8 BULLETIN 16 5, UNITED STATES NATIONAL MUSEUM 



Stichocados mucronatus, new species (V). 

 Tricephalopora acutirostris, new species (V, B). 

 Tricephalopora incrassata, new species (V, N). 

 Tricephalopora prolifera Gabb and Horn, 1862 (V, B, N, O). 

 Vincularia acutirostris, new species (V). 



Cyclostomata 



Diaperoecia amerfoa-na Gabb and Horn, 1862 (V, T, B). 



Diaperoecia saillans Canu and Bassler, 1922 (V). 



Diplosolen Imeatum Gabb and Horn, 1862 (V, T, B). 



Disoocytis eccentrica Ulricb and Bassler, 1907 (V, B). 



Entalopliora conradii Gabb and Horn, 1862 (V, T, B). 



Filifascigera megaera Lonsdale, 1S45 (V, T, B, N). 



Idmonea (Heterocrisina) abbotti Gabb and Horn, I860 (V, T, B). 



Leiosoecia parvicella Gabb and Horn, 1860 (V, T, B). 



Lekythionia dichotoma Gabb and Horn, 1862 (V, T, B). 



Lichenopora papyracea D'Orbigny, 1852 (V, N). 



Oncousoecia bifurcata Ulricb and Bassler, 1907 (V, B). 



OncGiisoecia contortilis Lonsdale, 1845 (V, T, B). 



Plagioecia americana Ulricb and Bassler, 1907 (V, B, N). 



Plagioecia varians Ulrich, 1901 (V, B). 



Retelea ovalis Gabb and Horn, 1S62 (V, T, B, N). 



Statlimepora gabbiana Ulrich and Bassler, 1907 (V, B). 



Stomatopora kiimmelli Ulrich and Bassler, 1907 (V, B). 



Stomatopora regularis Gabb and Horn, 1862 (V, B, N). 



The following list is introduced for comparison with the Vincen- 

 town fauna: 



Lotoest Eocene (Bryozoan bed of Aquia formation), Upper Marlboro, Md. 

 Species marked with an asterisk (*) occur also in the Vincentoivn limesand 



Cheilostomata 



AcantJiionella simplex Canu and Bassler, 1920 (allied to A. typica Gabb and 

 Horn, 1862). 



Bathosella aspcra Ulrich, 1901. 



Cheilopora (Lepralia) labiosa Ulrich, 1901. 

 *Coscinopleura digitata Morton, 1834. 



Ellisifna spiculosa Ulrich, 1901. 



*Ellisinidra (Amphiblestrum) heteropora Gabb and Horn, 1862. 

 *Euritina torta Gabb and Horn, 1862. 

 *Hippaliosina aspera Gabb and Horn, 1862 (Lepralia subplana Ulrich, 1901). 



Lunularia reversa Ulrich, 1901. 



Membra nip or ella crassula Ulrich, 1901. 



Membraniporella modesta Ulrich, 1901. 



Membraniporina rimulata Ulrich, 1901. 



Monoporella (Macropora) aquia Canu and Bassler, 1920 (allied to M. rin- 

 centownensis Ulrich and Bassler, 1907). 



Periporosella (Ellisina) angusta Ulrich, 1901 (allied to P. pletieia Gabb and 

 Horn, 1S62). 



Ramphonotus laevis Canu and Bassler, 1920. 



Stamenocella cylindrica Canu and Bassler, 1920 (allied to S. oeulata Ulrich 

 and Bassler, 1907). 



