32 
.BULLETIN 125, UNITED STATES NATIONAL MUSEUM. 
There are some long and some wide zooecia. The opesium is very finely den¬ 
ticulated and bears areal spines. The mural rim is granulated on the better pre¬ 
served specimens, which then resemble forma monilifera from Cercado de Mao, Santo 
Dom in go. There are in the Canu collection specimens almost as beautiful as the 
Santo Domingo form. 
Occurrence. —Miocene (Aquitanian): Leognan (LeThil), St. Medard-Gajac 
(Gironde) and St. Avit (Landes), France. Miocene (Burdigalian): Saucats (Le- 
Peloua), Leognan and Pontiac (Gironde) France. 
ACANTHODESIA SAVARTI forma MONILIFERA Canu and Bassler, 1919. 
Plate 2, figs. 2, 3. 
1919. Acanthodcsia savarti forma monilifera Canu and Bassler, Geology and Paleontology of the 
West Indies, Bryozoa, Publication of the Carnegie Institution of Washington, No. 291, p. 79, 
pi. 2, figs. 2, 3. 
Like typica, but the mural rim is beaded. The zoarium is unilamellar and sub- 
cylindrical. 
This form is intermediate between forma reyti and forma typica. It is evi¬ 
dently the first representative in the American Basin. 
Occurrence. —Lower Miocene (Bowden horizon): Cercado de Mao, Santo Do¬ 
mingo (rare.) 
Holotype. —Cat. No. 68427, U.S.N.M. 
ACANTHODESIA SAVARTI forma TEXTURATA Reuss, 1847. 
Plate 5, figs. 1-5; plate 46, figs. 8, 9. 
1847. Flustrellaria texturata Reuss, Die fossilen Polyparien des Wiener-Tertiarbeckens, Haidinger’s 
naturwissenschaftliche Abhandlungen, vol. 2, p. 73, pi. 9, fig. 1. 
1872. Biflustra savarti Smitt, Floridan Bryozoa, collected by Count L. F. de Pourtales, Part I, 
Kongl. Svenska Vetenskaps-Akademiens Handlingar, vol. 10, No. 11, p. 20, pi. 4, figs. 
92-95. 
1877. Flustrellaria texturata Manzoni, I, Briozoi fossili del Miocene d’Austria ed Ungheria, II Parte, 
Denkschriften der math, natur. Classe der k. Akademie der Wissenschaften, vol. 37, Abtheil. 
2, p. 67, pi. 13, fig. 45. 
1917. Acanthodesia savarti forma texturata Canu and Bassler, Geology and Paleontology of the West 
Indies, Bryozoa, Publication of the Carnegie Institution of Washington, No. 291, p. 79, pi. 
5, figs. 1-5. 
The crvptocyst is developed on all the zooecia. No spinous processes. No 
tubercles. The zoarium is unilamellar and subcylindrical. 
Measurements. —Opesia 
ho = 0.35 mm. 
Jo = 0.20 mm. 
Zooecia 
\Lz 
i Iz 
= 0.50 mm. 
= 0.28 mm. 
Variations. —The zoarium incrusts fine algae at their bifurcation; it is therefore 
unilamellar and subcylindrical. The zooecia are elongated, ogival, distinct; the 
mural rim is striated, salient only in the distal portion; the cryptocyst is large and 
concave. The opesium is elliptical, very' finely denticulated; anteriorly it often 
bears thin and short spinous processes. 
Smitt figured the serrate denticle on the recent specimens; it never persists on 
the fossil examples. On the inner face the zooecia are rectangular. 
