206 LIVERPOOL BIOLOGICAL SOCIETY. 
*Triteta gibbosa, Bate. 
Atylus gibbosus, Bate and Westwood. 
Not uncommon on Sponges, Ascidians, &c. I., II, I. 
Most easily obtained by placing freshly gathered pieces of 
Halichondria panicea in sea water, when it emerges from 
them. 
Halirages bispinosus, Bate. 
Ib, Glog IW 
Calliopius leviusculus, Sp. Bate. 
Very abundant. I.d. All the specimens taken were 
freckled with red. This species varies in colour remarkably 
in different localities. At Colwyn Bay it is generally 
greenish white, while those I have seen from Penmaen- 
mawr were olive coloured. 
*Calliopius norvegicus, Rathke (?). 
Llandudno. I.0., III., [V. It is remarkable that this 
species, which has not been. previously recorded as British, 
should this year have been taken at all the above localities, 
at Bull Bay (1V.) abundantly. Mr. Stebbing informs 
me, however, that it is not uncommon at Ilfracombe. 
Meinert+ and Zaddach?{ do not consider it distinct from 
the preceding. I am surprised at this statement, for the 
longer and more slender antenne, the teeth on the under 
side of the last jomts of the peduncle of the upper antennze 
in the male (in place of the strong tooth at the distal 
extremity of the last joint in C. leviwsculus), the smaller_ 
and weaker gnathopods with the wrist not produced into a 
spur, and lastly the angulated hind margin of the third 
pleon segment above the lower angle, make the distinction 
unmistakeable. At the same time, I doubt whether 
C. norvegicus of Boeck (which is certainly our species) 
+ “Crust. Isop. Amphip. und Decap. Danie.” Natur. Tidsk, 1877-8. 
+ “Die Meeres-Fauna an die Preuss. Kiiste.” 5 tt 
