. Gamble Coll. 
[D. 4116.] 
Fig. 2. Meliceritites propinqua (Mars.). Chalk : Dover. Part of 
a branch, x 14 dia. Bower bank Coll. [D. 4520.] 
Fig. 3. Meliceritites undata, Orb. Middle Chalk : Chatham. Distal 
end of a branch, partly in the Ceid condition ; x 16 dia. 
Gamble Coll. [D. 3996.] 
Fig. 4. Inversaria orbicularis, n.sp. Upper Greensand : Warminster. 
Fig. 4a, a branch, nat. size ; Fig. 4h, part of the same, 
X 12 dia. Baker Coll. [D. 3168.] 
Fig. 5. Inversaria laminata, n.sp. Upper Chalk : Ludsdon. Fig. 5a, 
part of a branch, x 6 dia. ; Fig. bh, a worn part of the 
same, x 1 0 dia. Bowerbank Coll. [D. 3104.] 
Fig. 6. Reptoceritites romi, n.sp. Middle Chalk : Chatham. Fig. 6a, 
whole zoarium, nat. size ; Fig. 66, part of the same, 
X 14 dia. Gamble Coll. [D. 4244.] 
Fig. 7. Reptomultelea sarissata, n.sp. Upper Chalk : Beachy Head. 
Part of the surface, x 10 dia. Presented by the author. 
[D. 7106.] 
Fig. 8. Foricula aspera. Orb. Middle Chalk ; Chatham. Some 
zooecia, x 10 dia. Gamble Coll. [D. 355.] 
