428 
BULLETIN 106, UNITED STATES NATIONAL MUSEUM. 
Occurrence . — Middle Jacksonian (Castle Hayne limestone) : Wilmington, 
North Carolina (very rare). 
Holotype.— Cat. No. 64112, U.S.N.M. 
Genus KYMELLA Canu and Bassler, 1917. 
1917. Kymella Canu and Basslee, Synopsis of American Early Tertiary Clieilostome 
Bryozoa, Bulletin 96, United States National Museum, p. 44. 
The hyperstomial ovicell is always closed by the operculum. The frontal is 
bordered laterally by areolae. The apertura bears a very thin wide rimule. 
Genotype. — Kymella ( Cyclicopora ) polaris Waters, 1904. Recent. 
Fig. 126— Genus Kymella Canu and Bassler, 1917. 
A-F. Kymella polaris Waters, 1904. A. Zooeeia of bilaminate form, X 25. B. Operculum, 
X 85. C. Lateral wall, showing multiporous septulae. D. Distal wall, showing uniporous 
septulae. E. Zooeeia of adnate form, X 25. F. Operculum, X 85. (After Waters, 1904.) 
Genus AIMULOSIA Jullien, 1888. 
1888. Aimulosia Jullien, Mission Scientifique du Cap Horn, vol. 6, Zoologie Bryozoaires, 
p. 59. 
The ovicell is hyperstomial and never closed by the operculum. The apertura 
is semilunar; the poster is somewhat concave. The frontal is an olocyst bordered 
with areolae. A small round or elliptical avicularium is adjacent to the apertura. 
Genotype. — Aimulosia australis Jullien, 1888. 
Range.- — Wilcoxian-Recent. 
As in the genus E xochella., the stomach is rudimentary ; it is replaced by the 
esophagus, which Jullien calls a gastroid esophagus. 
Lepralia pungens Reuss, 1866, of the German Oligocene appears to belong to 
this genus. 
