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Page 299 Add another species : — . 



Monoculodes Schneider!. G. 0. Sars, n. sp. 



(Suppl. PL VI, fig. 1). 



Body rather slender and scarcely carinated, though the §egments of 

 niL'tasome are, as usiaal, sharply defined above. Cephalon exceeding in length 

 the first 3 segments of mesome combined, frontal part rather pt'oduced 'and 

 strongly convex anteriorly, rostrum very short and almost perpendicularly 

 deflexed, its tip sharply pointed, lateral corners of cephalon rectangular. Coxal 

 plates comparatively small; 1st pair but little expanded distally; 4th pair 

 deeper than the others, with the distal edge evenly curved, and the infero- 

 posteal corner considerably produced. Eye very large and protuberant, 

 placed just vpithin the convex anterior part of the front, visual elements very 

 distinct, pigment red. Superior antennae reaching about to the end of the 

 peduncle of the inferior, 1st joint of the peduncle a little longer than the 2nd, 

 flagelluni shorter than the peduncle, and composed of about 8 articulations. 

 Inferior antennfe (in female) with the last 2 joints of the peduncle of about 

 equal length, flagellum nearly attaining the length of the peduncle. Anterior 

 gnathopoda of moderate size, with the propodos oblong oval in form, being 

 about twice as long as it it is broad, palm not distinctl}-- defined, carpal lobe 

 rather broad and extending about to the palm of the propodos Posterior 

 gnathopoda not very slender, propodos scarcely 3 times as long as it is broad, 

 carpal lobe rather narrow, and extending to the palm of the propodos. The 

 2 anterior pairs of pereiopoda moderately stout, with the carpal joint not 

 much expanded, propodal joint about same length, dactylus nearly as long as 

 the latter. The 2 succeeding pairs of the usual structure. Last pair of pereio- 

 poda very much elongated, attaining ^/i of the length of the body, basal joint 

 exceedingly broad and of an irregularly rounded form, propodal joint very slender, 

 exceeding in length the carpal one. Telson quadrangular in form, with the 

 terminal edge very slightly insinuated. Body variegated with a dark brownish 

 pigment, forming alternating irregular patches. Length of adult female 6 mm. 



BemarLs. — The present new^ species is somewhat intermediate in 

 character between M. tesseV.atus and horealif, 3'et evidently distinct from either 

 of them. It may best be recognized by the peculiar form of the frontal part 

 of the cephalon, and the large and protuberant eye. 



Occurrence. — A few specimens of this form were sent me for examina- 

 tion by Mr. Schneider. They vere collected at Kirknes, in the neighbourhood 

 of Tromso, in 7 — 10 fathoms. I have much pleasure in dedicating this fine 

 species to its discoverer, the diligent Norwegian naturalist, to whom we owe, 

 as is well known, a very interesting accoi;nt of the arctic (Ediceridse. 



