Amphipoda and Isopoda 211 



dilatata, 1 Gr. 0. Sars ; Cirolana Hanseni? Bonnier (both recent additions 

 to the British and Irish fauna) ; Metamunna typical Tattersall, a 

 recently described 4 form from the west coast of Ireland ; and 

 Eurycope latiuostris, 5 Gr. 0. Sars, from two new British localities. 



I am greatly indebted to Dr. Wolfenden for entrusting this collec- 

 tion to my charge, and have much pleasure in associating his name 

 with one of the new species here described. 



Amphipoda. 



Family, Lysianassid^. Genus, Anonyx, Kroyer. 

 Anonyx Wolpendeni, sp. nov. (Plate IV., Figs. 1-17.) 



Locality.— Lat. 39° 53' N., Long. 26° 32' W., 1904. Dredge, 

 600-700 fathoms. 



Body moderately slender and slightly compressed laterally ; com- 

 bined length of the metasome and urosome slightly greater than that 

 of the cephalon and mesosome. 



Cephalon shorter than the first segment of the mesosome ; rostrum 

 almost obsolete ; lateral lobes not prominent, the margin of the head 

 between the bases of the superior and inferior antennae being, in fact, 

 practically straight. 



First segment of the mesosome longer than any of the remainder ; 

 third, fourth, and fifth segments, subeqnal in length, slightly shorter 

 than the second, and a little longer than the subequal sixth and seventh 

 segments ; coxal plates more or less closely resembling those of the 

 other species of the genus. 



1 Twenty-five miles north-north-west of Butt of Lewis, August 16, 1902, 80 

 fathoms. 



2 Lat. 39° 53' N., Long. 26° 32' W., 1904, 600-700 fathoms, dredge. 



3 Twenty -five and forty-five miles north - north - west of Butt of Lewis, 

 August 16, 1902, 80 and .110 fathoms. 



1 'Fisheries, Ireland, Sci. Invest.,' 1904, ii. (1905). 



5 Twenty-seven miles north-north-west of Rona, August 15, 1902, 120 fathoms ; 

 twenty-five miles north-north-west of Butt of Lewis, August 16, 1902, 80 fathoms. 



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