551 



and expanded, exceeding in length the carpus, palm angularly produced in 

 the middle, and defined below by a strong acuminate projection. Posterior 

 gnathopoda in male, as usual, larger than in female, and having the carpus 

 and propodos densely clothed with bristles along their upper face. First 

 pair of pereiopoda in male with the carpus densely setous inside Last pair of 

 pereiopoda in both sexes very much elongated, considerably exceeding half the 

 length of the body. Last pair of uropoda with the inner ramus somewhat 

 larger than the outer. Telson of the usual shape. Body uniformly yellowish 

 in colour, without any pigmentary ornament. Length of adult male 8 mm. 



Remarks. The present species was detected, a single male 



specimen, during the Norwegian North Atlantic Expedition, and is described 

 and figured by the author in the account of the Crustacea of that Expedition. 

 It is easily distinguished from any of the other known species by the want 

 of true eyes, as also by the shape of the gnathopoda, and by the 1st pair 

 of pereiopoda in the male being provided with a dense clothing of bristles 

 similar to that on the posterior gnathopoda. 



Occurrence. In later years I have met with this form in 



several localities of the Norwegian coast, from the Stavangerfjord up to 

 Hasvig in west Finmark. It is only found in considerable depths, varying 

 from 50 to 300 fathoms. 



Distribution. Stat. 195 of the Norwegian North Atlantic Expedition, 

 located N W of Finmark. 



Gen. 4. Protomedeia, Krayer, 1842. 



Syn: Autonoe, Bruzelius (part). 



Microdeutopus, Sp. Bate (part). 



Body comparatively slender, with the coxal plates rather small, 4th 

 pair not differing in shape from the preceding pair ; 5th pair with the anterior 

 lobe rather deep, especially in the male. Cephalon rather small, with the 

 frontal part somewhat produced. Eyes small, but distinct. Superior antennae 

 longer than the inferior, and provided with a well-developed accessory 

 appendage. Oral parts normal, except that the terminal joint of the 

 mandibular palp is densely setous, and that the palp of the 1st pair ol 

 maxillse is transversely truncated at the tip. Gnathopoda in female rather 

 slender and densely setous, the posterior ones being somewhat larger than 



