30 BRITISH COPEPODA. 
swimming-feet are nearly equal in length, but the 
branches of the first pair (fig. 8) are only 1-jointed, 
and their marginal sets are comparatively short; 
branches of the three following pairs slender, the 
outer branch (fig. 9) having two apical spines, one 
long and one short; sete of the inner margins long 
and slender. [Fifth pair in the female foliaceous, 2- 
jointed, bearing a few marginal sete (fig. 10), the 
joints nearly equal in length; in the male (fig. 11) 
1-jointed, elongated, curved, bearing two long sete at 
the apex, and one on the outer margin. Colour deep 
yellowish brown. Length 35rd of an inch (‘77 mm.). 
Dredged in twenty-five fathoms four miles off 
Marsden (Durham) amongst rough sand ; in thirty-five 
fathoms off Robin Hood’s Bay (Yorkshire), amongst 
filagrana implexa, and off Red Cliff (Yorkshire) : 
Oban (Rev. A. M. Norman). The Rev. A. M. 
Norman also records the occurrence of ‘ A. falcata,” 
which I believe to be properly referable to this species, 
“amongst Laminarve in Bressay Sound ”’ (Shetland). 
Dr. Claus’s specimens were found at Heligoland and 
Naples, and Boeck’s at Christiania. 
2. AMYMONE LonGIMaNna, Claus. Pl. XLIX, figs. 12,. 
13. 
Amymone longimana, Claus. Die frei-lebenden Copepoden, p. 115, 
t. xx, figs. 13, 14 (1865). 
Anterior antenne of the female stout and 6-jointed 
(Claus), of the male (fig. 12) closely similar to those of 
