10 



parts well developed and on the whole built on the same type as in the Calanoida. 

 Natatory legs comparatively short and stout, with both rami 3 -articulate and 

 subequal in length. Last pair of legs generally extended laterally and composed 

 of 1 3 joints. 



Remarks. The type of this family is the genus Cyclopina of Glaus, which 

 has generally been considered as closely allied to Cyclops, but which in reality 

 differs very essentially in the structure of the oral parts, which much more 

 resembles that found in the Calanoida. 4 different genera referable to this 

 family will be described in the sequel. 



Gen. 2. CyClOplna, Glaus 1863. 



Generic Characters. General form of body much resembling that in 

 the genus Cyclops. Anterior antennae more or less elongated and composed 

 of a somewhat varying number of articulations; posterior antennae distinctly 4- 

 articulate. Mandibles with the cutting edge divided into a number of sharp claw- 

 like denticles, palp comparatively large, biramous, inner ramus well developed, 

 biarticulate, outer generally multiarticulate. Maxillae with the masticatory lobe 

 well defined and armed with several claw-like spines, palp lamellar, with both 

 outer appendages sharply defined and carrying long plumose setae. Anterior 

 maxillipeds rather stout, with the 2nd basal joint clawed, and the terminal part 

 well developed, consisting of 3 joints. Posterior maxillipeds more slender, with 

 the terminal part generally divided into 3 or 4 setiferous joints. Natatory legs 

 of normal structure. Last pair of legs extended laterally, and composed of 2 or 

 3 joints, none of which are lamellar. 



Remarks. This genus was established in the year 1863 by Glaus, to 

 include a species, C. gracilis, found by him at Messina. The genus is chiefly 

 characterised by the Cyclops-like form of the body, and by the very full devel- 

 opment of the mandibular and maxillary palps, which strongly recalls that 

 in the Calanoida. Several species have been recorded by different authors; but 

 some of these have turned out to be referable to other genera, not even belonging 

 to the present family. In the succeeding pages 4 different species of this genus, 

 belonging to the fauna of Norway, will be described, and I am much disposed to 

 believe that their number will be considerably increased by a closer study of our 

 Copepod-fauna. For instance, many years ago, off the Lofoten islands, I observed 

 2 peculiar forms, the one distinguished by the excessive prolongation of the 



