56 Scientific Proceedings, Royal Dublin Society. 
Instead of the strong decurved blades of that species with their 
characteristic notch, these are thick and round at the base with a 
gap between them, and shortly from their origin they suddenly 
diminish, and are drawn out into fine hair-like points which 
describe a gentle curve. On one occasion these two species 
happen to be side by side in the same field of view, and the 
similarity in their appearance and manners was most striking, but 
the different character of the toes was really ludicrous, those of the 
former so powerful for all purposes, those of the latter so apparently 
impotent, as though Dame Nature had captiously changed the de- 
sign midway. What wonder if the once active creature should at 
length sink into the drifting existence of Furcularia longiseta. 
In Plate xxx1. fig. 17, of the “‘Supplement,”’ there is a figure 
given showing somewhat the same formation of the toes, but the 
abrupt elevation of the shoulder in that species and the position of 
the frontal disc, which is quite prone, proves it to be distinct. 
Several from different localities have occurred. 
Habitat.—Ponds, ditches, bogs, Co. Wexford. 
Furcularia megalocephala, sp. nov. 
[Pl. IV. fig. 3.] 
Sp. Ch.—Head very large ; face oblique; body tapering to the 
' foot ; toes long, simple, decurved, and finely pointed. 
The most prominent feature of this species is its head; indeed 
it gives one the idea of being all head, so large is it in proportion 
to the rest of the body. It has also a formidable way of drawing 
down and inverting the middle of the coronal disc as though it 
intended to devour all before it, recalling to mind pictures of that 
wondrous Whale of ancient days prepared to swallow up unhappy 
Jonah. The long forcipate trophi are frequently protruded with a 
snap; there is a long tubular brain which descends from the fore- 
part of the head to the fold of the neck. The foot appears to be 
but one large joint, the toes long decurved blades finely tapered 
to a point and without a notch at the base. The body, which 
narrowed down suddenly from the head, was pretty—glistening 
white, the stomach filled with bright green food making a pretty 
contrast of colour. Length about ~1,th of an inch. 
Habitat.—Not uncommon in bogs and streams, Co. Wexford. 
