79 



as broad. Last jjair of epimeral plates of metasome rectangular, posterior 

 edge straight. First segment of urosome exhibiting, as in T. Horringii, a rather 

 liigli and compressed dorsal projection, tlie tip of which, however, is distinctly 

 biangular. Eyes very large, nearly occupying the entire height of the cepha- 

 lon, narrow oblong in form, pigment light red. Superior antennae very slender, 

 with the peduncle narrower than usual; flagellum nearly twice its length' 

 setous on the lower edge and 14-articulate, 1st joint scarcely as long as the 

 3 succeeding ones combined; accessory appendage about equalling '/s of the 

 length of the flagellum and composed of 5 articulations, the first of which 

 hardly exceeds in length the 2nd. Inferior antennae in female a little longer 

 than the superior, flagellum 15-articulate. Epistomal plate considei-aldy pro- 

 jecting and (juite evenl}' rounded in front. Anterior gnathopoda of the usual 

 slender form, propodos scarcely as long as the carpus, j)almar edge oblique, 

 dactylus with a conspicuous secondary denticle. Posterior gnathopoda with 

 tlie propodos about as Ijroad as the car])us. Pereiopoda rather slender, basal 

 joint of last pair large, oval in form. Last pair of ui'opoda with the inner 

 ramus scarcely longer than the basal joint of the outer and provided on the 

 inner edge with a single denticle. Telson ol)long oval, gradually tapering 

 distall\', with 3 or 4 ])airs of dorsal denticles, cleft very narrow, fissure-like, 

 and extending considerably beyond the middle. Colour pale reddish. Length 

 of adult female 7 mm. 



RemarJiit. Though in some ])oints closely agreeing witli T. Horyiiir/ii, 

 this pretty species is at once distinguished botli from that species aiul from 

 T. nana by the peculiar angiilated form of the lateral corners of the ee])luil(in, 

 as also by several other characters named in the aljOA'e diagnosis. 



Occurrence. — The range of this species would seem to lie more nortli- 

 ern than tliat of the 2 preceding ones. I have found it rather sparingly in a 

 few places off the coast of Nordland and Finmai'k and quite recently more 

 ]ilentifullv in the Trondhjemsfjoi'd. It is a true deep water s|iecies, only oc- 

 ciuriiig in deptlis varying from 100 to loO fathoms. 



32. Tryphosa nanoides, (Lilljeborg). 



(PI. 28, fig 2,; 

 Anonyx nanoides, Lilljeborg, On the Lysianassa magellanica etc., p. 26, PI. Ill, tig. 32—34. 



Body rather slender and highly compressed. Ccjihalon scarcely longer 

 tlian the 1st segment of mesosome, lateral corners but slightly projecting and 

 roiuuled at the tip. Anterior coxal plates fully twice as deep as the body ; 

 1st pair with the anterior edge straight, 4th pair considerably expanded be- 



