PLATE CXII. 
PAGE 
Fig. 1. Membranipoba nitiddla n. sp 412 
1. Surface of rather well-preserved fragment. Pawpaw Point, x 16 
Figs. 2-4. Membranipoha bifoliata n. sp 411 
2. Dorsal face of one of the two layers of zooecia. Jones Wharf. 
;< 16 
3. Surface of young specimen. Same locality, x 16 
4. Surface of an old specimen. Same locality, x 16 
Fig. 5. Mejibraxipora fistila n. sp 413 
5. The fragment upon which this species is founded. St. Mary's 
River, x 32/5 
Fig. 6. Cupularia denticulata (?) (Conrad) 414 
6. Portion of the surface of the specimen described. St. Mary's 
River, x 16 
Figs. 7a, 7b. AMPiiiBLESTRrii agellus n. sp 414 
7a. One of several small patches of this species growing on Pecten 
■maclisonius. Cove Point, x 16 
7b. A number of the zooecia of same in outline, x 34 
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