207 

 6. Andania abyssi, Boeck. 



(PI. 71 fig. 2, PI. 72, fig. 1). 

 Andama abyssi, Boeck Crust, amphip. bor. & nrctica, p. 49. 



Body short and tumid, with the back boldly curved in front. Cephalon 

 rather deep, lateral corners forming evenly rounded lobes projecting between 

 the 2 pairs of antennae. First segment of mesosome nearly as long as the 

 2 succeeding ones combined. First pair of coxal plates triangular in form, 

 scarcely deeper than they are broad at the base, and much lower than the 

 corresponding segment; the 2 succeeding pairs rapidly increasing in depth and 

 very obliquely truncated at the tip; 4th pair obliquely quadrangular, deeper 

 than they are broad, posterior expansion rather short, and obtusely rounded 

 at the tip. Last pair of epimeral plates of metasome somewhat produced at 

 the lateral corners, but without any teeth or serrations. Eyes very conspi- 

 cuous, consisting, on each side, of an irregularly quadrangular patch of a 

 milky white pigment. Superior antennae with the 1st joint of the peduncle 

 rather large, somewhat flattened, and nearly twice as long as the other 2 

 combined, flagellum fully twice the length of the peduncle, strongly atte- 

 nuated, and composed of 5 articulations, the 1st of which about equals in 

 length the 2 succeeding ones combined, terminal joint very narrow, spini- 

 form; accessory appendage linear, fully as long as the 1st joint of the 

 flagellum. Inferior antennae scarcely longer than the superior, but consider- 

 ably more slender, last joint of the peduncle much longer than the penulti- 

 mate one Anterior gnathopoda with the propodos oblong oval, and about 

 the length of the 2 preceding joints combined. Posterior gnathopoda much 

 more elongated than the anterior, propodos narrow linear and considerably 

 longer than the 2 preceding joints combined, inferior edge provided with 

 numerous fascicles of short setse. Penultimate pair of pereiopoda with the 

 basal joint oblong oval, evenly rounded at the infero-posterior corner, propodal 

 joint very slender, about the length of the 2 preceding joints combined. 

 Last pair of pereiopoda with the basal joint very large, much longer than 

 the remaining part of the leg, oval in form, with the posterior edge eventy 

 curved and distinctly serrated throughout, deflexed lobe rather short and 

 narrowly rounded at the tip ; nieral joint scarcely larger than the carpal one. 

 Last pair of uropoda with the rami shorter than the basal part, terminal 

 joint of the outer ramus comparatively short, Telson very small, triangular, 

 about as long as it is broad at the base, tip pointed, entire. Colour a more 

 or less dark brownish grey, with slight transverse bands of a darker hue, 

 composed of numerous small pigmentary spots, partly of a dark greenish 

 colour. Length of adult female 7 mm. 



Remarks. This is the form, which Boeck regards as the type of 



