NORTH AMERICAN EARLY TERTIARY BRYOZOA. 
691 
1908. Filisparsa varians Beutler, Beitrag zur kenntnis ties Bryozoenfauna tier alterer 
Tertiarschiclaten dcs sudlichen Bayern, II, Palentographica, vol. 54, p. 233, pi. 24, 
figs. 14-16. 
1909. Filisparsa varians Canu, Les bryozoaires tertiares des environs de Paris, Annales 
de Paieontologie, vol. 4, p. 115, pi. 14, figs. 6, 7, S. 
1913. Filisparsa varians Canu, Contributions a l’etude des Bryozoaires fossiles, pt. 5, Bulle- 
tin de la Soeiete geologique de France, ser. 4, vol. 13, p. 125. 
1914 Filisparsa varians Canu, Les bryozoaires fossiles des Terrains du Sud-Ouest de 
la France, Bulletin de la Soeiete geologique de France, ser. 4, vol. 14. p. 473. 
Measurements . — 
Diameter of the peristome 
Zooecial width 
Distance between the peristomes 
Width of the branches 
Separation of the peristomes 
Length of the peristomie 
0.24—0.28 mm. 
0.30 mm. 
1.00 mm. 
1.25 mm. 
1.00 mm. 
0.30 mm. 
Variations. — The ovicell of this species was long ago discovered by Canu in 
a specimen from the Priabonian strata of the Vicentin, but a figure of it was not 
published until 1916. It is pyriform, the point below; the oeciostome is transverse 
and of the same diameter as that of an ordinary tube. This ovicell must be 
extremely rare, as we have not observed it on our large number of American 
Vicksburg'ian specimens. 
The tubes are porous ; the length of the peristomie very inconstant. In longi- 
tudinal or transversal section, the thickness of the exterior wall is very great. 
Affinities. — The micrometric measurements are rather close to Filisparsa 
ingens , but the present species differs from it in a greater zooecial length and espe- 
cially in its branches, which are only half as large. 
Occurrence. — Vicksburgian (Marianna limestone) : West bank Conecuh River, 
Escambia County, Alabama (very common); Salt mountain, 5 miles south of 
Jackson, Alabama (common) ; near Claiborne, Monroe County, Alabama 
(common) ; Murder Creek, east of Castlebury, Conecuh County, Alabama (very 
common) . 
Geological distribution. — Lutetian of Paris, the Pyrenees, Bavaria (Canu) ; 
Priabonian of the Vicentin (Reuss, Waters), of Transylvania (Pergens) ; Latdor- 
fian of Germany (Stoliezka) ; Rupelian (=Stampian) of the southwest of France; 
Burdigalian of Gard (Collection of Canu) ; Helvetian of Gard (Collection of Canu) 
and of Italy (Seguenza) ; Tortonian of Italy (Seguenza), of Austria-Hungary 
(Reuss), of Russia (Pergens); Zanclean of Italy (Seguenza); Plaisancian of 
Italy (Seguenza) ; Astian of Italy (Seguenza), of southern France (Canu) ; Sicilian 
of Italy (Neviani) ; Quaternary of Italy (Neviani). 
Habitat. — Mediterranean (Waters). * 
Plesiotypes. — Cat. No. 65402, U.S.N.M. 
