22 CRUSTACEA MALACOSTRACA. II. 



joint and the claw about equal in length and together conspicuously more than half as long as the 

 sixth joint Seventh pair of legs (fig. 51) with the second joint proportionately somewhat slender, 

 four times as long as broad. 



Abdomen scarcely or slightly broader than the thorax. -*- Uropods a little more than half as 

 long as the abdomen; the endopod five-jointed (fig. 5g), but sometimes the first joint is divided again 

 into two joints by a less conspicuous suture, and the relative length of the joints shows considerable 

 variation; exopod as long as or longer than the first joint of the endopod, two-jointed. 



Length of a female with marsupium 2.9 mm . 



Remarks. In the above-named paper I had referred specimens of this species to Hcterotanais 

 (Paratanais) limicola Harger, though, as may be seen in the paper, I was well aware that Harger's 

 description of the eyes did not agree with my specimens. Harger said that "the eyes are small and 

 inconspicuous", while in the specimens seen by me the eyes are of considerable size, black and 

 consequently very conspicuous, and having examined a large number of species of this family I am 

 now inclined to think that the difference mentioned is a specific character. Harger's figures of his 

 H. limicola, especially that of the cheliped, are too small for forming a judgement of some particulars. 

 - H. groenlandicus differs in several important features from H. Oerstedii Kr., in which the eye-lobes 

 are subacute, the third antennular joint not much longer than the second, the carpus and the chela 

 of the chelipeds considerably thicker and the endopod of the uropods only four-jointed. 



Occurrence. The "Ingolf" gathered this species at a single locality. 



West coast of Greenland: Mouth of Ameralik Fjord, Godthaab (about at Lat. 64 1 1' N.), 5 yofni., 



shells; 25 spec. 



The Copenhagen Museum possesses specimens from a few places in West Greenland, viz. 

 Proven (Lat. 72 23' N., Long. 55 23' W.), i spec.; Jakobshavn (Lat. 69 13' N., Long. 51 o' W.), i spec, 

 (brought home by Mag. Traustedt); Godthaab, 10 spec, found between numerous specimens of the 

 genus Metopa dredged in "deep water" (probably 4060 fm.) where the bottom was clothed with 

 Sertularia. 



Distribution. Apart from West Greenland this species has not yet been recorded. 



TanaJS H. Milne-Edw. 



Of this genus seventeen species have been established, but only a single form is known from 

 our northern area. 



13. Tanais Cavolinii H. Milne-Edw. 

 1829. Tanais Cavolinii H. Milne-Edwards, in Audouin and Milne-Edwards: Precis d'Entomologie, I, 



PI. XXIX, fig. i (Quoted from Miss Harr. Richardson). 

 ! 1842. Tanais tomentosus Kroyer, Nat. Tidsskr. B. IV, p. 183. 



? Kroyer, Voy. en Scrfnd. Crust, PI 27, fig. 2 a q. 



1847. Kroyer, Nat. Tidsskr. Ny R., B. II, p. 412. 



11896. G. O. Sars, Account Crust. Norway, Vol.11, p. 12, PI. V. 



