REPORT ON THE POLYZOA. 
7 
not unfrecjuently from the second cell. Ooecial cell infundibuliform, rounded at the top. 
Branches 0'2 mm., and zocecia 0 - 08 mm. wide. 
Habitat. — Off Marion Island, 50 to 75 fathoms; off Prince Edward Island, 80 to 
150 fathoms. 
[Ceylon, Holdsworth.] 
Habit very delicate and slender. May be allied to Crisia tenuis, Macgilliv. ( loc . cit., 
p. 39, pi. xxxix. fig. 5), in which, however, the zooecia appear to be less closely connate. 
In the specimens brought by Mr. Holdsworth from Ceylon there were no ooecia ; on 
which account I have given a figure of that organ from the Challenger collection. 
(8) Crisia conferta, Busk (PI. II. fig. 5). 
Crisia conferta , Ek., Rrit. Mus. Cat., pt. iii. p. 7, pi. vi.A fig. 5. 
Character. — Zoarium tufted, composedof short, thick, curved branches radiating as 
it were from a short central stem. Zooecia thirteen to twenty-one in an internode ; nearly 
the upper half free, cylindrical, curved abruptly forwards ; orifice orbicular or subelliptical, 
of the same diameter as the tube ; branches one to four from each internode, not opposite. 
Ooecial cells closely aclnate, median or axilliary ; usually broadly truncate. Branches 
0‘35 mm., and zooecia 0'07 mm. wide. 
Habitat. — Off St. Vincent, Cape de Verde Islands, depth 10 fathoms. Station 163a, 
off Twofold Bay, 150 fathoms. 
[Cape de Verde Islands, H.M.S.“ Herald.”] 
A well-marked species, growing usually in dense tufts, and peculiar for the number of 
branches springing from an internode. The curved free portion of the cell is not, as is 
most usually the case, a mere production of the peristome marked with annular lines of 
growth, since the wall of that part is punctured like the rest of the zocecium. 
(9) Crisia cylindrica, n. sp. (PI. II. figs. 2, 4). 
Character. — Zoarium about an inch high, furcately branched ; ten to thirty 
zooecia in an internode ; usually two branches given off from the longer segments, the 
lower from about the seventh zocecium, and the upper near the summit of the internocle. 
Zooecia about half immersed, the upper part curved forwards, exceedingly delicate and 
thin- walled, without puncta ; orifice circular, margin even. Branches perfectly cylindrical, 
with an even shiny surface, distinctly punctate ; dorsal aspect obliquely striated, but 
quite even. Ooecial cells pyriform, usually axillary, with a wide tubular orifice. Diameter 
of branches about 0T5 mm., and of zooecia 0'06 to 0 08 mm. 
