50 
THE VOYAGE OF H.M.S. CHALLENGED 
Habitat. — Station 153, lat. 65° 42' S., long. 79°49'E., 1675 fathoms, blue mud. 
Station 325, lat. 36° 44' S., long 46° 16' W., 2650 fathoms; blue mud. 
In all the specimens from. Station 153, there is a minute parasitic Cirriped (?) in 
the axil of the last bifurcation but one of every branch ; apparently a commensal. 
Var. a. armata (PI. XXXI. fig. 1). 
Character. — Zoarium 4 or 5 inches high, branches long, straggling, once or twice furcate. 
Zooecia precisely like those of Farciminariamagna, except that, more especially towards 
the lower part of the branches, they are furnished with an egg-shaped avicularium in the 
centre at the base and deeply immersed ; the opening is quite at the summit, and the 
mandible appears to form a mere lid, and is rather less than a semicircle. 
Habitat. — Station 323, lat. 35° 39' S., long. 50° 47' W., 1900 fathoms, blue mud. 
(4) Farciminaria brasiliensis, n. sp. (PI. XXXI. fig. 2). 
Character. — Zoarium about 2 inches high, with five or six once furcate branches. 
Zooecia about 0" - 05 x ’0075 ; frontal area slightly closed in at the bottom; a small, 
deeply immersed, globular, sessile avicularium, with a semicircular mandible. Ocecia 
somewhat flattened, not hollowed in front, surface coarsely rugose. 
Habitat. — Station 122, lat. 9° 5' to 10' S., long. 34° 49' to 53' W., 32 to 400 fathoms; 
red mud. 
(5) Farciminaria pacifica, n. sp. (PI. XXXI. fig. 4). 
Character. — Zoarium probably large. Zooecia 0"‘06 x ’01 ; angles thick and 
rounded, upper border immersed, orifice very slightly prominent. A globose cup-shaped 
avicularium, with a semicircular mandible placed to one side at the base in front. 
Ooecium large, convex, surface rugose, with a slight central vertical depression in front, 
flattened or immersed behind, with a sort of projecting collar; a reniform stigma on 
the summit. 
Habitat. — Station, 241, lat. 35° 41' N., long. 157° 42' E., 2300 fathoms, red clay. 
The reniform mark on the summit of the ooecium appears to represent the suppressed 
avicularium of the superjacent zooecium. 
The only specimen in the collection is a fragment about 1 inch long, which constituted 
the sole contents of a small tube, so that no idea can be formed of the general habit ; but 
it would probably be like that of Farciminaria cribraria or Farciminaria brasiliensis. 
