NORTH AMERICAN EARLY TERTIARY BRYOZOA. 
705 
Occurrence . — Lower Jacksonian (Mooclys marl) : Jackson, Mississippi 
(common). 
Vicksburgian (Bed Bluff clay) : Seven and one-half miles southwest of Bladen' 
Springs, Alabama (rare). 
Geological distribution . — Lutetian of Paris (Canu) ; Stampian of Germany 
(Reuss) ; Burdigalian of Gard (Canu); Helvetian of Herault (Canu), of Italy 
(Seguenza) ; Zanclean of Italy (Seguenza, Neviani) ; Tortonian of Italy, (Segu- 
enza), of Germany (Reuss); Astian of Italy (Seguenza); Sicilian of Italy 
(Neviani) ; Quaternary of Italy (Neviani). 
Plesiotypes. — Cat. No. 65336, U.S.N.M. 
CRISIA EDWARDSI Reuss, 1847. 
Plate 141, figs. 5-7. 
1847. Crisia edtoardsi Reuss, Die fossilen Polyparien des Wiener Tertiarbeckens, Hai- 
dinger’s naturwissenschaftliche Abbandlimgen, Wien, vol. 2, p. 53, pi. 7, fig. 20. 
1851. Crisia edtoardsi Reuss, Ein Beitrag zur Palneontologie der Tertiarscbicbten Ober- 
schlesiens, Zeitsehrift der Deutsclien Geologiscben Gesellscliaft, Berlin, vol. 3, p. 170. 
1866. Crisia edtoardsi Reuss, Die Foraminiferen, Antbozoen und Bryozoen des Deutseben 
Septarientbones, Ein Beitrag zur fauna der mitteloligoeanen Tertiarscbicbten, 
Denk. der k. Akademie der Wissenschaften, Wien, vol. 25, p. 191 (75), pi. 11, fig. 16. 
1867. Crisia edtoardsi Reuss, Die fossile Fauna der Steinsalzablagerung von Wieliczka 
in Galizien, Sitzungsbericbte der k. Akademie der Wissenschaften, Wien, vol. 
55, Abtbeil. 1, p. 122. 
1896. Crisia edtoardsi Reuss, Zur fossilen Fauna der Oligocanscliichten von Gass, Sitz- 
ungsbericbte der k. Akademie der Wissenschaften, Wien, vol. 59, Abtb. 1, p. 33. 
1869. Crisia edtoardsi Reuss, Palaontologische Studien fiber die alteren Tertiarscbicbten 
der Alpen, Abth 2 Die fossilen Antbozoen und Bryozoen der Schichtengruppe von 
Crosaro, Sitzungsberichte der k. Akademie der Wissenschaften, Wien, vol. 58, 
Abtb. 1, p. 67. 
1877. Crisia edtoardsi Manzoni, I Briozoi fossili del Miocene d’ Austria ed Ungheria, Denk 
schriften der Math, natur. Classe der k. Akademie der Wissenschaften, Wien, 
pt. 3, vol. 38, p. Ill, pi. 1, fig. 2. 
1879. Crisia edtoardsi Seguenza, Le formazioni terziarie nella Provincia di Reggio, (Cala- 
bria), Reale Accademia dei Lincei, Memorie della Classe di Scieuze Fisielie, Mat- 
ematiche e Naturali, ser. 3, vol. 6, pp. 84, 132, 208, 296. 
1900. Crisia edtoardsi Neviani, Estratto della Palaeontographica Italiea, Memoires di 
Palaeontographica, vol. 6, Briozoi neog. della Calabria, p. 224 (110). 
1909. Crisia edtoardsi Canu, Bryozoaires des terrains tertiaires des environs Paris, An- 
nales de Paleontologie, vol. 2, p. 105, pi. 12, figs. 13, 14. 
I Distance between the apertures 0.30 mm. 
Measurements . — Width of zooecia including peristome 0.08 mm. 
I Zoarial width 0.26-0.28 mm. 
Our measurements are smaller than those of the specimens from the Tertiary 
formations of the environs of Paris. 
The characteristic of this species is that the distance between the apertures is 
greater than the width of the segments. But to be certain of the determination 
it is necessary to know the micrometric dimensions of the type and the nature of 
its ovicell, two features of which we are ignorant. 
55899— 20— Bull. 106 45 
