CORALS AND BRYOZOA. 
287 
nearly or quite in contact; one portion of the peristomes is much the more 
strongly elevated, sometimes giving a nodes appearance; occasionally 
the summit of the carina is angular and has two rows of nodes. 
Formation and localities. Hamilton group, Moscow, Livingston county; Mut¬ 
ton ville, North Bristol Township, Ontario county; Montieth’s Point, west 
shore of Canandaigua lake, Ontario county; Black Point, Canandaigua lake, 
N. Y., and other localities in the central and western part of the State. 
Note.—T he two following-species were omitted in the proper place in the text of the volume, pages 
87 and 98. 
LICHENOTRYPA, Ulrich. 1885. 
Lichenalia (Lichenotrypa) longispina. 
PLATE XXV, FIGS. 11, 12. 
Lichenalia longispina. Hall. Trans. Albany Institute, vol. x, abstract, p 11. 18S1. 
Lichenotrypa cavernosa, Ulrich. Cent. Amer. Pal., vol. 1, No. 1, p. 21. 1885. 
“ longispina, Hall. Report of State Geologist for 1S86, advance sheets. PI. 35, figs. 11,12. 18SG. 
“ aspera, Ulrich. Cont. Amer. Pal., vol. 1, pi. 2, tig. 1. 
Zoarium consisting of thin lamellate expansions, incrusting other objects. In 
the earlier stages of growth the cell tubes are extremely short, the apertures 
oval, length from .25 to .30 mm., width two-thirds the length, closely and 
irregularly disposed. Peristomes strong, sub-equally elevated. Interaper- 
tural space smooth, flat or slightly concave. In the course of growth the 
intermediate space is traversed by thin walls, having a height of .50 mm. or 
more, and frequently connecting the posterior portions of the peristomes, 
inclosing the apertures in polygonal areas, and having the appearance of 
an irregular net-work. At the angles of the elevations there are prominent 
spines which sometimes attain a height of 1 mm. or more. The peristomes 
of many of the apertures are elevated equally with the interapertural walls. 
Intercellular space irregularly vesiculose. 
Formation and locality. Upper Helderberg group, Falls of the Ohio river. 
