NORTH AMERICAN EARLY TERTIARY BRYOZOA. 



17 



LISTS SHOWING GEOGRAPHIC AND GEOLOGIC DISTRIBUTION. 

 LOWEST EOCENE (BRYOZOAN BED AT BASE OF AQUIA. FORMATION). 



TJPPEK MARLBORO, MARYLAND, 

 [v. r.=very rare; r.=rare ; v. e.=very common; c.=common.] 



CHEILOSTOMATA. 



Membraniporina rimulata Ulrich, 1901 (v. r.). 

 EUisina spiculosa Ulrich, 1901 (r.). 

 ElUsina (?) angusta Ulrich, 1901 (v. c.). 

 Amphiblestrum heteropora Gabb and Horn, 1862 (r.). 

 Ramphonotus laevis,. new species (v. r.). 

 Stamenocella cylindrica, new species (v. r.). 

 Lunularia reversa Ulrich, 1901 (r.). 

 Euritina torta Gabb and Horn, 1862 (r.). 

 Coscinopleura digitata Morton, 1834 (r.). 

 Macropora aquiae, new species (c.). 

 Membraniporella modesta Ulrich, 1901 (r.). 

 Membraniporella crassula Ulrich, 1901 (r.). 

 Bathosella aspera Ulrich, 1901 (r.). 

 Cheilopora (?) Jabiosa Ulrich 1901 (r.). 

 Heniscopora sultplana Ulrich, 1901 (c.). 

 Acanthionella simplex, new species (v. r.). 



CTCLOSTOMATA. 



Heteropora tecta Ulrich, 1901 (r.). 

 Plagioecia subramosa Ulrich, 1901 (r.). 

 Diaperoecia various Ulrich, 1901 (r.). 

 Diplosolen compactum, new species (r.). 

 LeJcythionia dichotoma Gabb and Horn, 1862 (r.). 

 Partretocycloecia dumosa Ulrich, 1901 (v. c.). 



MIDWATAN BRYOZOA. 



[v. r.= very rare; r.=rare; v. c.=very common; c.=common.] 



i J=Jacksonian. V= Vicksburgian. C = Claibonian. 



55899 20 Bull. 1 



