132 



Occurrence. Only 3 specimens, one female and 2 males, have hitherto 

 come under my notice. They were taken many years ago at Christiansund, from 

 a depth of about 30 fathoms. 



Distribution. Scottish coast (Brady). 



Fam. 20. Candaciidae. 



Characters. Body quite calanoid in appearance. Cephalosome well de- 

 fined from the 1st pedigerous segment, front abruptly deflexed, but without any 

 distinct rostrum or tentacular appendages. Last segment of metasome confluent 

 with the preceding one, and having the lateral parts expanded in both sexes. 

 Urosome consisting in female of 3, in male of 5 segments. Caudal rami com- 

 paratively short, with the full number of setae. Anterior antennae slender and 

 attenuated, with the number of articulations less reduced than in the 2 preceding 

 families; right antenna in male geniculate. Posterior antennae with the inner 

 ramus imperfectly defined from the basal part, outer ramus comparatively small, 

 with the terminal joints very short. Oral parts, especially the maxillae, rather 

 different in their structure from those in other Calanoids. Anterior maxillipeds 

 much larger than the posterior. The 4 anterior pairs of legs with the inner 

 ramus consisting of only 2 joints. Last pair of legs comparatively small and of 

 simple structure, not natatory; those in male rather asymmetrical. No ovisac 

 present in female. 



Remarks. This family was established by Dr. Giesbrecht, to include 

 the genus Candacia of Dana, which differs considerably in some respects from 

 the Calanoids treated of in the preceding pages, and forms, as it were, a trans- 

 ition to the PontellidcK. We do not know at present of more than this one 

 genus; but it is not improbable that in future it will be found convenient to 

 divide it into 2 nearly-allied genera, as at any rate the structure of the last 

 pair of legs in the male presents 2 very different types. 



