CRUSTACEA MALACOSTRACA. III. 



189 



lateral parts of the segments, where it is somewhat scabrous, the appendix masculina about as in the 

 preceding specimen. A third male from the Faeroes is 22-5 mm.; its abdomen is shaped as in the 

 typical granulosa Sars; nearly the whole surface is smooth, and the appendix masculina reaches the 

 end of the endopod. Thus the appendix masculina in these three very large males is intermediate 

 in length between those in I. granulosa and I. ticglecta as figured by Sars. These remarks may be 

 sufficient. 



Occurrence. Taken by the "Ingolf" at the north-west coast of Iceland in Isafjord, in shallow 

 water, and at the Faeroes in Trangisvaag, between algse at the beach. 



It has been captured several times at the west coast of Iceland, viz. in Adelvik, in Skutils 

 Fjord, and several times near Reykjavik, at the shore and down to i r / 2 fath. (various collectors, and 

 among them G. O. Sars, who in the North-Atl. Exped. Crust. II, p. 30 said that I. pclagica had been 

 taken by himself at Reykjavik, but in his "Account" referred his earlier I. pclagica Leach to I. neglecta). 

 Furthermore it has been gathered by Dr. A. C. Johansen south of Iceland at the Vestmau-Islands on 

 the beach. From the Faeroes our Museum possesses many specimens; of special localities only Vest- 

 manhavn, Klaksvig and Thorshavn have been noted. 



Distribution. This species is known from Denmark (H.J.Hansen) and occurs along the 

 whole coast of Norway from Christiauia Fjord to Vadso. It is known from various places at Scotland, 

 England, Ireland, Jersey and Guernsey (A. M. Norman, Tattersall). As to France Dollfus stated it to 

 be "tres commune sur routes uos cotes oceaniques"; from the Mediterranean it seems to be unknown. 



130. Idothea emarginata J. C. Fabricius. 



1793. Cymothoa emarginata J. C. Fabricius, En torn. Syst. II, p. 508. 

 ! 1895. Idotea — Dollfus, 1. c. p. 6, fig. 18. 



! 1897. Idothea — G. O. Sars, Account II, p. 85; PI. 35, fig. 2. 



The largest specimen, a male from Kvalbo, one of the Faeroes, is 32 mm. 



Occurrence. Taken by the "Ingolf in the Dyre Fjord, north-west coast of Iceland. 



Furthermore it has been gathered at some other places on the west coast of Iceland, viz., Hofn 

 Bay, 10 fath., and Adelvik, 9 fath. among Laminaria (by Mag. W. Lundbeck), and in large numbers at 

 Reykjavik. At the Faeroes it has been found a few times, and the localities noted are Vaago, 2—5 

 fath. (by the "Thor"), and 3 t / 2 — o fath. (by Mag. A. Ditlevsen), Sando (by Dr. Th. Mortensen), and Kvalbo 

 (by Cand. A. Fjelstrup). 



Distribution. This well-known" species has been recorded from the northern part of the 

 Sound and several places in Kattegat, 3—9 fath. (H. J. Hansen). It occurs along the whole coast of 

 Norway, going down to about 20 fath. (G. O. Sars); was found in the North Sea, 46 fath. (Zirwas); at 

 many places in Great Britain and Ireland (Norman, Tattersall); at Jersey (Koehler); is rare at the west 

 coast of France, goes southwards to Algeria, and was taken at Marseille (Dollfus). 



