FORAMINIFERA OF THE ATLANTIC OCEAN 17 



Genus BRADYINA Moller, 1878 



Bradyina Moller, Mem. Acad. Imp. Sci. St. Petersbourg, ser. 7, vol. 25, 

 no. 9, 1878, p. 78. — Cushman, Special Publ. No. 1, Cushman Lab. Foram. 

 Res., 1928, p. 205. 



Nonionina (part), Eichwald, 1860 (not d'Orbigny). 



Ldiuola (part), H. B. Brady, 1876 (not Lamarck). 



Genotype, by designation. — Bradyina nautiliformis Moller. 



Test mostly involute, bilaterally symmetrical, at least in the adult; 

 aperture, a single opening or series of openings at the base of the 

 apertural chamber in the middle line with a supplementary series in 

 a crescentic line near the peripheral margin of the apertural face, 

 connecting with the exterior after new chambers are added by a row 

 of pits along the sutural lines. 



Carboniferous. 



These two genera, Crihrospira and Bradyina, are peculiar in many 

 ways and may not belong to this family. They are mostly confined 

 to the Palaeozoic and probably did not live after that period. Their 

 relationship to such forms as Endothyra is probably close. 



Genus ELPHIDIUM Montfort, 1808 



Elphidium Montfort, Conch. Sj^st., vol. 1, 1808, p. 15. — Cushman, Special 

 Publ. No. 1, Cushman Lab. Foram. Res., 1928, p. 205. 



Geophonus Montfort, Conch. S.vst., vol. 1, 1808, p. 19 (genoholotype, 

 Nautilus macellus Fichtel and Moll (part)). 



Pelorus Montfort, Conch. Sj^st., vol. 1, 1808, p. 23 (genoholotype, Nau- 

 tilus amhiguus Fichtel and Moll (part)). 



Andromedes Montfort, Conch. Sj'st., vol. 1, 1808, p. 39 (genoholotype, 

 Nautilus strigillatus Fichtel and Moll (part)). 



Sorilus Montfort, Conch. Syst., vol. 1, 1808, p. 43 (genoholotype, Nautilus 

 strigillatus Fichtel and Moll (part)). 



Themeon Montfort, Conch. Syst., vol. 1, 1808, p. 203 (genoholotype, 

 Themeon rigatus Montfort? Nautilus crispus Linnaeus). 



Cellanthus Montfort, Conch. Syst., vol. 1, 1808, p. 207 (genoholotype. 

 Nautilus craticulatus Fichtel and Moll). 



Vorticialis Lamarck, Extrait Cours Zool., 1812, p. 122 (genotype, by desig- 

 nation, Nautilus craticulatus Fichtel and Moll). 



Polystomella Lamarck, Hist. Anim. sans Vert., vol. 7, 1822, p. 625 (geno- 

 type, by designation. Nautilus crispus Linnaeus). 



Robulina (part), Munster, 1838. 



Geoponus Ehrenberg, Abhancjl. k. Akad. Wiss. Berlin, 1839 (1841), p. 132 

 (genoholotype, Geoponus stella-borealis Ehrenberg). 



Nonionina (part). Boll, 1846. 



Helicozoa Moebius, Beitr. Meeresfauna Insel. Mauritius, 1880, p. 103 

 (genoholotype. Nautilus craticulatus Fichtel and Moll). 



Genoholotype. — Nautilus macellus Fichtel and Moll (part). 



Test typically planispiral, bilaterally symmetrical, mostly involute; 

 chambers numerous with distinct sutures either depressed or raised 

 and limbate, with septal bridges and depressions; wall calcareous, 

 perforate; apertures one or more at the base of the apertural face. 



