88 . Rev. A. M. Norman on undescribed 
Lepralia cruenta, n. sp. 
Lepralia violacea, var. cruenta, Busk, Cat. Marine Polyzoa, p. 69, pl. 110. 
fig. 1. 
L. cellulis vix definitis, subovalibus, salebrosis, granulatis, paucis at 
magnis puncturis perforatis ; orificio subcirculari, simplici, margi- 
nibus rotundate inflatis, a cellularum apice remoto; colore cruento 
vel nigrescente. 
This is certainly not an overgrown state of L. violacea. The 
many specimens which I have seen, some of which were dredged 
by myself and some by Mr. Barlee in deep water at Shetland, all 
agree in those characters which are well represented in plate 110. 
fig. Y of ‘The Catalogue of British Marine Polyzoa” If Mr. 
Busk had been better acquainted with the form at the time he 
published his work, I feel satisfied that he would not have re- 
ferred it to L. violacea. The cells of L. cruenta are larger and 
broader than those of L. violacea ; there is usually a slight depres- 
sion in the median line of the former, but it seems to me to bear 
no resemblance to the central pore of the latter. The species is 
remarkable on account of the massive thickness of the cell-walls, 
their very rugged surface, and the position of the mouth, which 
is at some distance from the anterior extremity of the cell. The 
cells are ill-defined, but nearly ovate; their surface is not only 
undulated and (to employ a word which best expresses the ap- 
pearance) puffy, but also roughly granular, and perforated here 
and there with large cellules. The thick cell-walls close in the 
nearly circular mouth with a broad, rounded fillet. The ovicells 
of the species are unknown to me. Deep red is the usual colour 
of L. cruenta, but one of my examples is blackish ; this, however, 
may be the colour of the polyzoary if dead before it is dredged. 
LL. cruenta is generally in small roundish patches on large 
stones brought up from 70-100 fathoms, and is more rarely 
found on shell. 
Genus MemsBranirora (De Blainville). 
Membranipora sacculata, n. sp. Pl. XI. fig. 3. 
M. cellulis rhomboideis, membrana nitida, tenui, subtiliter granulosa 
obductis ; orificio magno, cellularum dimidium fere occupante, ad 
latera paulum contracto, itaque tres sinus inconspicuos for- 
mante ; peristomate inermi, crenato et cum margine cellularum 
elevato crenato continuo ; ovicellulis semiellipticis, tumidis, supra 
leevibus, infra spatio triangulari subtiliter granuloso ; aviculariis 
rarissimis, inter cellulas sitis, mandibulis triangularibus acutis 
superne directis. 
The cells of this species are regularly rhomboidal or lozenge- 
shaped, margined with a much-elevated crenated rim, and co- 
yered in on their lower half with a thin, glistening, minutely 
