NORTH AMERICAN LATER TERTIARY AND QUATERNARY BRYOZOA. 29 



187'^ Membranipora canariensis Smitt, Floridan Bryozoa, collected by Count LF. de Pourtales, 



nt 1 Konsrl. Svenska Vetenskaps-Akademiena Handhngar, vol. 10, fso. 11, p.iU- 

 1908 Cupularia canariensis Canu, Iconographie des Bryozoaires fossiles de L'Argentme, Amies 



del Museo Nacional de Buenos Mres, vol. 17, p. 275, pi. 5, figs. 8-10 (gives bibliography 

 1009 Cup^daria ouineensi, Norman, The Polyzoa of Madeira and neighboring Islands, Journal 



Linnean'Society London, Zoology, vol. 30, p. 289, pi. 37, figs. 2-6. p,i„,p,p 



1913 Cupularia canariensis Canu, Contributions a I'etude des Bryozoaires follies IV, Pliocene 



d'Al-er, Bulletin Societ6 G6ologique de France, ser. 4, vol. 13, pp. 124, 1^8. 

 1914. Cr^puhria guiniensis Osburn, The Br>-ozoa of the Tortugas Islands, Florida, Publication 



Carnegielnstitutionof Washington, No. 182, p. 194. , „ ^^ , , , -e „„„^ 



1916. Cupularia canariensis Canu, Bryozoaires fossiles des Terraines du Sud-Ouest de ^^ France, 



9, Aquitanien, Bulletin de la Soci6t6 G§ologique de France, ser. 4 vol. 16, p. 137, pi. i, 



1919. CrfpuMria canariensis Canu and Bassler, Geology and Paleontology of the West Indies, 

 Bryozoa, Publication Carnegie Institution of Washington, no. 291, p. ;8, pi. 1, fags 8-10. 



This abundant, well-known fossil and recent species, distinguished by its free, 

 cupuliform zoarium ^^^th the zooecia on the convex side having a membramporoid 

 opesium and vibracula and with the concave side marked by distinct polygonal 

 areas pierced by a few large pores, has been found fossil at number of American 

 locaUties starting in the Lower Miocene and continuing to J^^^ /"-^^^^J^!,™" , /" 

 its geological occurrence it agrees with Cupularm umheUata Defrance, 1823, which 



like-^vise begins in the Lower Miocene. ., , , t, •, t?^,.^,. 



Occurrence.~l.oweT Miocene (Chipola marl): 1 nule below Badeys Ferr> , 

 Chipola River, Florida (rare). Lower Miocene (Bowden horizon): Bowden, 

 Jamaica (rare) ; Rio Gurabo, Rio Cana, and Cercado de Mao, Santo Domingo (rare ; 

 and Port Limon, Costa Rica (common). Lower Miocene (Ga un orma^on). 

 Banana River, Costa Rica (rare). Miocene (Choctowatchee marl) Jackson Bluff, 

 Ocklocknee River, 25 miles southwest of Tallahassee, Florida (rare). Phocene 

 (Caloosahatchee marl): Monroe County, Florida (rare). . „ ,- s „ , .• ^ 



Geological distribution.-Burdigdim of Bordeaux (Canu coUection) ; Helvetian 

 of France (Canu) and Spain (DeAngelis); Tortonian of Austria-Hungary (Reuss) 

 and Italy (Seguenza); Plaisancian of Italy (Manzoni), England (Busk) Spam 

 (DeAngelis) and Algeria (Canu); Astian of Italy (Neviam Canu) ; ^icdian of 

 Rhodes (Manzoni) and Italy (Neviani); Quaternary of Italy (Neviani) and Argen- 

 tina (Canu); Miocene of Australia? (Waters). 



Plesiotypes. —C&t. No. 68419-68424, U.S.N.M. 



CUPULADRIA BIPOBOSA, new species. 



Plate 47, figs. 1,2. 



Pescription.-The zoarium is orbicular. The zooecia are distmct, large, elon- 

 gated or transverse, large or small, generally rhomboidal; the opesium is regular, 

 oval, variable in form in the wide zooecia. The mterzooecial vibraculum is very 

 large and auriculate. On the inner face the zooecia are rectangular and each one 



^^^'ZiSf-TWs interesting new species differs from Cupuladria canariensis 

 Busk, 1852, in its larger zooecia, which bear on the inner face only two large pores. 



