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rs ON RECENT POLYZOA. 515 
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In the ‘ Challenger Report’ Mr. Busk describes five new species of 
-@ellularia, and remarks on the original specimen of CO. Peachii as being 
entirely devoid of the cusp,' which Mr. Hincks speaks of as being present 
in the ‘only British species ’—Cellularia Peachii—that is known to him, 
2. Cellularia cuspidata Busk, ‘ Brit. Mus. Cat.’ 
= C. monotrypa, Busk, ‘Voy. of Rattlesnake.’ 
3. m crateriformis, Busk, ‘Chal. Rep.’ (pl. iii. fig. 1). 
4, ss cirrata, Busk, ‘ Chal. Rep.’ (pl. ii. fig. 4). 
5. is quadrata, Busk, ‘Chal. Rep.’ (pl. v. fig. 5). 
6. os biloba, Busk, ‘ Chal. Rep.’ (pl. iu. fig. 2). 
a \ elongata, Busk (n. sp. ?), ‘ Chal. Rep.’ pl. iii. fig. 3. 
? ” ornata,? Busk, ‘ Brit. Mus. Cat.’ 
= Menipea flabellata (?). 
These species have a wide geographical range, and some of the speci- 
mens were dredged from great depths—2,650, 1,900, 1,425, and 900 
fathoms—while others were derived from comparatively shallow depths— 
98 and 75 fathoms. The allied Australian species, O. cuspidata and 
. ornata, ‘closely resemble,’ says Mr. Hincks, ‘C0. Peachii in general 
character ; but in OC. ornata we meet with avicularia, . . . which are 
most sparingly developed and of a peculiar type. C. Peachii is totally 
destitute of appendicular organs.’—Brit. Mar. Polyzoa, p. 33. 
Speaking of C. cirrata, Busk, Mr. Busk remarks ‘that the general 
structure of the species is very peculiar, and together with other cha- 
racters might perhaps justify its erection into a distinct genus.’ There 
‘was only one specimen in the ‘ Challenger’ collection, and this is both 
well described and well illustrated in the Report. 
Genus 10. Menipea, Lamouroue 
= Tricellaria (sp.) Fleming, Blainville, Gray 
= Cellarina (pars) Van Beneden 
= Cellularia (pars) Johnst., Smitt. 
‘Zocecia oblong, widest above, attenuated and often elongated down- 
wards; imperforate behind, with a sessile lateral avicularium (often 
wanting), and usually one or two avicularia on the front of the cell. 
No yibracula. Zoarium jointed.'— Brit. Mar. Polyzoa, p. 36. 
Mr. Busk divides the species of Menipea into two sections, § a. For- 
nicate and 3. Aperte. Ina note (‘ Chal. Rep.’ p. 15) on Fornicate, Mr. 
Busk says, ‘A better term would have been “scutate,’’ but as Prof. 
Smitt has introduced the term “ fornix” for what I had originally named 
“ operculum,” now generally employed for the oral valve, I have adopted 
his term.’ 
1. Menipea ternata, Ell. & Sol. (Hincks, p. 38, pl. vi. figs. 1-4). 
" » British, chiefly northern. 
~ » Var. gracilis, Smitt, Arctic form, 
= Cellularia ternata (forma gracilis), Smtt. 
Cae gracilis, Busk, ‘Polyzoa N. Polar Exped.’ (No. 14.) 
In a note, p. 40, Mr. Hincks says, ‘I have received 
_' There is no cusp in the Shetland specimens given to me by Miss E. C. Jelly; 
originally from C. W. Peach’s dredgings, 1864. 
? See Menipea flabellum, Lamouroux. 
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