536 REPORT—1885. 
Genus 35. Foveolaria, Busk (‘Chal. Rep.’ p. 68). 
Zoarium erect, branched and cylindrical, or foliaceous and bilaminar. 
Front of zocecia with a thick granular border very deeply imbedded in a 
pit formed by the thickening of the general ectocyst. A sessile 
avicularium immediately below or in front of the lower border of the pit. 
1. Foveolaria elliptica, Busk, ‘ Chal. Rep.’ pl. xxiii. fig. 5. 
2. bf orbicularis, Busk, ‘Chal. Rep.’ pl. xxiii. fig. 4. 
3. a tubigera, Busk, ‘Chal. Rep.’ pl. xiv. fig. 4. 
4., ‘ falcifera, Busk, ‘Chal. Rep.’ pl. xv. fig. 6. 
Genus 36. Pyripora, D’ Orbigny. 
Type of genus, Hippothoa (Membranipora) catenularia, Jameson. 
Now that I have given a full list of the whole of the species, in the 
several divisions of the MrmpBraniporipa, Busk (‘Challenger Report’), 
I do not think that it will be considered at all out of place if I furnish, 
to the best of my ability, a full list of described forms, details of which 
will be found in the works of Mr. Busk (‘ Brit. Mus. Cat.’), Mr. Waters 
(‘ Bay of Nap. Bryozoa’ and ‘ Papers on Australian Bryozoa’), Mr. Hincks 
(‘Brit. Mar. Polyzoa’), and Contributions, &c. ‘Ann. Mag. Nat. Hist.’ 
Many of the species—thanks to the kindness of Miss E. C. Jelly—are in 
my cabinet; and even now, from what I know of undescribed species, 
many remain yet with manuscript names, which will ultimately find 
their proper place in our lists. For obvious reasons I include no species 
in the list which have not been fully described. 
Family. Membraniporide, Hincks. 
‘Zoarium calcareous or membrano-calcareous, incrusting. Zocecia 
forming an irregular continuous expansion, or in linear series, with raised 
margins, and more or less membranaceous in front.’ — Brit. Mar. 
Polyzoa, p. 126. 
Genus. Membranipora, Blainv. 
‘Zoarium incrusting. Zocecia quincuncial or irregularly disposed, 
occasionally in linear series ; margins raised ; front depressed, wholly or 
in part membranaceons.’— Brit. Mar. Polyzoa, p. 128. 
a. With a membranous front wall. 
British Species. 
1. Membranipora Lacroixii, Aud. (op. cit. p. 129, pl. xvii. figs. 5-8). 
2. . Monostachys, Busk (op. cit. pl. xvii. figs. 3, 4, 
pl. xvii. figs. 1-4). 
3 i Var. a, fossaria, Hincks. 
4. A catenularia, Jameson (p. 134, pl. xvii. figs. 1, la, 2). 
5. . pilosa, Linneus (op. cit. p. 137, pl. xxiii. figs. 1-4). 
6. 53 Var. a, dentata, Hincks. 
Oe Ae Var. 3, laxa, Smitt. 
he ¥ Var. y, (Pallas’s sp.) 
8. Hi membranacea, Linn. (op. cit. p. 140, pl. xviii. 
figs. 5-6). 
Oo. $s hexagona, Busk (op. cit. p. 143, pl. xviii. fig. 7). 
10. 5 lineata, Linn. (op. cit. p. 143, pl. xix. figs. 3-6). 
