the Copepod Family Ascomyzontide. 185 
longer than outer, with one seta. Outer margin of outer 
branches of swimming-feet not denticulate *. 
Distr, Christineborg ; Hebrides? ; British seas?; Wime- 
reux ? P 
24, Dyspontius Thorellit, sp. n. 
Length of 2 1:15-1:2, of g¢ 0°85-0°95 millim. Cephalo- 
thorax and furca longer than broad. Anterior antenne of 2 
10-, of g 11-jointed ; first and third joints long, second joint 
short; third joint of antennae of g followed by four short 
joints and a longer -joint, which bears at the anterior margin 
a movable spine. ‘lube of siphon reaches between first and 
third foot. Inner lobe of maxilla nearly twice as long as 
outer, with short seta at apex. First foot: first joint of outer 
branch with one, last joint with four, second joint of inner 
branch with one plumose seta; second joint of inner branch 
of first to third feet with a double tooth at outer margin ; outer 
margin of outer branch of second to fourth feet denticulate. 
Distr. Naples. 
25. Dyspontius tenuis, sp. n. 
2. Length 1:1 millim. Cephalothorax and furea longer 
than broad. Anterior antenne 9-jointed; first and third 
joints long, second joint short. Siphon as in Thorellit. 
Inner lobe of maxilla about 14 times as long as outer, with 
short seta. Swimming-feet as in Thorellit. 
¢ unknown. 
Distr. Naples. 
26. Dyspontius capitalis, sp. n. 
Length of 2 1:35-1:45, of g 1:1-1:2 millim. Cephalo- 
thorax broader than long, furca scarcely longer than broad. 
Anterior antenne similar to those of Thorellit. Tube of siphon 
does not reach to the first foot. Inner lobe of maxilla nearly 
twice as long as outer, with long plumose seta at apex. 
Swimming-feet as in Thorellit. 
Distr. Naples. 
* According to Thorell. Brady differs from the author of the species 
in several respects: length of body (1'8 millim.), of siphon (reaches to the 
posterior margin of the cephalothorax), proportional length of the furca 
(as long as last abdominal segment), &c. Neither do the descriptions 
of the male of striatus given by Brady and Canu agree; the clasping- 
antenne of Brady’s specimen resemble those of drevfurcatus, the an- 
tenn of Canu’s those of Thorellit, 
