200 
The Irish Naturalist. 
vSeptember, 
Britannic fauna through specimens dredged west of Co. 
Mayo, while two other arctic species of the latter genus 
ventrosa, M. Sars, and A^. crenulata, lyUtkcn), already known 
from North British waters, have been dredged off the Kerry 
and Mayo coasts. Cirola^ia Ha7iseni, J. Bonnier, from the Achill 
station, already known from the Hebrides and the Bay of 
Biscay, is yet another addition to the Irish marine fauna. 
Cymodoce gi aimlatum, M.-Kdw., dredged off Galway and Mayo 
in 72 to 74 fathoms, is a most interesting addition to the 
Britannic fauna, having been hitherto found only in the 
Mediterranean. 
Of all. the species described in the paper none is of greater 
interest than Bathycopea typhlops, a blind Isopod dredged 
from two stations 60 and 77 miles W. of Achill Head, and 
from three stations 50 miles W.N.W. of the Tearaght, which is 
referred by Mr. Tattersall to a new genus, and grouped with 
lycach's Anci7ius depressus in a new family. 
Among the Munnidse, Mr. Tattersall describes as a new 
genus Metaimmna typica taken off Cleggan Head and on the 
Porcupine Bank, adds Miuma limicola, G. O. Sars (Porcupine 
Bank) to the Britannic, and Pleurogonium inei^me, G. O. Sars, 
and Parannmna bilobata, G. 0. Sars, to the Irish fauna. In 
the Desmosomidse, a new species of Ischnosoma (/. Greeni) is 
described from specimens dredged west of Achill, while 
/. bispinos7cm, G. O. Sars, a species both Norwegian and 
Mediterranean, together with the Norwegian Desmosoma 
lineai'e, G. O. Sars — both dredged off Achill — are recorded for 
the first time from Britannic waters, and Eugerda te7iuinia?ia, 
G. O. Sars— already known from Norwegian, Orcadian, and 
Mediterranean seas — is added to the Irish fauna. 
Among the Munnopsidae, Mr. Tattersall describes as new 
Munnopsis oceaftica, taken off Eagle Island, Co. Mayo, and 
refers to a new genus (Munnopsoides) a species, M. Beddardi 
dredged from the deep-water stations west of Achill. 
Munnopsoides includes also a species dredged by the 
"Challenger" off Kerguelen— so the range of the genus is 
remarkable ; while the genus Ilyarachna is brought for the 
first time within the Britannic fauna through a new species, 
/. Plunketti, dredged off both the Mayo and Kerry coasts. 
Etirycope longlpes is a new species of large size allied to the 
