211 
ved Hirtsholmene, Syd for Læsø og endnu et Par Steder i Kattegat. 
Den foretrækker Sandbund med Tang, især Zostera, og findes 
sjeldent paa dybere Vand end 4—5 Fv., men kan ogsaa træffes i 
selve Landingen eller paa Stranden under Stene. 
25. Munna Fabricii Kroyer, partim; non M.Fabricii G. 0. Sars 
PL II, figs. 13—1 6. 
Munnu Fabricii Krøyer, Naturh. Tidsskr. Ny R. 2. B., p. er: vers 
— Kråyer, Voy. en Scand., Crust, Pl. XXXI, 
Boeckii ads enn Togter, p. 193 (but not M. Boeckii 
i O. Sars, Account, II, p. 107, Pl. XLIV.) 
The synonymy will show that extreme confusion prevails in 
the interpretations ete. of various authors. Our Museum possesses 
a number of specimens from Godthaab (West Greenland) labelled 
by Kråyer M. Fabricii and certainly his types. But some 
of these specimens are identical with MM. Boeckii Er, 50 
Sars, and the other specimens are to be considered the real 
M. Fabricii Kr, to be described presently. A perusal af Kråyer's 
text, especially of his deseription of the antennular flagellum, shows 
that he mixed together two species, and his figures in Gaimard 
give the same result. Furthermore M. Fabricii G. O. Sars is 
not identical with any of the two species described by Kråyer 
as M. Fabricii, but it is a third species, which is separately 
enumerated and mentioned below. 
It is now necessary to give a new description of M. Fabricii 
Kr., that is to say of the species represented among his types by 
the specimens not belonging to M. Boeckii Kr., and for which 
the name M. Fabricii Kr. is to be preserved. This species is 
somewhat similar to M. Boeckii Kr., G&G. 0. Sars, but differs 
sharply in the structure of the antennulæ and in the shape of 
abdomen. The antennulæ (fig. 1a) are nearly as in M. Kråyeri Goods. 
as figured by G. O. Sars; the second joint is short and thick, 
considerably shorter ihan the first and scarcely one-third as long 
again as broad, third joint as usually small, while the flagellum 
