42 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



Disco flustrella D'Orbigny, 1S53. Bry. Cret., p. 561. The two species described 



by D'Orbigny (D. doma and D. complanala) are now referred to Cupularia. 

 Discoflustrellaria D'Orbigny, 1851. Family Mamilloporidae. 

 Discopora Lamarck, 1836. Genotype, Cellepora verrucosa Esper, 1797. Not 



recognized. 

 Discoporella D'Orbigny, 1851. Synonym of Cupularia. 

 Dishelopora Lang. Family Disheloporidae. Cretaceous cribrimorph. 

 Distansescharella D'Orbigny, 1852. Family Costulae. Doubtful genus accord- 

 ing to Waters, 1923. Referred by Lang to Andrioporidae. 

 Distansescharellina D'Orbigny, 1852. Bry. Cret., p. 451. Type and only species 



Cellepora pteropora Reuss, 1848. Miocene of Vienna Basin. D'Orbigny 



badly interpreted the poor figure of Reuss. Synonym of Perisiomella. 

 Disteginopora D'Orbigny, 1852. Bry. Cret., p. 235. Genotype, D. horHda 



D'Orbigny, 1852. Cretaceous Costulae. Referred by Lang to Pelmato- 



poridae. 

 Distelopora Lang, 1915. Family Electrinidae. Genus of uncertain affinities. 

 Ditaxipora MacGillivray, 1895. Subgenus of Strophipora. Family Cateni- 



cellidae, 

 Dittosaria Busk, 1866. Family Liriozoidae. 

 Doryporella Norman. Subgenus of Callopora. 

 Electra Lamouroux, 1916. Family Electrinidae. 

 Electrina D'Orbigny, 1851. Synonym of Electra. 

 Ellipsia Jullien, 1903. Synonym of Retepora. 

 Ellipsopora Canu and Bassler, 1923 (subgenus of Microporella) . Family Escha- 



rellidae. 

 Ellisina Norman, 1903. Family Alderinidae. 

 Emballotheca Levinsen, 1909. Family Escharellidae. 

 Emma Gray, 1843. Synonym of Menipea. 

 Ennallipora Gabb and Horn, 1862. Genotype, E. quadrangularis Gabb and 



Horn, 1862. Jour. Acad. Nat. Sci. Phila., sec. 2, vol. 5, p. 141. Hardly 



recognizable although possibly a species of Smittina. 

 Enoplostomella Canu and Bassler, 1917. Family Stomachetosellidae. 

 Entomaria Canu, 1921. Family Setosellidae. 

 Epicaulidium Hincks, 1881. Synonym of Liriozoa. 

 Epistomia Fleming, 1828. Family Epistomiidae. 

 Erina Canu, 1908. See Erinella. 

 Erinella Canu and Bassler, 1927 {Erina Canu, 1908, preoccupied). Family 



Membranicellariidae. 

 Eschara (Raii, 1724) Linnaeus, 1785. Apparently based on same structural 



type as Flustra but used for any free form of Acophora with two lamellae 



back to back. 

 Escharella Gray, 1848. Genotype, Berenicea immcrsa Fleming, 1828. Not 



recognizable. 

 Escharellina D'Orbigny, 1852. Bry. Cret., p. 206. Not recognized. 

 Eschar icellaria Voigt, 1924. Family Cellariidae. 

 Escharifora D'Orbigny, 1852. Family Coscinopleuridae. 

 Escharina M. Edwards, 1836 in Lamarck, Hist., ed. 2, p. 231. Type, Eschara 



vulgaris Moll, 1803. Not recognized. 

 Escharinella D'Orbigny, 1852. Bry. Cret., p. 200. Not recognized. 

 Escharipora D'Orbigny, 1852. Bry. Cret., p. 220. Cretaceous cribrimorph. 



See Lang, 1921. 

 Escharoides Milne-Edwards in Lamarck, 1836. Family Stomachetosellidae. 



Reserved for species incompletely studied. 



