360 Messrs. T. and A. Scott on some 
carrying out some scientific researches at Valentia, Ireland, 
from whom we received them for examination. We have 
much pleasure in attaching Mr. Beaumont’s name to this 
species. 
(?) Enterocola hibernica, sp. n. 
(Pl. XVII. figs. 3-8.) 
Description. In general outline somewhat like the pre- 
ceding species, but considerably larger, being about 4°5 millim. 
in length (3% of an inch). Head separated from the body by 
a distinct joint; body indistinctly segmented ; the abdomen, 
which is coalescent with the last body-segment, terminates in 
a short and somewhat pyriform caudal process (figs. 3 and 4). 
Antennules stout, four-jointed, shorter than those of Enterocola 
Beaumonti ; basal joint scarcely longer than the combined 
lengths of the next three; third joint rather longer than the 
second, end-joint very short (fig. 5). Antenne short and 
stout; basal joint without marginal teeth; second joint 
shorter than the second joint of the antenne in Enterocola 
Beaumonti, and with a single small tooth near the distal end 
of the inner margin (fig. 6). Posterior foot-jaws robust ; 
first and second joints of nearly equal length, but the first is 
more dilated; third joint much smaller, and armed with a 
short but powerful hooked claw (fig. 7). Thoracic feet 
similar to those of Enterocola Beaumonti. Ovisacs narrow, 
cylindrical, and elongate. 
Habitat. The same as Hnterocola Beaumont. 
Remarks. Enterocola hibernica, though somewhat similar 
to the species previously described, is quite distinct: not only 
is it a much larger species, but the structural differences are 
very marked. ‘The body is indistinctly segmented and the 
abdomen is coalescent with the last body-segment ; whereas 
in Enterocola Beaumonti both body and abdomen are dis- 
tinctly segmented, and the abdomen is not so rudimentary ; 
the cephalic appendages also show distinct differences. 
Though we have ascribed these Ascidian parasites to the 
genus Lnterocola of van Beneden, we are not satisfied that 
this is their true position; but whether a new genus should 
be established for them, we are not prepared to say. 
Lomanoticola tnsolens, gen. et sp. n. 
(PL AVE ties. ft, 2.) 
Description. —Female. Length about 2 millim. (,'5 of an 
inch). Body broadly subovate ; head narrow, subconical, 
with the apex somewhat truncate; between the head and 
