ZOOPHYTOLOGY. 
s 
DESCRIPTION OF PLATES. 
PLATE XX. ~ ‘ 
Fig. yO 
— 1—Membranipora antiqua, x 25 diam. 
oa : ry) ” Xx 50 d. 
3.—Lepralia sceletos, x 50 d. 
4— ,, radiata, x 50d. 
5.—An avicularium of LZ. radiata. 
6.—Cellepora Hassalii (var. a). 
—7.—Bugula ditrupe, nat. size. 
8.— ,, as x 50d. 
PLATE XXI. 
1, 2.—Aualeya fragilis. 
3—5.—Brettia pellucida. 
