632 
BULLETIN 106, UNITED STATES NATIONAL MUSEUM. 
Genus MAMILLOPORA Smitt, 1872. 
1872. Mamillopora Smitt. Floridan Bryozoa, Pt. 1. Kong. Svenska Vetensbaps Akademiens 
Handlingar, vol. 10, No. 11, p. 33. 
The zoarium is cupuliform. The apertura is elliptical with two submedian 
cardelles. There are some avicularia between the zooecia. The ovicelled zooecia 
are much larger; their apertura is not transverse. 
Genotype. — Mamillopora cupula Smitt, 1S72. Recent (Florida). 
Fir. 195. — Genus Mamillopora Smitt, 1872. 
A, B. Mamillopora cupula Smitt, 1872. Zoarium, natural size, and zooecia, enlarged. (After 
Smitt, 1S72.) 
