432 SPH BROMIDA. 
seventh segment of the body and the basal portion of the 
tail. The body is rather narrow, and smooth on the 
upper side of the anterior portion. The tail is very 
rugosely granulated, and furnished in the middle of its 
upper surface with two erect tubercles. The outer 
division of the lateral appendages extends considerably 
beyond the extremity of the body; it is oblong, and 
slightly pointed at its extremity; its surface rugose, and 
its edges strongly bristly. 
Taken on the south-west coast of England* by 
Montagu and Leach; also at Polperro, Cornwall, by Mr. 
J. Couch; at Carrickfergus, Lough Shinny, Dublin, by 
Dr. Kinahan; Cork, Professor J. R. Greene; Roundstone, 
Mr. W. M‘Calla; coast of Ireland, Professor Huxley ; 
also Vagon Bay, Guernsey, by the Rev. Alfred Norman. 
We have found it common amongst weed between tides 
on the rocky shores of South Wales, South Devon, and 
Cornwall; and believe it may be met with in similar 
localities all round our coasts. It is generally associated 
with Dynamene Montagui, of which we think it may 
possibly turn out to be the male. 
* Dr. Leach, by a lapsus calami, says :—‘‘ Habite les rochers de la partie 
occidentale de l Amerique.” 
