British Hydrozoa, Actinozoa, and Polyzoa. 85 
the simple peristome. Ovicell in the form of a helmet, punc- 
tured in the same manner as the cells, and surmounted by a 
small avicularium. 
Dredged on shell off Guernsey, in about 10 fathoms (1859). 
This well-marked form is not likely to be confounded with 
any previously described Lepralia that we are acquainted with. 
Lepralia complanata, n.sp. Pl. X. fig. 4. 
L. cellulis rhomboideis, planis, immersis, perforatis, lineis elevatis 
inter se separatis ; orificio semicirculari, margine inferiore recto 
evexo, superlore convexo inermi; ovicellula minima, depressa, 
lunata, leevi. 
Cells lozenge-shaped, much flattened, having their surface 
punctured and separated from each other by elevated lines. 
Mouth semicircular, with the upper lip well arched and not 
furnished with any spines, and the lower lip nearly straight, but 
pouting. Ovicells depressed, in the form of a quarter-moon, 
and having their surface smooth. 
This species was found among the valuable collection of 
British Zoophytes accumulated by my late friend Mr. Barlee, 
and bequeathed to me by him. It is lodged in the little hollows 
of a rounded and much water-worn piece of coarse-grained 
granite. This fact may probably hereafter lead to the identifi- 
cation of the exact locality of the specimen, which (there being 
unfortunately no label attached) is at present unknown to me. 
In company with it on the stone were Membranipora spinifera, 
Lepralia spinifera (true), and Lepralia punctata. 
Lepralia laqueata, n. sp. Pl. X. fig. 5. 
L. cellulis rhomboideis, latis, subimmersis, granulosis, puncturis 
marginualibus magnis lineisque elevatis sejunctis ; orificio semicir- 
culari, margine superiore dentibus tribus (?) plerumque evane- 
scentibus armato, inferiore recto evexo denticulum penitus collo- 
catum desuper spectato ostendente ; ovicellula rotundata, convex- 
juscula, subimmersa, granulosa, ad marginem perforata. 
Cells lozenge-shaped, nearly immersed, having their surface 
granular, and pierced with a single row of large punctures 
round the margin. The cells are separated from each other by 
raised lmes. Mouth semicircular, apparently armed when pers 
fect with three teeth on the upper margin, but in all the speci- 
mens I have seen only the stumps remained. The lower margin 
of the mouth is straight and considerably pouting. A den- 
ticle is situated within the lower lip, but is so deeply seated that 
it cannot be seen when the cell is viewed in front. The ovicells 
are round and nearly immersed, being only slightly convex. 
