REPORT ON THE POLYZOA. 
49 
The genus may be regarded emphatically as abyssal ; the mean depth at which the 
species here enumerated occurred, being not less than 1500 to 1600 fathoms, or from 450 
to 2750 fathoms. 
(1) Farciminciria atlantica, n. sp. (PL XXXI. fig. 6). 
Character. — Zoarium 2 to 3 inches high, arising in a single slender stem from a dense 
tuft of radical fibres, and dividing into several furcate branches. Zooecia multiserial, elon- 
gate oblong, rounded at the top and slightly prominent ; contracted downwards ; the sides 
of the front beset with numerous, simple, incurved, equidistant aculeate spines. A rather 
large immersed avicularium of an oval form with a semicircular mandible pointing 
upwards, at the bottom of the front in the middle. Ooecium immersed, surface smooth 
(not aculeate). 
Habitat . — Station 23, off Sombrero Island, 450 fathoms, Pteropod ooze. Station 
24, off Culebra Island, 390 fathoms, Pteropod ooze. 
Differs from the Australian Farciminaria aculeata, Bk., which it otherwise strongly 
resembles, in the aculeate marginal spines being simple and not furcate, as they mostly 
are in that species ; in the smoothness and comparatively smaller size of the ooecium ; 
and in the presence on very many of the zooecia of a large avicularium. 
(2) Farciminaria cribrarict, n. sp. (PI. V. fig. 2). 
Character. — Zoarium 3 to 4 inches high. Zooecia about 0" - 05 long ; wall 
reticulate or cribriform. A sessile prominent avicularium at the base of each in front, 
cup-shaped, with a pointed beak and acute, curved, triangular mandible. Ooecium 
flattened m front. 
Habitat. — Station 323, lat. 35° 39' S., long. 50° 47' W., 1900 fathoms, blue mud. 
The very peculiar reticulated structure of the walls is a remarkable characteristic 
of this species. 
(3) Farciminaria mcigna, n. sp. (PL Y. fig. 1). 
Character. — Zoarium 5 to 6 inches high ; branches very long and straggling. Zooecia 
from 0 //- 055 to 0"‘07 long by O'^OIS wide. Walls thin, angles quite sharp, upper border 
level with the surface. Ooecia large, somewhat flattened, partially immersed, with a 
vertical depression in the centre of the front ; surface slightly wrinkled; with or without 
avicularia. 
(ZOOL. CHALL. EXP.- PART XXX. — 1884.) Gg 7 
