studies on ni.iriiie Oslr-aiods 270 



The fur c a, u p p (m- lip, r o d - s li a p e d organ and lateral eyes are 

 like those of the female. 



Remarks: — The above description is based on two specimens, a mature female and Maierial of 

 a mature male, which were kindly sent to me by Professor (x. 0. Sars for a supplementary 

 investigation. To judge from a statenient by G. 0. S.\RS in his note under the original de- 

 scription, p. 279: ,, en fuldvoxen Hun med store gulr0deAegindenforSkallen"*, the female specimen 

 investigated by me does not seem to be the same one as that on which G. 0. Sars's original 

 description was based, as the female I investigated had no eggs in the brood-chamber (the eggs 

 in the ovaries were, however, rather large); moreover it was not dissected but quite intact. 



There can scarcely be any doubt, however, that the female investigated bv me reallv i<i':nuficatwn. 

 belongs to G. O. Sars's Cypriddna megalofs. — G. 0. S.-VRS's original description of this form 

 is very incomplete; G. W. MOllkr (1912) indicates this species as unidentifiable. All the 

 characters given by G. 0. Sars agree, however, with only one slight exception. The second 

 exopodite joint on the sixth limb sliould have only fourteen bristles, the five posterior ones of 

 which should, in addition, be separated from the anterior ones by a gap. ,, Lamina terminalis 

 subovata setis ciliatis circiter 14 posterioribus 5 ceteris intervallo brevi sejunctis marginata." 



The male of this species was previously entirely unknown. On account of the great '/'/"• male. 



resemblance it shows to the female, there can be little or no doubt that the male described above 

 really belongs to this species. The only thing that might be said not to be in favour of this 

 assumption is the fact that it is larger than the female. For if we are to judge from the literature 

 the males of forms belonging to this sub-genus are always somewhat smaller than the females. 



This species occupies a somewhat isolated position from the two forms of this sub-genus Position n-ithin ih, 

 that have been previously described on account of the following characters: "" "'?''""■'• 



the considerable lengthening of the f- and g-bristles of the first antenna in the male, 



the reduction of the endopodite of the second antenna, 



the development of special muscles for closing the end comb of the seventh limb and 



the strong development of the lateral eyes. 



Ft did not seem proper to me to include as synonyms Cypridina m^xjalops of A. M. NORMAX. Sxiwmymii. 

 is;)l, p. 121 („doiibtfid origin") and of C. H. (3stexfrld and V. Wi:si;mU':r(i.Lu\d, 1909, 

 p. 113. The information about these is not accompanied by any descriptions or drawings to 

 verily it. 



Habitat: — The exact locale of the specimens of G. 0. Sars investigated by me is unknown; 

 it is presumably on the west coast of Norway. 



Kristiansund, Norway: 1 mature female; \\ . Lii.L.iKRORG coll. The .specimen was 

 in a very bad condition, but good enough for certainty of identification. 



Distribution: — Nor w a y : Hardanger Fjord. 



Translation: „a full-grnwii tVmalf with lar^;*' yellowisli-rod ogRS inside the slu' 



