PLATE XII. 
Fig. 61.—Bugula laxa sp. nov. Habit sketch. 
Tig. 62.—B,. laxa. Portion of a branch enlarged showing form of zoc- 
cia, marginal spines (sp.) and oecia (0e.). x 50. 
Fig. 638.—Beania mirabilis Johnston. Habit sketch. 
Fig. 64.—B. mirabilis. A few zowcia enlarged to show mode of connec- 
tion (con. t.), the erect and decumbent portions, the former with margins 
armed with spines. 50. 
Fig. 65.—Beania longispinosa sp. nov. Habit sketch. 
Fig. 66.—B. longispinosa. Portion of a colony enlarged to show char- 
acter of zomcia, spines, and the owcia (0e.). 30. 
Fig. 67.—Stirparia ciliata sp. nov. Habit sketch. 
Fig. 68.—S. ciliata. Portion of the stalk enlarged showing segmentation 
(seg.), also the beginning of the zowcial branches (z@. br.). x 50. 
Fig. 69.—S. ciliata. Lower segment of stalk. X 50. 
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