256 



exhibits r. very close agreement. The most prominent character of this species is 

 undoubtedly the peculiar transformation of the 4th pair of legs in the male. 

 Moreover the shape of the last pair of legs in the female is rather characteristic. 



Oi'i-iirrriic*'. A few specimens of this form were taken, some years ago, 

 from a tidal pool at Haugesund, west coast of Norwa\ . 



Distribution. Scottish coast (Scott). 



* 



167. Laophonte brevirostris (Claus). 



(I'l. CIAXVI). 

 ('Ma lin-ri. v..s// TV, Claus, Ii.' tV'-ilebemlen Copepoden, p. 124. 



Syn : La<>i>linnt,' l[ir<Imani, Scott. 



S/Hi-ific ('lun-ttrtrr*. /^nuilr. Body moderately slender and gradually 

 tapering behind, with the segments well marked off from each other. Cephalic 

 segment rather large, about the length of the 4 succeeding segments combined. 

 rostral projection very short and slightly bilobular at the tip. Urosome shorter 

 than the anterior division, and having the anterior segments somewhat expanded 

 laterally. Caudal rami comparatively short, not attaining the length of the anal 

 segment, and transversely truncated at the tip, apical setae rather slender. An- 

 terior antenna 1 much shorter than the cephalic segment, and only composed of 

 6 articulations, the last 2 being confluent; 2nd joint somewhat dilated and ex- 

 hibiting a short nodiform projection of the hind edge in the middle. Posterior 

 antenna,- with the outer ramus normally developed. 1st pair of legs moderately 

 strong, with the inner ramus rather elongated, outer ramus distinctly 3-articulate, 

 but comparatively small, not attaining half the length of the proximal joint of the 

 inner. Natatory legs well developed, with the normal number of seta?. Last pair 

 of legs with the distal joint comparatively short and broad, spatulate in form, 

 marginal setae somewhat unequal and 5 in number, all issuing from the almost 

 transversely truncated end of the joint; inner expansion of proximal joint obli- 

 quely truncated and extending almost to the end of the distal joint, marginal setae 

 4 in number, the outermost but one much longer than the others. 



Mali- with the 2nd pair of legs resembling in structure those in female, 

 e\eept that one of the setae attached inside the distal joint of the inner ramus 

 appears somewhat coarser. with the proximal part thickened and densely clothed 

 with small spinules. 3rd pair of legs with the outer ramus somewhat more strongly 

 built than in female, the terminal joint being more or less incurved and having 

 the seta' ol the inner ed^e s|>inif<>nii ; inner ramus transformed in the usual man- 

 ner. 4th pair of legs of exactly same structure as in the female. Last pair of 



