ART. 14 FOSSIL AND EECENT BRYOZOA CANU AND BASSLEE 



15 



Our specimens are bilamellar with undulated and twisted fronds. 

 The serrate denticle is rare and there are no spicules. The opercular 

 valve is thin, broad, transverse, in conformity with our drawings of 

 specimens from the Philippines. In longitudinal sections there are 

 two multiporous septulae. In transverse sections the zooecial walls 

 are thick and have two large multiporous septulae. 



Biology. — Our specimens were uncolored, but in the Philippine 

 material we have found some of a brown-violet color. This is a 

 species of shallow water (10 to 50 meters) generally. 

 Occurrence. — Albatross Station D. 2405, Gulf o 

 Mexico; 28° 45' 00" N.; 85° 02' 

 00" W.; 30 fms.; gray sand, 

 broken coral. 

 Albatross Station D. 2380, Gulf of 

 Mexico; 29° 28' 00" N.; 87° 56' 

 00" W.; 27 fms.; gray sand, 

 broken shells. 

 Tortugas, 16 meters (Osburn, 

 1914); Florida, 47 meters (Smitt). 

 Plesiotype.— Cat. No. 7445, U.S.N.M. 



Genus CUPULADRIA Canu and Bassler, 1920 



CUPULADRIA CANARIENSIS Busk, 1852 



Plate 1, Figures 7-9; text Figure 2 



1914. Cupularia guineensis Osbtjen, The Bryozoa of 



the Tortugas Islands, Florida. Publication 



Carnegie Institution, Washington, No. 182, 



p. 194 (American bibliography). 

 1919. Cupuladria canariensis Canu and Bassler, Ge- 

 ology and Paleontology of the West Indies, 



Bryozoa. Publication Carnegie Institution, 



Washington, No. 291, p. 78, pi. 1, figs. 8-10. 



(Bibliography and geologic distribution.) 

 1923. Cupuladria canariensis Canu and Bassler 



North American Later Tertiary and Quater^ 



nary Bryozoa. Bull. 125, U. S. National 



Museum, p. 28, pi. 1, figs. 7-9. 



Some hundreds of specimens, recent and fossil, have been examined 

 and studied by us, and we find it still impossible to see any difference 

 between Cupuladria canariensis and Cupuladria guineensis Busk, 

 1852. 



The colonies are generally cupuliform, but some are conical; their 

 diameter is quite variable. Each polygonal prism of the interior 

 face is rectangular and is perforated by six rectangular pores. The 

 latter are frequently four in number and sometimes only two; these 

 variations can be observed on the same specimen. 



Fig . 1 . — Acanthodesia 



SAVAKTI SAVIGNY 



AUDOUiN, 1826. Long- 

 itudinal SECTION, X 85, 



EXHIBITING THE TWO 

 LATEEAL SEPTULAE 



