1902] The Holotlmrioidea of Northern Norway. 7 



are, however, hermaphrodites as Théel recently (1901) has poin- 

 ted out. Thus the diiference between both these animals is less than 

 I (1896) from particulars then to hand, had reason to suppose. If 

 one wishes to characterize M. verrilli as a subspecies or even only 

 as a variety of M. intestinalis, it may be justifiable — in reality 

 we know only too little of the systimatical valne of different 

 characters; but to declare that both these species are fully identi- 

 cal seems to me not warranted by facts, even if one possibly should 

 find, that they, where their regions meet, are connected by inter- 

 mediate forms. As long as the identity of two species is open 

 to the slightest doubt, they ought to be given separate names, 

 even if they should be degraded to the rank af varieties. This 

 would incite to renewed investigations, but to abolish a species 

 altogether, the right of which as a species seems doubtful, 

 causes a great deal of confusion (cf. p. 20 regarding Mijriotrochus 

 vitreus), especially so as it tends to call forth too hasty conclusions 

 respecting zoo-geography. 



4. Cucumaria frondosa (Gunnerus). 



Bålstad 68^ N., April 1897. 



Troldfiordssimd between Eolfso and Ingo 71» 2' N., 25/^ 1899, 30—40 m., 

 sand with Laniinarians. 



Eost 670 30' N., 28/^ 1897 and Eeine 67^ 56' N., ^i/^ 1897 m stomachs of 

 Cod {Gadus rallarias). 



This species is met with all over Finmark right up to the 

 Varanger Fiord, where I saw it myself in 1896. It is also found 

 on the Murman Coast (Jaezynsky). 



5. Cucumaria hispida (Barrett). 

 Syn. Echinocucumis typica M. Sårs. 



Salten Fiord 67» 14 5' N., V4 1900, 320—380 m., clay, + «.650 c. 



Landegode 67» 22' N., ^o/g 1900, 300—400 m., clay, + 6 20 C. 



Sag Fiord 670 55' j^_^ is/^ ^899, 200 m., clay, + 6.4" C. 



Oxsund 680 N., 17^ 1899, 600 m., clay, + 6.30 C. 



Skraaven 68» 10' N., ^s/o 1899, 1^00—400 m., clay. 



Brettesnes 68» 12' N., ^Va 1899, 350—400 m , clay, -f- 6.3» C. 



Tranodybet 680 12' N., 16/3 1899, 607—640 m., clay, + 6.30 C. 



This species, as far as is known, has never been found in 

 East Finmark, neither have I myself seen any specimen from the 



