98 
BULLETIN 125, UNITED STATES NATIONAL MUSEUM. 
r . . £0 = 0.95 mm. 
Zooecia 7 „ rr />a „ 
1/0 = 0.55-0.60 mm. 
,, , . , \ha = 0.25 mm. 
Measurements. —Apertura 7 . __ 
1 [la = 0.25 mm. 
Affinities. —This species is very close to the genotype Dakaria chevreuxi Jullien, 
1904, but it differs in the absence of salient threads between the zooecia, which are 
also more elongated and especially in the larger micrometric dimensions (£0 = 0.75 
mm.). 
Occurrence.— Miocene (Yorktown formation): Yorktown, Virginia (rare). 
Holotype. —Cat. No. 68540, U.S.N.M. 
DAKARIA TORQUATA D’Orbigny, 1839. 
Plate 12, figs. 8, 9. 
1839. 
1845. 
1851. 
Escharina torquata D’Orbigny, Voyage dans l’Amerique-Meridionale, vol. 5, pt. 4, Zoo¬ 
phytes, p. 11, pi. 4, figs. 1-4. 
Escharina tumidula Lonsdale, Report on the Corals from the Tertiary formations of North 
America, Quarterly Journal Geological Society, London, vol. 1, p. 502. (Not Flustra 
torquata Lamouroux, 1827, Encyclopedie Methodique, vol. 14, p. 407.) 
Cellepora subtorqmta D’Orbigny, Paleontologie francaise, Terrain Cretace, vol. 5, Bryo- 
zoaires, p. 399. 
1905. Cellepora subtorquata Waters, Notes on some Recent Bryozoa in D’Orbigny’s Collection, 
Annals Magazine Natural History, ser. 7, vol. 15, p. 6. 
,, J . (&a = 0.15mm. „ . (£0 = 0.50 mm. 
Measurements. —Apertura 7 _ Zooecia 7 _ . _ 
1 [ /a = 0.15 mm. 1/0 = 0.40 mm. 
Affinities. —In 1851 D’Orbigny having noted that his Escharina torquata was 
not Flustra torquata Lamouroux, 1827, changed its name. Examining the type of 
the species Waters, 1905, wrote “D’Orbigny’s figure is good, but the lateral wings 
by the side of the sinus project more than is figured.” In 1884 Hincks believed he 
had found D’Orbigny’s species in the Pacific off California, but his good figure would 
not really permit this identification; the primitive name of Schizoporella dawsoni 
Hincks, 1883, applied by him to this species must therefore be preserved. The 
description and figure of Lonsdale leaves no doubt; we have indeed rediscovered 
his Escharina tumidula and in the same locality, namely, Petersburg, Virginia. 
D’Orbigny’s figure of the species is much better than that of Lonsdale. This 
species differs from Schizohrachiella sanguinea Norman, 1868, and Dakaria chev¬ 
reuxi Jullien, 1903, in a larger rimule and in the smaller micrometric dimensions. 
It incrusts shells and has no dietellae. 
Occurrence. —Miocene (Yorktown formation): 3 miles southwest of Petersburg 
(rare) and 2 miles southwest of Cash, Gloucester County, Virginia (rare). 
Habitat.— Atlantic: Bay of Rio de Janeiro, Brazil. 
Plesiotypes. —Cat. No. 68541, U.S.N.M. 
DAKARIA PARVIPOROSA, new species. 
Plate 30, fig. 1. 
Description. —The zoarium incrusts oysters. The zooecia are distinct, long, 
separated by a furrow; the frontal is convex and formed by a tremocyst with very 
small pores. The apertura is large, orbicular with a very wide rimule of little depth. 
(/ia = 0.16 mm. ^ . (£0 = 0.50-0.60 mm. 
Measurements. —Apertura L _ q jg 
mm. 
Zooecia 
lz = 0.36-0.40 mm. 
