170 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
C. Chadwick, in 12 fms., off Bradda Head, Port Erin. 
The variety laevigatus has been taken by Mr. W. J. 
Beaumont and myself, between tide-marks, both at Port 
Erin and Port St. Mary. Ihave also taken it at Plymouth. 
26. Oligocladus sanguinolentus, Quatr.(P1.XIV,fig.42,45.) 
Length 6—7 mm. Body elongated, oval, broadly 
rounded behind, slightly narrowed in front. A pair of 
long, conical marginal tentacles are present, and between 
them the anterior extremity projects shghtly. Ground- 
colour white, against which the deep carmine-coloured 
intestine is distinctly visible. The mouth is far forward, 
in front of the brain. The strong muscular cylindrical 
pharynx, is enclosed in a sheath which gives off a posterior 
coecum extending behind the mid-ventral sucker. 4—5 
pairs of secondary branches arise from the straight main- 
out. The first pair enclose the pharynx and unite in front of 
it. From this junction a short median offset represents the 
unpaired branch which in other Polyclads arises directly 
from the main-gut. A terminal gut-branch enters each 
tentacle. Eyes are present round the bases of the tentacles 
and also as a couple of small sharply-defined groups over 
the brain. The male genital aperture lies just behind the 
brain. The female pore surrounded by the radiating 
masses of the ‘“shell-gland,” is placed half-way between 
the male pore and the mouth. 
This species, hitherto only recorded by Kohler, from 
Guernsey,* was dredged on several occasions among shell- 
débris outside Port Erin Breakwater. I have also found 
it under similar conditions at Plymouth. 
Eurylepta cornuta which probably occurs, though I have 
not met with it, in the L.M.B.C. district, differs from this 
species by its large size (sometimes an inch long), scarlet 
colour, and elongate group of eyes over the white pharynx. 
*Annals & Mag. Nat. Hist., XVIII, 1886. 
Jn 
