76 
$ with ova were found almost the whole year round: Jan. 1., 
May 1., June 16. and 18., July 30., Aug. 5., Sept. 16, Octob. 29. 
Fig. 3. Corophium Bonelli, (J' and ^ . 
(Setæ totally omitted in the two figures of cephalon of (J' and ^ ). 
Occurrence in Denmark. Mr. Hj. Ussing has collected 
the species from the following localities. Frederikshavn, 1 m (in 
Halicondria panicea) 5—8—1923, salinity abt. 20 %o. — Aamølle 
(Hadsund Fjord, Mariager Fjord) 1 m, Okt. 1922 and 29—10—1922; 
ibid. 1 — 1 —1923 and 27—5—1923, Nissum Brd.v. Lemvig ca. 1 m, 
5/1924. 
From earlier time the Zoological Museum possesses the species 
