216 



basal joint slightly transformed, being somewhat thickened in its outer part, 

 with the tip obtusely pointed. Last pair of legs very small, with the distal joint 

 quite short and the inner expansion of the proximal joint only provided with 3 

 small setae. 



Body semipellucid, with a slight reddish tinge. 



Length of adult female 0.75 mm. 



Remarks. This is the form originally recorded by Boeck as the type of 

 the genus Ameira. It is the largest of the Norwegian species and moreover 

 recognizable by the comparatively less elongated anterior antennae and by the 

 structure of the 1st and last pairs of legs. As mentioned above, the form re- 

 corded by Prof. Brady in his well-known Monograph under this name, is quite 

 certainly not Boeck's species, and even belong to a different genus, to be treated 

 off farther on. 



Occurrence. I have met with this form occasionally off the west coast of 

 Norway, at Haugesund and Kopervik, in moderate depths among algae. It also 

 occurs off the Finmark coast, several specimens being found in a sample taken 

 by Mr. Nordgaard at Repvaag, Porsangerfjord, and kindly sent to me for 

 examination. 



Distribution. Franz-Joseph Land (Scott), Novaja Zemlia (Scott), Polar 

 Islands north of Elsemer Land (2nd Fram Expedition). 



137. Ameira minuta, Boeck. 



(PI. CXLI). 

 Ameira minuta, Boeck, ]. c. p. 273. 



Syn: Ameira ambigua, Scott. 



Specific Characters. Female. Body very slender, sublinear in form, with 

 the anterior division scarcely at all dilated. Last caudal segment shorter than 

 the preceding one. Caudal rami about as in the preceding species, but with the 

 apical setae comparatively longer. Anterior antennae rather slender and elongated, 

 exceeding in length the cephalic segment, the first 2 joints much larger than the 

 others. Mandibular palp with 3 setae inside the basal joint, the middle one the 

 longest. 1st pair of legs with the outer ramus somewhat exceeding half the length 

 of the inner, the last 2 joint of the latter short, subequal, and combined scarcely 

 attaining 1 / 3 of the length of the 1st. Natatory legs almost exactly as in A. lon- 

 gipes. Last pair x>f legs with the distal joint of regular oval form, inner expansion 



