AMPHIPODA. 
397 
body 6 lines ; of upper antennae 1 line ; of lower antennae 4 lines ; general 
colour yellowish-pink ; eyes red ; lateral or abdominal plates adorned 
with scarlet stellate, markings, of which there are five or six on those 
nearest the head : they become gradually fewer on those towards the tail, 
so that not more than one appears on the hinder plates. These markings 
render it very beautiful. My Anonyx is distinct from a British species 
(locality unknown) in the collection of the British Museum. As this is 
not included in the lately published Catalogue of the Crustacea therein 
contained, the present is the first notice of the genus as British.* 
Genus Cerapus. 
C. falcatus, Mont. (sp.). 
I agree with M. Edwards (vol. iii. p. 61) in considering the forms bear- 
ing these two names as one species : Leach looked upon them as different. 
Both, as distinguished by the form of the claw, are among my specimens, 
of which a number were dredged in Strangford Lough in Oct., 1839, by 
Mr. Hyndman and myself. Among the roots of a large plant of the 
tangle ( Laminaria digitata) brought me from Donaghadee by Edmund 
Getty, Esq., in Aug., 1846, were several specimens. 
Devonshire (Mont.) and the Bell Rock (Leach) are the only published 
localities I have seen for this species. 
Genus Corophium. 
C. Longicorne, Latr. 
J. V. Thompson’s and Templeton’s catalogues. Belfast and Strang- 
ford Loughs. 
Genus Hyperia. 
H. galba, Mont. (sp.). 
Found in the pouches of Rhizostoma Cuvieri on the Dublin coast in 
the autumn of 1838, by Mr. Hyndman. 
Only noticed by Montagu as found on the South coast of Devon. 
II. Latreillii, Edw. 
Obtained at Youghal by Dr. Ball nearly thirty years ago (“ about 
1818”) in great numbers in the cavities of a Rhizostoma. This species 
has not been noticed by any English author, but specimens of Leach’s, 
marked “ British coast,” are in the British Museum. M. Edwards men- 
tions it as found on the coast of France. 
Genus Lestrigonus. 
Lestrigonus, sp. 
An individual of this genus is in the same phial with the last, and 
was obtained from the cavities of the same Rhizostoma with them. 
It has become so soft in the spirits from incipient decay as scarcely 
to admit of specific description. With respect to the genus, I have the 
opinion of Mr. Bell in addition to my own. Of the two species of this 
genus described, one is from India, the other from Greenland. (Edw. 
Hist. Crust., vol. iii. p. 82.) 
* Anonyx , genus ?, or rather a form between it and Stegocephalus, Kroyer, was 
dredged from a depth of 23 fathoms (shelly sand) in Belfast Bay, in Oct., 1846, 
by Mr. Hyndman. 
