31 
Bryozoa of the Bay of Naples. 
stinct umbo ; and this is evidently the same as L.perugiana of 
Heller ; so that, if necessary, we may consider there is a variety 
with an umbo and one without. 
A Red-Sea specimen in my possession has no umbo; and 
there is also one in the British Museum from Kino Channel, 
Japan, in which the form and measurement of the aperture are 
just the same as in that from Naples; but there is no distinct 
imperforate area, nor on the small fragment are there any 
ovicells. 
Loc. Cornwall, Jersey, Adriatic, Red Sea, Japan. 
2. Lepralia vulgaris , Moll. (PI. X. figs. 1, 2.) 
Enchant vulgaris, Moll, Seerinde, p. 61, pi. iii. fig. 10, A, B. 
Lepralia vulgaris, Busk, Quart. Journ. Micr. Sci. vol. vi. 1858, p. 127, 
pi. xviii. fig. 3. 
Flustra Duterei, Aud. in Sav. Egypte, pi. 9. fig. 2. 
Cellepora otophora, Reuss, Foss. Polyp, d. Wien. Tert. p. 90, tab. 11. 
fig. 1. 
Lepralia otophora, Reuss, F. Bry. Oest.-Ung. Mioc. p. 164, tab. 8. fig. 5. 
?Lepralia tumida, Manz. Bryozoi di Castrocaro, p. 25, tab. iii. fig. 33. 
Lepralia intermedia, Reuss, Oest.-Ung. Mioc. p. 160, tab. 8. fig. 11. 
Although here cells are figured without a central umbo, I 
find that the majority have an umbo which is very variable 
in size, and there is also a projection on the ovicell. 
The sinus of the oral aperture is well marked ; and the tooth 
of the operculum, which fits into it, spreads out and terminates 
with a rounded edge. The width of the operculum (2*) is 
0T08 millim., height ‘08, length of sinual tooth ’028. 
Loc. Oligocene, Miocene, and Pliocene (see 1 Bry. from 
Bruc.’). Living: Ireland, Cornwall, Madeira, Mediterranean. 
3. Lepralia pertusa, Esper. (PI. VIII. fig. 5.) 
It seems that under this name two distinct forms are mixed 
up, as some have the proximal edge of the operculum rounded, 
and others with a distinct sinus; but until I have the oppor¬ 
tunity of examining more material I will only separate them as 
vars. rotundata and sinuata. 
Var. rotundata. This is the variety in the British-Museum 
collections; and from Naples I have it without any avicularia, 
and also with an avicularium below the aperture, as in auri- 
culata. This may be called var. armata. 
Var. sinuata. This is the form drawn, and is the one figured 
by Manzoni (Supp. a. Fauna, pi. ii. figs. 5, 6). This some¬ 
times has no avicularia, but very frequently one or two at the 
sides of the aperture. 
Operculum (3*) *168 millim. wide, ‘160 long, including 
sinus. 
