MOLLUSCOIDA. 
255' 
POLYZOA. 
The folloT^^ing Polyzoa were found by Giiubb at Lossini 
(pp. 66-68) : — 
Salicornaria farciminioides (Johnst.) ; ScrujioceUarid sdmposa (V. Betipd.) ;- 
S. scritpca (Busk) ; JBugula jiahellata (Busk) ; B. plunioia (Busk) 5 Lepralict 
pertusa (Johnst.) 5 L.pallmiania (Busk) ; L. trkpinosa (Johnst. ?) ; L. reticu- 
lata (Jolmst. ?) j Cellepora pumicosa (L.) ; Eschara foUacea (Lam.) ; E. fas- 
cialis (Pall.) ; B. cervicornis (Lam.) ; Retepora cellulosa (Lamx.) ; Myriozoon 
iruncata (Pall .) 5 TubuUpora patina (Juirn.) T. verrucaria (M.-Edw.) j T. 
hispida (Johnst.); Fmtulipora prohoscidea (Blainv.). 
A. M. Norman deseribes nine new British species of Polyzoa, 
dredged chiefly near Guernsey or in the Shetland seas. 
J. Alder gives critical comments oh twelve British species of 
marine Polyzoa, the characters and synonymy of six of which 
had been previously in some confusion. The otliers are either 
new or additions to Bie British fauna. Care has been taken to 
secure authentic specimens for comparison ; and in the case of 
the Norwegian forms recently discovered by Sars, samples have 
been supplied by that naturalist. One new geniis is established. 
Figures, frqrti drawings M Alder, ate given 6f all the Species, 
old or hew, described iii these two papers, excepting Lepralid 
cruentd, Cellepord oervicohiis, and E$chdra pavonella. 
CUfelLOStOMATA; 
CELLULARIADiE.' 
Scrupocelld^d dkUliX (Audbtiin), k Meditefrtinean form, 11 ^ heiV to Britain 
(Alder, p. 107). 
MEMBUil^IPORlDi:. 
The following new species are described by ikorihan : — 
Lepralia venustu] L. complanata, L. laqueata, L. divisa-, L. politaj L. mi- 
crostoma) L. cruenta) Memhranipora sacculata. Lepralia cruefita hag been 
figured by Busk (Cat. Marine Polyzoa, p. 69, pi. 110. f. 1) as a var. of L. vio- 
lacea. 
Celleporidte. 
Cellepora ramulosa (Linn.) has the ovicells punctured, according to Busk ; 
they are smooth and imperforate. Thus it differs from C. dichdtoma (Hincks), 
from which it may also he known “ by its less spinous surface, the rostrum 
below the aperture being blunt, and, excepting in young cells, very slightly 
projecting” (Alder, p, 96). 
Cellepord cermcornis (Fleming). Alder (pp. 98-100) thinks) with Milne- 
Edwards, that this species is a true Cellepora, though, when young, it has 
the aspect of an Eschara. It is distinct from Eschara cervicornis of Milne- 
Edwards, a Mediterranean form, but is identical with E. cervicornis of 
Johnston and Busk. All the British forms described as Cellepora (or Eschara) 
cervicornis belong to the same species. 
Cellepora attenuata, sp. n., Alder (p. 97). A branched form allied to C. 
dichotoma. 
