NORTH AMERICAN LATER TERTIARY AND QUATERNARY BRYOZOA. 87 



Genus ERINA Canu, 1908. 



1908. Erina Canu, Iconographie des Bryozoaires fossiles de I'Argentine, pt. 1, Anales del Museo 

 Nacional de Buenos Aires, vol. 17, p. 273. 



The opesium is round, without oral denticles. 

 Genotype. — Erina patagonica Canu, 1908. Patagonian. 



Genus MELICERITA Milne-Edwards, 1836. 



1836. Melicerita Milne-Edwards, Recherches anatomiques sur les Eschares, Annales des Sciences 

 Naturelles, Zoologie, ser. 2, vol. 6, p. 26. 



The zoarium is bilamellar and not articulated. 



Genotype. — Melicerita charlesworthi Mihie-Y.dw&Tds, 1836. Astian. 



Genus EUGINOMA Jullien, 1882. 



1882. Euginoma Jullien, Dragages du Travailleur: Bryozoaires, Bulletin Society Zoologique de 

 France, vol. 7, p. 520. 



The zooecia are all turned forward and arranged in longitudinal rows ; they are 

 hexagonal, limited by a suture in relief; the orifice is semicircular, deprived of spines; 

 the ovicell is formed by the raising of the wall of two zooecia superior to that which 

 bears it; it is divided into two halves by the sutural line of these zooecia; its opening, 

 like a policeman's helmet, is entirely above and in front of the orifice. Dorsal face 

 of the zoarium is divided into trapezoidal areas which are the dorsal faces of two 

 zooecia. (After Jullien.) 



Genotype. — Euginoma vermiformis Jullien, 1882. Recent. 



THE COSTULAE. 



Family CRIBRILINIDAE Hincks, 1880. 



Genus CRIBRILINA Gray, 1848. 



(For description see Bulletin 106, U. S. National Museum, p. 290.) 



CRIBRILINA PUNCTATA Hassall, 1841. 



Plate 15, fig. 11. 



1841. Lepralia punctata Hassall, Supplement to Catalogue of Irish Zoophytes, Annals and Maga- 

 zine Natural Historj-, vol. 7, p. 368, pi. 9, fig. 7. 



1889. Cribrilina punctata Jelly, A Synonymic Catalogue of the Recent Marine Br>-ozoa, p. 67 

 (synonymy). 



1901. Cribrilina {Arachnopusia) punctata Nbviani, Briozoi neogenici della Calabrie, Paleonto- 

 graphia Italica, vol. 6, p. 174 (local bibliography). 



1904. Lepralia rnarylandica Ulrich and Bassleh, Maryland Geological Survey, Miocene, p. 425, 



pi. 117, fig. 2. 



1905. Cribrilina (Arachnopusia) punctata Neviaki, Briozoi fossili di Carrubare (Calabria), Bol- 



lettino Societa Geologica Italiana, vol. 23, p. 523. 



1907. Cribrilina punctata Calvet, Bryozoaires, Expedition scientifique du Trapailleur et du 

 Talisman, p. 398 (bibliography). 



1912. Cribrilina punctata Osburn, The Bryozoa of the Woods Hole Region, Bulletin Bureau Fish- 

 eries, vol. 30, 1910, p. 232, pi. 24, "fig. 41 (bibliography). 



