REPOET ON THE POLYZOA. 
25 
with the outer border of the aperture (forming a transverse bridge). Ocecium large, 
somewhat flattened in front, much immersed ; wall punctured. V ibracularia rather large ; 
flagella simple, setose. 
Habitat . — Admiralty Islands. 
5. Canda, Lamouroux. 
Canda, Lamx., Blainv. (pars), d’Orb., Brit. Mus. Cat. 
Cellaria (sp.), Lamk. 
Character . — Branches biserial, dichotomous, connected by transverse chitinous tubes, 
inserted at both ends into a vibracularium. No lateral avicularia, and the anterior 
avicularia, when present, placed on a special median tract or on the summit of the ooecia. 
A vibracularium lodged in a sinus behind; flagellum short, flattened, not toothed. With or 
without a pedunculate fornix. 
By the removal of Canda reptans to its proper place under Scrupocellaria, where 
it was classed by Gray, and is retained by Mr. Hincks, 1 the genus Canda, as defined 
by Lamouroux, becomes a very natural one ; and as it exhibits features in common with 
Caberea, viz., in the important respect of the membraniporidan type of the front of the 
zocecium as well as in the peculiar mode of branching at each bifurcation, as pointed out 
by Prof. Smitt, 2 it should be placed together with that genus among the Cellulariadae. 
(1) Canda arachnoides, Lamouroux. 
Canda arachnoides , Lamx., Hist, des Polyp., p. 132, pi. ii. fig. 6; Exp. metli., p. 5, pi. lxiv. 
figs. 19-22 ; Blainv., d’Orb., Palseont. Franc;., p. 331 ; Bk., Yoy. of Rattles., vol. i. p. 371, 
Brit. Mus. Cat., vol. i. p. 26, pi. xxxiii. 
Cellaria filifera, Lamk., vol. ii. p. 177. 
Character. — Front of zooecium rhomboidal, aperture large, oval, truncated above ; the 
upper margin recedent with a strong spine on each side, the outer much the larger and 
articulated ; margin beaded ; lamina covered with minute crystalline granulations. An 
irregular series of anterior avicularia which are very prominent, with a flexible basal 
portion and an acute triangular mandible. Ooecium subglobose, crowned with a sessile 
avicularium, and having a broad elliptical membranous area in front. 
Habitat. — Station 162, off East Moncceur Island, Bass Strait, 38 to 85 fathoms, sand, 
shells. 
[Bass Strait, 45 fathoms, Yoy. of Rattles.; Timor, Peron and Lesueur ; New Zealand, 
Dr. Lyall.] 
1 Brit. Mar. Polyz., vol. i. p. 52. 
2 Florid. Bryoz., pt. i. pp. 15-17. It may be remarked that Prof. Smitt has also noticed that a similar mode of 
branching or gemmation at each bifurcation, obtains in Cellularia {Scrupocellaria) cervicornis. 
(ZOOL. CHALL. EXP. — PART XXX. 1884.) Gg 4 
