352 



Length of adult female 1.4n mm., of male 1.20 mm. 



/A//"///,*. The above-described species is unquestionably that originally 

 recorded in Prof. Bradv's Monograph under the name of ( : n-nnni Hnnlt//. Nor- 

 man, and is specifically distinct from the form described under that name on 

 page L'II of the present work. For the latter 1 propose the name of ( '. xt/HnrHim. 

 owing to the peculiar fusion of the outer 2 joints of the inner ramus in the 3 

 posterior pairs of natatory legs. In the present species this ramus is distinctly 

 .'{-articulate, as indicated in the figures given by I Vol. Brady. The male is very 

 remarkable for its prominent external dissimilarity from the female, and also for 

 the peculiar structure of the anterior anteniue and the very large rostral projection. 



(h-riin-rnt-i-. l have met with this species in 2 different places, viz., at 

 Bukken, S W coast of Norway, and in the Lyngdal Fjord near Farsund. In 

 both places it occurred on a muddy bottom in depths ranging from 30 to 60 

 fathoms, and in company with the other species, which in both localities was much 

 the commoner. The specimens of the present species, though very much resembling 

 the other in shape, could, when in a fresh state, at once be distinguished by the very 

 different colour. In ( 1 . *i/n<irtlii-n the colour is a uniform whitish grey, whereas 

 in the present species the body exhibits a distinct yellowish hue, being moreover 

 variegated with orange and brimstone-yellow. Only 2 male specimens have come 

 under my notice. They both agree fairly well with the solitary specimen described 

 by Dr. Giesbrecht from the Gulf of Naples. According to Dr. Th. Scott, this 

 species also occurs off the Finmark coast. 



Page 25. 



Eucanuella spinifera, Scott. 



(Suppl. PI. 2, fig. 1). 



Mli. -Body considerably more slender than in female, with the cephalic 

 segment more regularly contracted in front. TCpimeral plates of 2nd segment 

 each produced behind to a rather long mucroniform projection, those of 3rd 

 inent only slightly produced; those of 4th segment about as in female. Uro- 

 some (including the caudal rami) fully as long as the anterior division, genital 

 segment, as in female, armed on each side with a recurved spiniform projection. 

 Caudal rami \<-r\ narrow and much more prolonged than in female, being also 

 more conspicuously asymmetrical, right ramus projecting considerably beyond the 

 left, and aboul half the length of the urosome, apical seta' very slender. Anterior 

 antenna' much larger than in female and distinctly prehensile, being composed of 

 8 well-defined joints. 4th. Mb and ;th joints forming together a dilated section, 

 which contains a strong muscle acting upon the succeeding part, this last oc- 



