64 PROCEEDINGS OF THE NATIONAL, MUSEUM vol.72 



Occurrence. — Albatross Station D. 2619, western Atlantic; 33° 38' 

 N.; 77° 36' W.; 15 fms.; coarse yellow sand and broken shells. 

 Holotype.— Cat. No. 7512, U.S.N.M. 



Genus CUPULARIA Lamouroux, 1821 



CUPULARIA DOMA D'Orbigny, 1852 



Plate 6, Figures 2-5 



1923. Cupnlaria doma Canu and Bassler, North America Later Tertiary 

 and Quaternary Bryozoa. Bull. 125, U. S. National Museuna, p. 

 77, pi. 1, fig. 18, pi. 15, figs. 1-5. 



The reader is referred to our work of 1923 for the bibliography and 

 remarks upon this species which, although associated in the recent 

 and ancient Gulf of Mexico with the widespread C. ur/ibellata De- 

 france, 1823, is readily distinguished by its more conical form and its 

 spinous processes not joined together. 



Occurrence.— Albatross Station D. 2639, Straits of Florida; 25° 04' 

 50" N.; 80° 15' 10" W.; 56 fms.; coral sand. Florida, 47 meters 

 (Smitt) . 



Plesioty pes. —Csii. No. 7830, U.S.N.M. 



CUPULARIA UMBELLATA Defrance, 1823 



Plate 7, Figures 1-3 



1914. Cup%daria lowei Osburn, Bryozoa of the Tortugas Islands, Florida. 

 Publication Carnegie Institution, Washington, no. 182, p. 194. 



Our specimens from the Gulf of Mexico are not as fully developed 

 as the European fossil specimens, for in the French Redonnian it is 

 not rare to find zoaria 1 centimeter in diameter. This species is so 

 common that we are convinced many variations are possible. It 

 appeared with the inauguration of the Miocene and it has rapidly 

 propagated in the Atlantic, but on the American side is now much 

 less common and is in course of extinction. 



Occurrence. — Various localities in the Gulf of Mexico; Tortugas, 

 19-35 meters (Osburn); Florida, 47 meters (Smitt). Atlantic; Beau- 

 fort, N. C. (Osburn); Cape Fear River, 11 meters (Smitt). 



Plesioiypes.— Cat. No. 7831, U.S.N.M. 



Family STEGANOPORELLIDAE Hincks, 1884 



Genus STEGANOFOflELLA Smitt, 1873 



STEGANOPORELLA MAGNILABRIS Busk, 1854 



Plate 7, Figures 8-10; Plate 32, Figure 6 



1923. Steganoporella magnilabris Canu and Basbler, North American 

 Later Tertiary and Quaternary Bryozoa. Bull. 125, U. S, National 

 Museum, p. 63, pi. 14, figs. 12, 13. (Bibliography.) 



1926. Steganoporella magnilabris Harmer, Polyzoa "Siboga" Expedition, 

 pt. 2, p. 277, pi. 17, figs. 1-3, 7, 9, 12, text fig. 10. (Bibliography 

 and anatomical studies.) 



