305 



the propodal joint about the length of the carpal one, and somewhat dilated 

 in the middle, dactylus comparatively short; the 2 succeeding pairs of the 

 usual structure, and having the dactylus somewhat more elongated. Last 

 pair of pereiopoda about half the length of the body, the 4 outer joints nearly 

 equal in length. Telson comparatively small, but little longer than it is broad, 

 terminal edge obtusely rounded. Colour pale yellowish, without any distinct 

 pigmentary markings; ova in the marsupial pouch dark violet. Length of 

 adult female 7 mm. 



Remarks. This is a rather anomalous species, differing, as it does, very 

 markedly from those previously described, by the short and obtuse rostrum 

 and by the unusually strong structure of the posterior gnathopoda. 



Occurrence. The species is found rather sparingly off the coast of 

 Finmark, thus at Vadso and in the neighbourhood of Tromse, in depths ranging 

 from 10 to 50 fathoms. It also occurs off the Lofoten Isles, and extends 

 southwards to Apelvaer, Namdal. 



Distribution. - Spitsbergen (Goes), Greenland (Hansen). 



13. Monoculodes Kroyeri, Boeck. 



(PI. 108, fig. 2). 

 Monoculodes Kroyeri, Boeck, Crust, amph. bor. & arct. p. 86. 



Body very strongly built, and much tumefied in its anterior part, with 

 the segments very sharply defined. Cephalon about the length of the 3 

 anterior segments of mesosome combined, frontal part horizontally produced, 

 vaulted above at the tip, and exhibiting only a very slight trace of a rostrum, 

 the tip of which reaches but little beyond the middle of the basal joint of 

 the superior antennae, lateral corners of cephalon somewhat produced, though 

 obtuse at the tip. First pair of coxal plates somewhat expanded distally; 3rd 

 pair with the terminal edge slightly insinuated; 4th pair scarcely as deep as 

 the corresponding segment, distal edge strongly curved, infero-posteal corners 

 but little produced. Eyes not very large, rounded, and placed close together 

 at the tip of the frontal part. Superior antennae about the length of the 

 cephalon and the first 3 segments of mesosome combined, 2nd joint of the 

 peduncle fully as long as the 1st, flagellum comparatively short, not attaining 

 half the length of the peduncle, and composed of about 12 articulations. In- 

 ferior antennas considerably longer than the superior, last joint of the peduncle 

 about the length of the penultimate one, but much narrower, flagellum exceeding 

 the length of those joints combined. Anterior gnathopoda of the usual struc- 

 ture, propodos oval in form, and somewhat curved, with the palm about the 



39 Crustacea 



