266 



projection. Posterior gnatliopoda moderately strong, and of quite usual 

 structure, propodos rather large, oval in form, palm somewhat oblique, 

 scarcely shorter than the hind margin, and defined below by a distinct 

 acnte projection, its edge smooth, and slightly curved. Pereiopoda moderately 

 strong; the 2 anterior pairs liut little unequal; last pair with the basal joint 

 oblong oval, and about the length of the 3 succeeding joints combined, meral 

 joint not ver}' much expanded, and produced a little beyond the middle of 

 the carpal one Last pair of uropoda with the basal joint a little longer 

 than the succeeding one, and armed with 2 comparatively small denticles. 

 Telson scarcely twice as long as it is broad, quite unarmed, and gradually 

 tapering to the obtusely rounded tip. Colour in the living state of the 

 animal not yet stated. Length of adult female 4 mm. 



Remarks. — The very peculiar structure of the anterior gnathopoda 

 will suifice for distinguishing this species from any other of the known 

 forms. Otherwise it does not exhibit any essential difference from the usual 

 type of the genu?. 



Occurrence. — I have only seen a solitary specimen, an ovigerous 

 female, of this interesting form. It was collected, many years ago, at 

 Christiansund, west coast of Norway, from a depth of 60 to 80 fathoms. 

 Out of Norway, it has not yet been recorded. 



22. Metopa Sblsbergi, Schneider. 



(PI. 94, tig. 1). 



Metopa Siilsbetyi, Schneider, 15idrag til Kundskabeu oui Pyvc-livet i de arlitiske Fjorde» 



Troms0 Museum Aarshefter VII, p. 71, I'l. Ill & IV. 



Body somewhat robust of form, and but little compressed, with the 

 integuments ixnusually soft and thin. Cephalon scarcely twice as long as 

 the 1st segment of mesosome, lateral corners obtusely rounded at the tip. 

 Coxal plates of middle size ; 2nd pair gradually tapering to the obtusely 

 rounded tip; 3rd pair about twice as deep as the corresponding segment, and 

 scarcely expanding distally ; 4th pair somewhat larger than the 2 preceding 

 pairs combined, and about as deep as they are broad, distal edge obli(iuely 

 curved. Last pair of epimeral plates of metasome but little produced at 

 the lateral corners, and nearly rectangular. Eyes of moderate size, rounded, 

 pigment yellowish red. Antennae rather slender, the superior ones considerably 

 exceeding in length the third part of the body, 1st joint of the peduncle 

 about the length of the other 2 combined, flagellum half as long again as 



