42 
Genus, CRISIA. Lamour. 
Cells in two rows, subalternate, the aperture entire and terminal. 
No. 277. C. eburnea . Ellis. Cells loosely aggregated cylindrical, bent, tubu¬ 
lar, orifices free. 
Rare in our harbor; I found it on one rock only at Hurlgate; it is often found parasitical on Sargassum 
Montagnei, drifting into our harbor from the Sound, where it is very abundant. 
Genus, BEANIA. Johnston. 
Confervoid, the shoots creeping, tubular, irregularly divided, the cells very large, 
sessile, erect, ovate ; single and in pairs. 
No. 278. B. mirabilis, W. Bean. Confervoid, \ inch high. 
I have only one specimen of this Coralline, and that was accidentally discovered when preparing some 
Algge; it is probably abundant, though escapes notice on account of its diminutive size. It is very beautiful 
under the microscope. 
Genus, YALKERIA. Fleming. 
Confervoid, fistular, variously branched, cells clustered, ovate with a narrow 
base, polypes with eight regularly ciliated tentacula. 
No. 279. Y . pustulosa. Ellis. Dichotomous, or alternately branched, the cells 
clustered, unilateral. 
This Coralline drifts on shore at Jersey City, Fort Hamilton, and other places from the deep water. It 
is rather abundant, though I have not found it attached to anything, and don’t know the precise habitat, or 
locality of growth ; the polypidom is of a clear horn color, and branched at very wide angles. 
The stubborn, horny nature of Corallines, make it inconvenient to fasten them on paper; and for that 
cause I have omitted to preserve many that lay in my path in the early search for Algae. A careful recon¬ 
noitre of our harbour, would no doubt, reveal many more species, or entire genera. 
MISCELLANEOUS ZOOPHYTES. 
Our waters are very prolific in Zoophytes; and under the head of Miscellaneous, 
a very large number of species, genera, and families, might be introduced to the read¬ 
er with descriptive engravings. Their peculiar structure, however, renders it impos¬ 
sible to convey even a tolerable idea of their habits by dried specimens, and they are 
therefore omitted in this work. The following were deemed of sufficient importance 
to justify their insertion in this place : 
No. 290. Spongia, damicornis, of Esper. 
Variously divided and compressed, often proliferous, the polypes have sixteen tentacula, eggs oval and 
heart shape, compressed. Johnston who adopts the genus Alcyonidium of Lamouroux, and species Hirsu- 
turn of Fleming says the egg is clothed with cilia, and all inclined in one direction, moving with great uni- 
fotmity and quickness ; and the velocity of the cilia is not generally diminished when the egg is at rest • the 
egg swims freely about, often turning on its axis. 
At Hurlgate, on the stem of Phyllophora Brodimi, at low water mark, not very abundant. 
