202 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



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Fig. 72. — Family Scrupocellariidae Levinsen. 1909 



A-F. Scrupocellaria scruposa Linnaeus, 1758. A. Embryo. Aboral face 

 before the appearance of the furrow «t originating the terminal bud, and with 

 cells of the corona still voluminous, X 140. B. Embryo showing the extension 

 and the distinctness of the corona, X 140. C. Larva, viewed in profile. There 

 are tufts of small flagella, some crystalline stems and an aboral mesoderm, X200; 

 (A-C, after Barrois, 1877); ce, obscure portion of body cavity comprised between 

 the two branches of the stomach; C, corona; C, D, digestive cavity; est, stomach; 



