252 



somewhat produced tip. 4th pair of legs of exactly same structure as in the 

 female. Last pair of legs very much reduced, distal .joint obsolete, and replaced 

 by 3 hair-like setae. 



Colour light yellowish. 



Length of adult female 0.88 mm., of male 0.77 mm. 



Remarks. This is in my opinion the form originally recorded by Baird 

 as Canthocamptus Stromii. Prof. Lilljeborg described under this name a very 

 different form, which subsequently was named by Boeck Mesochra Lilljeborgi, and 

 Prof. Glaus identified Baird's species with another Harpacticoid belonging to the 

 genus Dactylopusia. Though the identification of Glaus has been admitted by all 

 subsequent authors, I have felt justified to reject also this identification as er- 

 roneous, and have accordingly recorded Claus's species under a new name, viz., 

 Dactylopusia vulgaris. Indeed, the figures given by Baird clearly show his species 

 to belong neither to the genus Mesochra nor to Dactylopusia, but quite certainly 

 to the genus Laophonte, and, as the present form is one of the commoner littoral 

 species and on the whole agrees in its general appearance pretty well with Baird's 

 figure, it is very likely to believe it to be the true Bairdian species. 



Occurrence. Off the west coast of Norway this form occurs rather abun- 

 dantly in the littoral region among algae, as also occasionally in tidal pools. On 

 the other hand, I have not met with it off the south coast or in the Christiania 

 Fjord, where it is replaced by 2 nearly-allied species, to be described below. 



Distribution. British Isles (Baird, Brady), Franz Josef Land (Scott). 



164. Laophonte curticauda, Boeck. 



(PL CLXXIII). 



Laophonte curticauda, Boeck, Oversigt over de ved Norges Kyster iagttagne Copepoder. Chr. 

 Vid. Selsk. Forhandl. 1864, p. 278 (not Brady). 



Specific Characters. Female. Very like the preceding species as to its 

 external appearance, but of smaller size and somewhat less slender form of body. 

 Rostral projection, as in the said species, very short and obtuse at the tip. Caudal 

 rami of a similar form to those in L. Strbmi, but densely cowered with small ad- 

 pressed spikes, apical setae long and slender. Anterior antennae comparatively less 

 elongated than in that species, 7-articulate. Posterior antennae with the outer" 

 ramus well developed and of quite normal appearance, carrying 4 distinctly cili- 

 ated setae. 1st pair of legs of moderate size and resembling in structure those 

 in L. Strb'mi. Natatory legs likewise of a very similar structure, except that the 



