274 



nearly naked, basal joint of penultimate pair not at all expanded, that of last 

 pair but very little so, and of equal breadth throughout, meral joint in both 

 pairs somewhat produced at the posterior corner. Last pair of uropoda 

 rather strong, basal joint but little longer than the 2nd, and armed with 2 

 strong denticles. Telson oblong oval, about twice as long as it is broad, and 

 armed with 2 pairs of dorsal denticles, tip obtusely pointed. Colour in the 

 living state of the animal not yet stated. Length of adult female scarcely 

 exceeding 3 mm, that of male about the same. 



Remarks. As pointed out by Dr. Hansen, Boeck confounded, under 

 the above name, 2 distinct species. Only the male specimen delineated on 

 plate XVII, fig. 6, in his great work, belongs to the present species, whereas 

 the female specimen represented in fig. 5 on the same plate must be referred 

 to the succeeding species, for which Dr. Hansen has proposed the name of 

 M. neglecta. Perhaps also the specific name longiimnnt. proposed by Boeck. 

 should properly be changed, since the same appellation has been applied by 

 Sp. Bate at an earlier date to another form from the coast of Piedmont 

 (Montagua longimana). Though somewhat reminding of M. -pollcxiana in 

 the elongated form of the propodos of the posterior gnathopoda, the present 

 species is very distinct from any of those described in the preceding pages, 

 belonging, as it does, together with the 2 succeeding species to a quite par- 

 ticular section of the genus Metopa, which perhaps, on account of the poor 

 development of the basal joint of the 2 posterior pairs of pereiopoda, should 

 more properly be regarded as a distinct genus, for which the name Metnpdla 

 would be an appropriate one. 



Occurrence. - - I have not myself met with this form, but Boeck states 

 ts occurrence in the Christian! afjord and at Haugesund. The figures here 

 given are from Greenlandic specimens kindly sent me by Dr. Hansen. 



Distribution. Greenland (Hansen). 



28. Metopa neglecta, Hansen. 



(PI. 97, iig. 2). 



Metopa ncijlcda, Hansen, Malacostraca marina Gr0ulanclise occidentalis, p. 9G, 



PL Ill, tig. 9. 



Syn. Metopa lougimaua, Boeck (part). 



Body much less strongly built than in M. longimana, and rather compres- 

 sed, with thin and pellucid integuments. Cephalon rather short, with the late- 

 ral corners less produced and nearly rectangular. Coxal plates rather large, 2nd 



