248 
LUCERNARIA AT SCARBOROUGH. 
JOHN IRVING, M.D., 
Scarborough, 
Lucernaria campanulata has made its appearance in South 
Bay, Scarborough. As far as I know it has not hitherto been 
found in this locality. I saw it for the first time on 7th May, 
at low tide, in an open tidal pool bottomed with flat rocks 
variegated by red, green, and brown weeds. In the inter- 
secting rock channels, where the depth of water varied from 
twelve to eighteen inches, the oak-tree seaweed, Halidrys 
siliquosa, with its long floating fronds, was plentiful. Individual 
lucernarians—about thirty altogether—were sparsely dis- 
tributed over a fairly wide area, securely attached by their 
Lucernaria campanulata. 
Fig. 1.—Lucernaria, 4-nat. size, attached by (a) contracted aboral disc to Halidrys siliquosa ; 
(b) bell-shaped body; (c) claw-shaped tentacular tufts surrounding oral entrance. 
Fig. 2.—Diagram of internal arrangement; (¢) tentacular tufts; (7) mouth; (s) sperm- 
masses: (0) genital bands showing white egg masses in central position. 
Fig. 3.—Extended pedicle (p) with anemone-like disc (d). 
Fig. 4.—Cluster of capitate tentacles from young specimen as seen under microscope (1}-in. 
objective). 
aboral discs tc Halidrys branches, and only discernible by 
careful scrutiny owing to the perfect harmony of their environ- 
ment, and the fact that a large patch of seaweed rarely yielded 
more than one specimen. Not one was discovered unattached, 
or adherent to rock, or any other species of seaweed. In 
colour they resembled ordinary beadlet anemones.  Dark- 
brown forms were most common, but reddish-brown, red, and 
deep green were in evidence. One very young specimen, 
about a quarter of an inch long, white and semi-translucent, 
except for numerous light-brown lines and spots scattered 
over bell and stalk, was valuable for microscopic study. Living, 
as it did, for more than a fortnight in a glass cell, containing 
Naturalist, 
