﻿118 BULLETIN 103^ UNITED STATES NATIONAL MUSEUM. 



little convex. Sometimes there is a small interzocecial fusiform 



avicularium ( ? ) . 



, ^ . fAo= 0.60-0.70 mm 

 MeasuTements. — (Jpesium \ , r.^r^r..t: 



^ \lo=- 0.30-0.45 mm 



„ . Zs=0.75-0.95mm 



ZOOeClUm {-. (^^r^ r^^r^ 



[^2= 0.50-0.70 mm 



The great irregularity of form and zooecial dimensions of this 

 species justifies its name. There are some variations which recall 

 those of M embranipora irregularU Manzoni, 1875 ^ which possesses 

 a mural rim enlarged at the base and also some large interzocecial 

 avicularia. 



The present species differs from the splendid Ogivalina eximipora 

 Canu and Bassler from the Middle Jacksonian of North and South 

 Carolina in its smaller dimensions, in the absence of cryptocyst, and 

 in the presence of a gymnocyst. The avicularium (?) is identical 

 in form and position. 



Occurrence. — Emperador limestone, old quarry, one- third mile 

 north of west of Empire, Panama Canal Zone. D. F. MacDonald 

 and T. Wayland Vaughan, collectors, 1914, Station No. 6016. 



Southwest side Crocus Bay Hill, Anguilla, Leeward Islands. 

 T. Wayland Vaughan, collector, 1914, Loc. No. 6893. 



H olotype.— C2it. No. 65039, U.S.N.M. 



Family OPESIULIDAE Jullien. 

 Genus CUPULARIA Lamouroux. 



CUPULARIA UMBELLATA Defrance, 1823. 



Plate 53, figs. 2-A. 



1908. Cupitlaria uuihellata Canu, Iconograpliie des Bryozoaires fossiles 

 de TArgentine, Anales del Museo Nacional de Buenos Aires, vol. 17, 

 p. 275, pi. 5, figs. 4, 5. (See for complete bibliography.) 



1909. Cupularia umhellata Canu, Bryozoaires fossiles du Sud-Ouest de 

 la France, Bulletin de la Societe Geologique de France ser. 4, vol. 9^ 

 pp. 448, 454, pi. 16, figs. 16, 17. (Regional bibliography.) 



1909. Cupularia lowei Norman, On the Polyzoa of Madeira, Journ. Lin- 

 nean Soc, vol. 30, p. 290, pi. .37, figs. 7-12. 



1913. Cupularia umhellata Canu, Etude comparge des Bryozoaires Hel- 

 vetiens de I'figypte avec les Bryozoaires vivants de la Mediterranee 

 et de la Mer Rouge, Mem. a I'institut Egyptien, vol. 6, fasc. 3, p. 205. 



1913. Cupularia umhellata Canu, Cont. a I'etude des Bryozoaires fossiles, 

 pt. 5, p. 125; pt. 7, p. 126; pt. 12, p. 127; Bulletin Soc. Geol. France 

 (IV, XIII). 



1914. Cupularia loivei Osburn, The Bryozoa of the Tortugas Islands, 

 Florida. Publication No. 182, of the Carnegie Institution of Washing- 

 ton, p. 194, 



1 Briozoi del pliocene antico di Castrocaro, Bologna, 1875, p. 10, pi. 1, flgs. 5, 8. 



