172 



and the 1st pair of legs: and it ought perhaps more properly to be referred to 

 the genus /'.,-, itlinliti*nn-t(* recently established by Th. Scott. The oral parts. 

 however, which in this genus are said to he built upon the same type as in 

 lhn*ii.n-,is, are quite normal in tlie present species, and the inner ramus of the -1th 

 pair of legs is composed of :! well-defined joints. 



Orrtn-rriirr, Only 2 female speeimens of this form have hitherto come 

 under my notice. They were found in a sample taken at Kopervik, on the west 

 roast ( if Norway. 1 ) 



Amphiaseus phyllopus, G-. 0. Sars, n. sp. 



il'l. CXIII). 



fa- riHii'iirti-r*. fr'iintlt . Body comparatively short and stout, only 

 sliirhtly tapered behind. Cephalic segment rather large, fully as long as the 4 

 succeeding segments combined, and obtusely rounded in front; rostrum prominent, 

 obtusely acuminate at the tip. Urosonie not much shorter than the anterior di- 

 vision, segments sharply defined and coarsely spinulose at the hind edge ventrally 

 and laterally, genital segment large, quadrangular, imperfectly divided in the 

 middle, last segment somewhat shorter than the preceding one. Caudal mini 

 comparatively large, quadrangular in lorm, being nearly as long as they arc 

 broad, middle apical setfe rather elongated and somewhat thickened in their 

 proximal part. Anterior antenna' unusually short. 8-articulate. the first 4 joints 

 jradually diminishing in sixe, terminal part about half the length of the prox- 

 imal. Posterior antenna' with the outer ramus about the length of the terminal 

 joint of the inner, middle joint very small and imperfectly defined, without any 

 seta. M pair of legs rather strongly built, outer ramus much shorter than the 

 1-t joint of the inner, the middle joint being much the largest, with a small seta 

 at the end inside, last joint small, rounded, with 1 strong claw-like -pines and 

 a slender seta on the inner side; outer 2 joints of inner ramus very hort, the 

 last mie armed at the tip with 2 -tronv. claws of unequal length. Natatory legs 

 well developed, with the raiui rather broad and exhibiting the full number of 

 seta'. Last pair of legx very large, foliaceoiis. distal joint of unusual si/e. forming 

 a broadh oval lamella fringed with i> marginal seta) of rather unequal length: 

 inner expansion of proximal joint very broad, but scarcely extending to the middle 

 of the distal joint, marginal setae "> in number, the outermost one very small. 

 the :!rd much hmger than the others. (hisacs of moderate si/.e. 



"l l''"iiinl lliN <umiii'T nitluT :iliimil:mll\ :it I'.'ii^iiinl. -nitli ,-.i;ist ..I' Nur\\;i\. in ;i 

 <|i-|itli >(' nln.ilt -JO f:it IHUIIS. inil'lds 



