NORTH AMERICAN EARLY TERTIARY BRYOZOA. 
563 
Genus ADEONELLOPSIS MacGillivray, 1886. 
1886. Adeonellopsis MacGillivray, Description of New Polyzoa, pt. 9, Transactions Royal 
Society Victoria, p. 7. 
“The zooecia provided in the central line with one or several ascopores” (Lev- 
insen). The ascopores are grouped at the base of a cribriform area. Interzooecial 
avicularia and gonoecia are present. 13-16 tentacles. 
Fig. 169. — Genus Adeonellopsis MacGillivray, 1S86. 
A-E. Adeonellopsis foliacea MacGillivray, 18S6. A. Four zooecia, X 55. B. Group of zooecia, 
including a gonozooecium, X 40. C. Operculum, X 140. D. Avicularian mandible, X 100. 
E. Interior of zooecia as seen from basal surface, X 40. showing ascopore, apertura, and 
parietal areolae. (A-E after Levinsen, 1909.) 
F-K. Adeonellopsis ( Cribricella ) distoma Busk, 1S58. F, G. Fragment of zoarium, natural 
size and X 50. H. Operculum. I. Mandible. (F-I after Busk, 1884.) .T. Young zooecia, X 20. 
K. Old zooecia, X 20. (J, K after Mine. Guerin Ganivet, 1911.) 
Genotype. — Adeonellopsis foliacea MacGillivray, 1886. 
Range. — Wilcoxian — Recent. 
We are entirely ignorant of the physiological use of the stellite pores, and 
also of the true mechanism of the hydrostatic system in the majority of the species. 
The gonoecia are not always apparent; certain species are deprived of them; 
on others the}^ are distinct but little different from the other zooecia. 
Historical. — Incompletely defined in 1886 by MacGillivray, this genus has for 
a long time remained unrecognized. In 1900 Maplestone created a genus Ovaticella 
