88 
THE VOYAGE OE H.M.S. CHALLENGER. 
regards the latter, that the North Atlantic region afforded 2 species ; the South Atlantic, 
4 species ; the South Indian or Kerguelen region, 2-3 species ; Australian, 2 species. 
None seem to have occurred in the Philippine ‘or Pacific regions. 
Cellaria fistulosa, Macgillivray, Nat. Hist. Viet., Dec. v. p. 47, pi. xlix. fig. 1 ( nec Linn.). 
„ „ var. australis , Hincks, Ann. and Mag. Nat. Hist., ser. 5, vol. xiii. p. 368, 1884. 
Character . — Zoarium radicate, either simple and clavate, or with irregular loosely 
attached branches or offsets. Areas rhomboidal or sometimes truncato- 
hexagonal. Surface smooth. Orifice crescentic, lower lip prominent. 
Avicularia intercalated, mandible semicircular, 0 //- 002 x '0055, with a 
central opening and subbasal tubercle. Operculum, 0"'006 x ’0045, 
semicircular, crescentic below, with a wide granulated band. 
Habitat. — Station 149d, Royal Sound, Kerguelen Island, 28 fathoms, 
mud. Station 162, off East Moncoeur Island, Bass Strait, 38 fathoms, 
sand and shells. Station 163b, off Port Jackson, 35 fathoms, hard ground. Station 304, 
lat. 46° 53' S., long. 75° 12' W., 45 fathoms, green sand. Prince Edward Island. 
[Queenscliff, Portland, Maplestone.] 
(2) Salicornaria simplex, n. sp. (PI. XXXIII. fig. 8). 
Character . — Zoarium 1 to 3 inches high, composed of tolerably thick inter- 
portion three pointed filaments depend. Avicularia (when present) vicarious, with a 
very large semicircular mandible C'OOlb x ‘0135 pointing upwards. 
a. simplices. 
(1) Salicornaria clavata, n. sp. (PI. XII. fig. 8). 
fig . 5 .— Saiicortiaria volcanic mud. Station 151, off Heard Island, 75 fathoms, volcanic 
clavata. 
/3. articulates, 
(a) tubulates. 
nodes, from £th to \ inch long and pretty uniform in length in the same zoarium ; branch- 
ing dichotomously. Areas (in mature parts) 
rhomboidal or sometimes hexagonal, remark- 
ably regular and uniform. Surface (beneath 
the epitheca), finely granular. Orifice nearly 
central, suborbicular, with two pointed denti- 
cles above and below. Operculum arcuate, 
0 //, 0055 x ’005, with a branched chitinous 
fig . Salicornaria simplex. support on each side ; the lateral trabeculae 
meet below the orifice and from the transverse 
