12 Prof. M‘Intosh’s Notes from the 
anterior process is a tuft of translucent bristle-like fibres, 
probably caused by rupture. The free extremity of the 
elongated anterior process presents an irregular edge from 
low papille, but whether it represents an introvert can only 
be conjectured. At its base is an elongated and apparently 
tubular structure, which may have issued from the body 
at the bristle-like fibres. In certain views (Pl. III. fig. 11) 
the basal region of the long anterior process is asymmetrical, 
probably when seen laterally. No fold or break occurs in 
the outline as the process leaves the body, and its sides are 
perfectly smooth. The widest part is at the base, as shown 
in the figure; it then is nearly cylindrical for some distance, 
and again slightly widens as it approaches the bulbous end, 
which in the position occupied in the figure is not quite 
symmetrical. So far as observed, only longitudinal muscular 
fibres are present in the process, and the cuticle must be 
extremely thin as there is no sign of it laterally. In the 
centre of the process is a granular tube occupying more than 
half its diameter. 
The body is invested by a tough cuticle, with papille here 
and there and the group already mentioned at the posterior 
end (Pl. IL. fig. 12). The circular fibres beneath are fairly 
developed throughout and the longitudinal layer is powerful. 
Enclosed in the body-cavity were many ova of various sizes, 
the smallest presenting the appearance of naked granular 
cells with a large nucleus and nucleolus, the larger having a 
tough, apparently chitinous capsule. ‘The bristle-like fibres 
of the anterior end seem to have been due.to rupture and 
the spreading out of the stiff tapering muscular fibres. 
2. Recent Additions to the British Marine Polycheta 
(continued). 
In 1908* it was stated that no member of the Alciopide 
had yet been met with in British waters, but there was no 
reason why such should not be found, e.9., “‘ off the southern 
shores of England and the West Coast of Ireland.” The 
skill and perseverauce of those on board the Irish Fisheries’ 
ship ‘ Helga,’ indeed, shortly afterwards added no less than 
five species to the British Fauna from the surface of the 
deep water off the West Coast of Ireland. It was Greef 
who first in modern times brought the group into notice, 
and he was followed by Hering. Both divided the Alciopide 
into two main groups, the former using the head, feet, 
bristles, and proboscis as the leading features of distinction, 
%* Monograph,’ vol. il. part i. p. 112. 
a 
