1875. ] MR. G. S. BRADY ON BRITISH MARINE MITES. 305 
sided, with sinuations at the origin of the limbs; it is hyaline and 
colourless at the margins; but the interior is almost filled with a 
flesh of deep blue-black hue, perfectly opaque, and of defined, sub- 
regularly sinuous outline. In the centre of the back, just behind 
the head, is a bright ruby-like round eye, placed in front of the 
opacity and between the first legs. 
‘‘ The head, formed by a great lip, projects in front and carries two 
small palpi, thick at the base, conical and pointed. Below, the lip 
is divided longitudinally, each half being slightly incurved and 
pointed, the two divisions approaching in a pincer-like manner. 
Under slight pressure there were projected between the palpi two 
slender styles, which doubtless represent the mandibles ; and hence 
I am not sure whether the species should not range under the genus 
Raphignathus of Dugés. 
“The legs are about equal and alike ; the fourth and sixth joints 
are large and swollen; the seventh is the largest and tapers abruptly 
at the middle like a claret-bottle ; the tip forms a little round disk, 
whence diverge a pair of curved hooks, with plain edges, but two- 
toothed at the tip, or rather having a prominent tooth over the tip. 
“All the joints are well furnished with straight bristles, the sixth 
having one much longer and stouter than the rest. The limbs are 
set in two series, the first and second originating close together, but 
remote from the third and fourth, which are also contiguous to each 
other.” 
Not having seen any undoubted specimen of this species, I have 
transferred Mr. Gosse’s description, which was drawn from specimens 
taken at Ilfracombe. 
Mr. Norman notes it as being “ abundant on weeds in rock-pools, 
Balta Sound, Shetland.” 
PACHYGNATHUS SEAHAMI, Hodge, Trans. Tyneside Nat. F. C. 
vol. iv. p. 319, pl. xvi. figs. 1 a, 6, c. 
This species agrees in every respect with the foregoing, except in 
the structure of the claws, which are angularly bent and finely cilio- 
pectinate on the inner margin. _ It may perhaps be doubted whether 
it ought to rank as a distinct species, though Mr. Gosse appears to 
have been disposed to think so, after having seen Mr. Hodge’s 
specimens. The type specimens were taken on the Durham coast ; 
and I have myself found it plentifully on weeds between tide-marks at 
Sunderland, in the Scilly Islands, and on the west coast of Ireland. 
PacHYGNATHUS MINUTUS, Hodge, Trans. Tyneside Nat. F. C, 
vol. iv. p. 301, pl. xvi. figs. 10, 11. 
Length ;}, of an inch: colour reddish brown ; shield truncate at 
insertion of first legs. Rostrum a stout bulb, tapering abruptly, and 
terminated by two lip-like organs ; legs short and stout, the third 
and fifth joints swollen, sixth tapering abruptly and terminating in 
two falcate claws, which have a small tooth on the outer edge ; 
between the claws a small hook. LEye single, situated behind the 
rosttum. Body minutely corrugated and pitted. Legs three pairs, 
Proc. Zoou. Soc.—1875, Ne. XX. 20 
