128 LIVERPOOL BIOLOGICAL SOCIETY. 
Family. MoLGuLipa. 
Eugyra glutinans, Moller. 
Several specimens were dredged in Port Soderick Bay, 
Isle of Man, by Mr. Clubb, in August, 1886. 
A curious abnormality was noticed in the branchial 
sac of one individual, the spirally coiled stigmata being 
interrupted down one of the angles in the case of several 
meshes. One of these is figured on Plate XIII. (fig. 14). 
Molgula occulta, WKupfter. 
A dozen specimens, large and small, were dredged by 
Mr. Clubb, in Port Soderick Bay, Isle of Man, in August, 
1886. 
Molgula citrina, Alder and Hancock (Pl. XIII., figs. 7 to 12). 
This species was named and briefly described, as to its 
external appearance, by Alder,* in 1848. So far as I am 
aware, it has not been recorded or referred to for over forty 
years. The mode of attachment by the posterior end and 
part of the left side, the smooth test free from sand, the 
prominent apertures, the translucent amber colour, and 
the orange mark caused by the viscera showing through, 
are all characteristic features by which the species can be 
recognised. 
Alder and Hancock’s specimens were obtained ‘on 
the under side of stones between tide-marks, Cullercoats 
bd 
and Whitley, not common.’ I have found it during 
the last few years on the Wardie shore, near Granton, 
Firth of Forth; at Loch Ranza, Arran; on the south-west 
coast of Bute; and, in the L.M.B.C. district, at Puffin 
Island, on the Beacon Rocks, on June 26th and July 3rd, 
1887, on June 17th and 18th, 1888, and May 26th, 1889; 
* Cat. of the Moll. of Northumberland and Durham, Trans. Tyneside Nats. 
Field Club, vol. i., p. 104. 
