118 NOTES OX THE COPErODA OF THE 



11. Candacia rotunda (nov. sp.). This is distinguished from all other 

 Candacc species by the fact that the last thoracic segment is rounded 

 on each side instead of being produced into points ; the proximal part 

 of the anterior antenna3 is of seven joints, the last joint (twenty-fourth) 

 nearly as long as the two preceding joints; the two middle hooks of 

 the anterior foot-jaw of the same length, but shorter than the two end 

 claw bristles. The maxilla, with the second inner lobe, second basal, 

 and endopodite, of about equal length ; the third feet with the last 

 exopodite segment denticulated and short end spine slightly bent ; 

 fifth feet of three joints, terminal the longest, with three outer short 

 marginal spines, and one inner apical spine long. (PL IX., figs. 10, 11.) 



Size of female, 3'2 mm. This is a deep-water species, taken in 300 

 fathoms in the North Atlantic. 



12. Spinocalanus magnus {nov. sp.). Head partially separate from the 

 first segment ; genital segment as large as the next two ; f ureal segments 

 a little longer than the anal ; last thoracic segment produced on each 

 side; exopodite of first feet with four inner marginal bristles on the 

 last segment ; exopodites of second to fourth pairs with five bristles on 

 the last segment ; no fifth feet; joints of the feet very spinulose; anterior 

 antennae of twenty-four segments, the eighth and ninth fused, the 

 twenty-fourth separate from the twenty-fifth. The characters of the 

 feet clearly distinguish this species as a Sjnnocala^ms, of which it is 

 the largest known species, attaining a size of 275 mm. in the $ . It 

 was very common in deep water in the Atlantic off the west coast 

 of Ireland. 



13. Xanthocalanus suhagilis {nov. sp.). Several examples of a 

 Xanthocalanus, taken off the Mull of GalloWay by scraping the sandy 

 bottom, resembled X. agilis very closely, but the fifth feet of the 



? differed in length and proportions of the segments and of the three 

 terminal spines from Giesbrecht's species, and the S possessed a pair 

 of fifth feet instead of only one as in the Mediterranean species. The 

 right foot of four segments is only a little longer than the left of five 

 segments and a terminal stylet process. The exopodite of the female 

 maxilla has only nine bristles ; the endopodite of the anterior foot-jaw 

 has six or seven brush sensory processes and two vermiform processes. 

 A brush process also exists on the first basal of the posterior foot-jaw. 

 The fifth foot of the female has the basal joint the longest and broadest, 

 the margin beset with strong teeth, the second joint with a bunch of 

 hairs at the distal margin, the last joint spinulose on the surface, longer 

 than broad, and the inner marginal spine the largest of the three. 



? 2-6 mm., <? 2-3 mm. The abdomen is not at all setose, as in 

 Giesbrecht's species. (PI. IX., figs. 17, 32.) 



