689 



and exhibiting within the mesosome a remarkable globular dilatation of the 

 intestine. Length of the specimen examined but little exceeding 3 mm. 



Benmrks. — The above described remarkable Lysianassid may at once 

 be recognized by its short and compact body and the poor development of 

 the posterior divisions, somewhat reminding in this respect of certain species 

 of tlie genus Metopa. The strongly chelate anterior gnathopoda and the 

 peculiar, coarse serration of the basal joints of the 3 posterior pairs of pereio- 

 poda afford another very conspicuous characteristic. 



Occurrence. — Only a single specimen of this interesting form was 

 found in the Trondhjemsfjord, at Rodbjerget, at a depth of CO— 80 fathoms. 



Page 131. BathyporeJa Robertson!. 



This form was collected last summer rather abundantly in the Chris- 

 tianiafjord, at Laurkullen, Moss and Sandesund, on sandy bottom, near the 

 sliore. The female is very like that of B. pelagica and B. pilosa, but is at once 

 recognizable by its dark pigmented eyes. 



Page 133. Bathyporeia pilosa. 



I found this species during the past summer in great abundance at 

 Fredriksvsern, outside the Christianiafjord, at a depth of from 1 to 3 fathoms on a 

 bottom of fine sand. The body is pellucid, with a more or less distinct orange 

 tinge, tlie ovaries, as also the ova in the marsupial pouch, being of a dark 

 bluisli violet colour. The pigmentation of the eyes is of a dark red colour. 



Page 138. Urothoe norvegica. 



Distribution. — Coast of France (Chevreux). 



Page 141. Argissa typica 



Distribution. — • British Isles (Robertson). 



Page 144. Phoxocephalus Holbelli. 



Occurrence. — Christianiafjord, in several places, occasionally. 



Page 158. Harpinia crenulata. 



Distribution. — Coast of France (Chevreux), British Isles (Herdman). 



Page 168. Ampelisca assimilis, 



Dixtritiution. — British Isles (Robertson). 



91 — Crustacea. 



