REPOET ON THE POLYZOA. 
41 
(intra-tentakulare Leibeswand, Nitsche), through which passes on one side the 
oesophagus and on the other the rectum. 
3. All the Pedicellinidse are furnished with a more or less mobile stem, which is 
either flexible and contractile throughout, or as in Pedicellina gracilis, partially flexible 
and partially rigid, or as in Ascopodaria, wholly rigid and chitinous, its motions 
being effected by a peculiar muscular apparatus at the lower end. 
The only forms belonging to this Family that I have noticed in the Challenger 
collection belong to an apparently distinct genus, to which in 1878 I had given the 
MS. name of “ Ascopodaria ,” as stated in Professor Allman’s Linnsean address of 1879. 
In 1880, however, Mr. Hincks, in a description of some Arctic Polyzoa, described and 
figured under the name of Barentsia bidbosa, a pedicelline species, which, though 
apparently quite distinct specifically from either of the two Challenger forms, evidently 
belongs to the genus I had already proposed to establish. In strict right of priority of 
publication, therefore, his name should have precedence over that merely provisionally 
given by me, and I should without hesitation have adopted it, but since then he lias 
described and figured a second species, referable, from my point of view, to the same 
genus, under the name of Pedicdlinopsis fruticosa, 1 thus giving two distinct names to 
the same generic type. I have, therefore, felt justified in retaining my original 
appellation, and in regarding Barentsia and Pedicdlinopsis as synonyms. As an 
additional argument, though one of less weight, in favour of the course I have pursued, 
I might cite the appropriateness of the title I chose, indicative as it is of the main 
peculiarity of the genus. 
The Family here contains : — 
1. Ascopodaria. 
(1) Ascopodaria fruticosa, Hincks, sp. (Pis. IX., X. figs. 1-5). 
(2) Ascopodaria discreta, n. sp. (PI. X. figs. 6-12). 
1. Ascopodaria, Busk. 2 
Ascopodaria, Bk. (MS.), Add. by Prof. Allman, Journ. Linn. Soc. Lond. (Zool.), vol. xv. p. 2. 
Barentsia, Hincks, Ann. and Mag. Nat. Hist., ser. 5, vol. vi. p. 285 ; Vigelius, Bijd. Dierk. Genoot., 
Nat. Art. Mag., Amsterdam, Aflev. ii. pt. 2, p. 85. 
Pedicdlinopsis, Hincks, loc. cit., vol. xiii. p. 363. 
Pedicellina (pars), Sars, Leidy. 
Character. — Polypide budding from and supported at the extremity of a chitinous, 
tubular, perforated stem, which expands below into a cylindrical, barrel-shaped dilatation, 
lined internally by a layer of longitudinal muscular tissue. 
1 This species is the same as one of the two Challenger forms to which I had given the name of Ascopodaria socialis, 
hut I have now as a matter of course adopted Mr. Hincks specific name. 
2 From ccsko;, a wine-skin, rrovg, a foot. 
(zool. chall. EXP. PART L. 1886.) 
Ddd 6 
