168 



lt'< ///"//,>. --This form was first detected by Canon A. M. Norman, and 

 \\as subsequently tl. -si T\ bed and figured by I'mf. lirady in his well-known Mono- 

 graph under tin.- name originally propoM d by Norman. It is a very distinct and 

 asily recogni/.able species, being especially distinguishable by the slender cylin- 

 drical form of the body, the highly chitiniscd integuments, and the unusual pro- 

 duction of the caudal rami. It is also of rather large si/.e as compared with 

 the other species of this genus. 



Occurrence.] have found this form not (infrequently at Aalesund and 

 < 'hristiansund. on the west coasl of Norway, in moderate depths among alga.-. It 

 also occurs oil the Finmark coast, several specimens ha\ing been taken many 

 years ago at Vadso. 



Distribution. British Isles (Brady). 



lO.s. Amphiascus affinis, <T. o. Sars, n. sp. 



(PJ. (IX). 



>/r///V Characters. Female. General form of body similar to that of 

 . 1. ln.<i>nl,is. being rather slender, subcylindrieal. Kostrum of moderate si/e and 

 blunted at the tip. Caudal rami short, being considerably broader than they are 

 long, the '2 middle apical seta 1 remarkably strong, dark-coloured and considerably 

 thickened at the base. Anterior and posterior antennsc of much the same struc- 

 ture a- in .1. h't^ji'tilii.--. 1st pair of legs likewise of a very similar appearance, 

 though having the outer 2 joints of the inner ramus shorter and nearly equal 

 in si/e. Natatory legs exhibiting a reduction in the number of the seta? similar 

 to that found in the above species. Last pair of legs with the inner expansion 

 of the proximal joint comparatively shorter than in .1. ///>-ym//'N. extending <>nl\ 

 -lightly he\ond the middle of the distal joint, which latter exhibits a rounded 

 form very similar to that in the above-named species. ()\i>acs somewhat more 

 divergent. 



Colour not yet a-cci taincd. 



Length of adult female 0.82 mm. 



/.' //"'//>. -This fin-Hi closely resembles . |. lii^/iiilns. both as regards general 

 appearance and structural details. It is however of rather inferior si/e. and is 

 moivmer easily distinguished by the form of' the rostrum and the much shorter 

 caudal rami. 



Occurrence. Some lew specimens of this form, all of the female B6X, 

 were collected from -amples taken during the summer of 1 '.MI.') at K'isor and Lille- 

 sand, on the south coast of Norway. 



