Nr. 5] THE CEPHALOPODA DIBRAN CHIATA 11 



operation at East Spitsbergen lasted from the end of June to the 

 end of August. In these summer months of 1889 eggs of R. glau- 

 copis were obtained. Eggs with embryos of the same species in a 

 sponge were also taken bv Duc D 'Orleans at St. 45, 77°3r N., 

 18°24' W., 275 m., 7« 1905 Grieg. 1909, p. 39, pi. 79, fig. 18). — 



Biological differences in the 2 species of Rossia mav be summed 

 up in the sequel. 



R. macrosoma. R. glaucopis. • 



Eggs fixed to things on hard Eggs enclosed in soft spon- 



bottom, colour light blue, ges, colour greyish white, 



diam. 9—10 mm. Eggs with diam. 7—9 mm. Eggs with ma- 



macroscopic embrvos observed croscopic embryos observed 



in the 2th and lOth month of from 6th to 8th month of the 



the year, There is an embryo- year. There is no embryonic 



nic rostral point (figs. 2 and 4). rostral point. 



Loligs forbesi Steenstrup. 

 In V. Storm's collection of the Trondhjem Museum there is a 

 species of Loligo marked L. forbesi, Trondhjem. I suggest the de- 

 termination is correct as the fin is going around the end of the body. 



Architeiithus diix Steenstrup. 



This species, of course, does not belong to the fauna of the Trond- 

 hjem Region, but it is noted here because it has happened that this 

 gigantic cuttlefish is driven ashore. Two specimens from Kirksæ- 

 teroren in Hevnefjord ( $ '% 1896, cT ''h 1896) are preserved in the 

 Trondhjem Museum (V. Storm, 1897, p. 97—102). A third strand- 

 ing of Architeiithus took place '7-3 1916 at Hellandsjo west of the 

 mouth of the same Hevnefjord. The specimen was found on tlie 

 beach and the obsener, Johan .F. Vaagan.couM see the arms a 

 little moving and a boy who placed his foot on the suckers made the 

 experience that his shoe was inmediately fastened and he must 

 draw his foot out of it. The body was used as bait and I got only 

 some remnants, Length of the tentackles 6.2 m. On the short arms 

 the suckers were arranged in 2 series. On the tentackle clubs there 

 were 4 series of suckers which were of different size, viz. 2 files of 

 great suckers in the middle, surrounded by a file of small suckers 

 on each side. 



Strandings of Architeiithus on the Norwegian coasts in later yeais 

 are recorded by A. Brinkmann (1916). There is only one occurence 

 to be added. In November 1919 a gigantic cuttlefish stranded in 

 Øyvåg of Donna off the coast of Nordland\ On the European side 



1 Helgelauds Blad, Xr. 141, 1711 1919. 



