270 TAGK SKOdSliKKU 



First antenna: — The bristles of the third, i'durth and sixth joints and the 

 a-bristle of the seventh joint have about the same position and tlie same rehitive lengths as in 

 ('. (V.) norvegica. The posterior bristle of the fourth joint is sonievvhat shorter relatively. All 

 these bristles have short hairs or are almost naked. The sensory bristle of the fifth joint is of 

 about the same length as the second to the fourth joints (counting on the posterior side) or 

 somewhat longer. Of its thirteen sensory filaments — all entirely without secondary spines — 

 the nine proximal ones are separated from the distal ones by a rather wide gap and, compared 

 to the latter, they are relatively thick and long (attaining about a third to a half of the whole 

 length of the bristle); the three following ones are only about a fifth of the length of the bristle, 

 the distal one is still shoitei'. Of the bristles on the seventh and eighth joints the c-, f- and 

 g-bristles are rather long, the c-bristle attaining about the same length as the seven distal joints, 

 the f-bristle is somewhat longer, the g-bristle is about as long as the whole antenna. The 

 b-bristle is about as long as the total length of the fourth and fifth joints and has five sensory 

 filaments, each with one or two secondary spines. The c-bristle has ten sensory filaments each 

 furnished with from none to two (most of the distal ones with none) secontlary spines. The 

 f-bristle similarlv has ten sensory filaments, each with from none to five secondary spines. 

 The g-bristle has eleven sensory filaments, each having similarly from none to five secondary 

 spines. The secondary spines on all the distal bristles are rather strong. The simjjle sensory 

 bristles d and e are about as long as the four- distal joints. Pilosity: The second joint has anter- 

 iorly and posteriorlv a few almost invisible transverse I'ows of short, tine hairs; apart from 

 these this antenna is smooth. 



8 e c o n d a n t e n n a: — P r o t o p o d i t e: Length about (t.9 mm. The medial- 

 distal bristle is of moderate length, not ([uite so long as the longest of the four 

 proximal bristles of the first endopodite joint, bare or almost so (hg. 12). Exopodite: 

 The fii'st joint is about as long as the total length of all the following joints, the 

 second joint about as long as the total length of the two following ones, the 

 remaining ones are subequal. The bristle of tlie second joint is about as long as the 

 total length of the six following joints, and is furnished ventrally with numerous moderately 

 strong spines, arranged in two rows. The proportion between the length of the long natatory 

 bi'istles and the total length of the exopodite is about three to two. These bristles are equipped 

 witli broad natatory hairs. The end joint has four bristles, of which the dorsal one 

 is about as long as the total length of the five distal joints; like the others, it is furnished witli 

 long natatory hairs situated rather close together. The third to tlie iiintli jt)ints have 

 powerful, r.ither long and conical basal spines, perhaps even a little longer relatively than 

 those in ( '. (V.) tiorvegica; they decrease in strength and length the more proximallv they are 

 situated, the one on the third joint being of rather moderate proportions. .\t the base of the 

 liristh' on the st'cond joint there are no spines at all. K n d o p o d i t e: This is verv short, two- 

 jointcd oi- with a very faint indication of being three-jointed. The first joint has a grou)) of 

 four bristles pi'oximally. one of which is rather h)ng, consideraiily longer tlian the wliole endo- 

 ])odite. the three otliers nnt half as long as this bristle; thev are bare or almost so. In addition 

 there is presumal)ly to be found a single bristle situated moi-e distalh' on this joint, attaining 



