370 
CRUSTACEA. 
Genus Inachus. 
I. Dorsettensis, Leach. 
This species is stated by Mr. J. V. Thompson to be common in the 
harbour of Cove. Ent. Mag., vol. iii. p* 371. It is pretty commonly brought 
up from deep water in the dredge in the Loughs of Strangford and Bel- 
fast, but in much smaller quantity than Macropodia phalanyium. Under 
similar circumstances it has been procured by us at Killery, on the 
western coast. Dr. Ball finds it in Dublin Bay. All the examples ' of 
this crab which I have taken were invested with sponge, which generally 
covers over the body, arms, and legs ; algae and zoophytes likewise spring 
from it. In this extraneous matter some of the smaller Crustacea find 
shelter, and, together with the other objects, render the capture of the 
Inachus Dorsettensis interesting far beyond the acquisition of itself. 
Capt. Beechey, R.N., of H.M.S. Lucifer, brought up a specimen of this 
Inachus alive in the dredge, from a depth of about 140 fathoms off the 
Mull of Galloway. See Annals for Sept. 1846, p. 21. 
I. leptochirus, Leach. 
In the 7th vol. of the Annals I noticed an example of this species hav- 
ing been dredged in Clifden Bay, Connemara, during a natural history 
tour made to that quarter by Dr. Ball, Prof. Forbes, Mr. Hyndman, and 
myself ; and that about the same time a specimen was procured by Mr. 
It. Patterson in Belfast Bay. Subsequently, I have seen specimens from 
the latter locality in the Ordnance collection. 
I. Dorynchus, Leach. 
Among a number of Crustacea dredged in Belfast Bay in the summer 
of 1838 by my friend Dr. J. L. Drummond, and kindly sent to me, was 
an example of this species. Specimens from the same locality are in the 
Ordnance collection. Larne Lough, Mr. Darragh. 
Genus Pisa. 
P. tetraodon, Leach. 
In the collection of Dr. Ball, now in the Dublin University Museum, 
are two examples of this species, which were obtained at Boundstone, 
Connemara, by Mr. M‘Calla. 
In August, 1841, I found several of the P. tetraodon thrown ashore at 
Compton, Isle of Wight. 
Genus Hyas. 
H. araneus, Leach. 
Mr. Templeton has noticed this species as taken at Carrickfergus ; and 
native specimens are in Mr. J. Y. Thompson’s collection. It has been 
obtained at Youghal and Dublin by Dr. Ball. We take it by dredging in 
the Loughs of Strangford and Belfast, where, too, it is commonly thrown 
ashore. In the estuary at little more than half a mile from Belfast, a 
number of large specimens of this crab were captured in the month of 
October, 1839, on the hooks attached to hand-lines, much to the surprise 
of the fishermen, who had never met with them so near the town before, 
or in brackish water. The lug-worm ( Lumbricus marinus ) was the bait at- 
tacked in this instance by the crabs. Ilyas araneus was taken in the dredge 
at Bundoran, and dead on the beach off Clew Bay, on the western coast, by 
our party in July, 1840, and very small living specimens were found under 
