REPORT ON THE POLYZOA. 
31 
deeply grooved ; setse long and strong. Radical tubes forming a dense elevated keel in the 
middle of the branch behind (none on the sides). 
Habitat . — Station 190, lat. 8° 56' S., long. 136° 5' E., 45 fathoms, green mud. 
Station 186, lat. 10° 3 0 ; S., long. 142° 18' E., 8 fathoms, coral mud. 
[Australia, Voy. of Rattles., New Zealand, Hooker.] 
This species varies a good deal ; the small anterior avicularium is sometimes absent or 
only rudimentary, and in some cases the lateral extrangular avicularium is very minute 
or inconspicuous, whilst in others it may attain a very considerable size. When the growth 
occurs in the biserial form it would be easy to confound it with Caberea hooJceri. 
Family VI. Bicellakiadje. 
Bicellariado}, Bk., Brit. Mus. Cat., vol. i. p. 41 ; Voy. of Rattles., vol. i. p. 373. 
Bicellarice , Smitt. 
Bugulidce, Gray. 
Bicellariidce, Bk., Crag. Polyz. (pars ) ; Hincks. 
Acamarcliisidce, d’Orb. 
Character. — Zoarium continuous, erect, phytoid, divided into ligulate, bi-multiserial 
branches ; affixed by radical fibres, and sometimes supported on a long chitinous tubular 
stem, which represents a modified radical tube. Avicularia, when present, pedunculate 
capitate, articulated or not. Zooecia with a wide oblique aperture, all facing in the same 
direction. 
The Family here contains the following genera : — 
1. Bicellaria, Blainville. 
(1) Bicellaria navicularis, n. sp. (PI. VII. fig. 2). 
(2) Bicellaria pectogemma, Goldstein (PI. VII. fig. 1). 
(3) Bicellaria infunclibulata, n. sp. (PI. VI. fig. 2). 
(4) Bicellaria bella, n. sp. (PI. VI. fig. 3). 
(5) Bicellaria moluccensis, n. sp. (PI. VI. fig. 4). 
(6) Bicellaria glabra (Hincks) (PL VI. fig. 1). 
(7) Bicellaria macilenta, n. sp. (PI. XXXII. fig. 1). 
2. Bugula, Oken. 
§ a - 
(1) Bugula versicolor, n. sp. (PI. III. fig. 4). 
(2) Bugula leontodon, n. sp. (PL X. fig. 3). 
(3) Bugula sinuosa, n. sp. (Pl. X. fig. 2). 
(4) Bugula mirabilis, n. sp. (Pl. X. fig. 1). 
