188 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
taken in any abundance, I recollect on one occasion 
finding hundreds in one night’s townetting off Puffin 
Island in May, 1889. The many jointed anterior antenne 
serve to distinguish this from the next species. 
Cyclopina gracilis, Claus. (Pl. XVII, fig. 3.) 
Length 0.45 mm. Less common than the last species, 
but occurring occasionally in townettings taken near land. 
Anterior antenne, eleven jointed. 
Cyclops marinus, no. sp. (PE XOXGDXe ie IES ss) 
Length 1.20 mm. Body ovate (fig. 1) with long ab- 
domen. Anterior antenne (fig. 2.) 12 jointed, the first 
joint being the longest, and the eighth almost as long 
but narrower, the third and sixth joints being very short. 
Posterior antennee (fig. 3) four jointed, the jomts being 
of nearly equal length. Mandibles (fig. 4) have six long 
sharp teeth at apex. Palp reduced to a small tubercle 
from which spring four spinous sete. Maxillee (fig. 5) 
without palp, having two large teeth at apex and a 
number of lateral small ones. Anterior foot jaw (fig. 6) 
four jointed, with numerous spinous sete, some of them 
plumose. Posterior foot jaw (fig. 7) three jointed, the 
upper one dividing into three branches terminated with 
spinous set. 
First four pair of swimming feet (fig. 8) all three jointed, 
the inner joint of all except the fourth pair having a curved 
spine at the apex. Fifth feet (fig. 9) two jointed, the 
second joint being more than double the size of the first 
and having seven strong sete. Abdomen four jointed, 
the first joint being nearly as long as the second and third 
together. Caudal segment about three times as long as 
broad, each bearing five terminal sete and one short 
lateral seta. 
Two specimens only, both females were dredged in 20 
fathoms about 20 miles out from Southport pier, during 
the ‘‘ Mavis’”’ expedition. 
