NORTH AMERICAN EARLY TERTIARY BRYOZOA. 

 HORNERA JACKSONICA. new species. 



797 



Plate 143, figs. 1-28. 



Description. The zoarium is elliptical, ramified in the strict sense at a very 

 acute angle. The tubes are invisible exteriorly; they bear from two to four 

 vacuoles, two of which are adjacent to the apertura and are arranged at the base of 



FIG. 257. Genus Honiera Lamouroux, 1821. 



A-E. Honiera frondiculata Lamouroux, 1821. A. Complete zoarium, natural size. (After 

 Milne-Edwards, 1838.) B. Dorsal of branch, X 25. C. An aperture greatly enlarged. . D. 

 Frontal, X 25. (B-D, after Busk. 1875.) E. Another view of the frontal, X 2o. (After 

 Waters.) F. Views of the fossil form referred to the species by Busk, 1859. 



one or two oblique stilci. The peristome is orbicular and little salient. The dorsal 

 bears longitudinal sulci narrower than the nervi, and rather large vacuoles. The 

 ovicell is elongated, elliptical, very globular, and quite punctate. 



