686 



tlie narrow, sigmoitl eyes, and especially by the very robust structure of the 

 propodos of the posterior gnathopoda. It is otherwise nearly allied to T. 

 H0rringn and T. angulata, and has the 1st segment of the urosome produced 

 dorsally in a very similar manner. 



Occurrence. — Some specimens of this form were collected during the 

 Norwegian North Atlantic Expediton in Stat. 124 and 35U, the first located 

 outside the Nordland coast, the 2nd, west of Spitsbergen. It was, however, 

 at that time erroneously determined as T. Horrinciii. 



Page <S3. Pseudotryphosa umbonata. 



A single living specimen of this rare form was recently taken at Bejan 

 from a de])th of 30 — 40 fathoms. The colour of the animal was a pure white, 

 and the eyes, which could not be distinctly seen in the alcoholic specimens 

 formerly examined by me, showed themselves to he of a similar narrow sig- 

 moid form to that in Hoplonyx cicada, with light red pigment. 



Page 88. Anonyx nugax. 



As observed in the remarks to this species, the arctic form would 

 seem to differ somewhat from that occurring off the coast of Norway in 

 the structure of the anterior gnathopoda, and may perhaps be specificall}' 

 distinct. In this case, the name A. lagena proposed by Kroyer should be 

 retained for the Norwegian form. 



Page 90. Anonyx Lilljeborgii. 



I have found this species of late years rather frequently in the 

 Trondhjemsfjord, as also occasionally off the west and south coasts of Norway 

 in depths varying from 10 to nO fathoms. 



Page 92, Hoplonyx cicada. 



Distyibution. — Coast of France (Chevreirx). 



Page 93. Hoplonyx similis. 



Distribution. — British Isles (Robertson). 



Page lOG. Onesimus Normani. 



Of this species, hitherto only recorded from Finmark, a single speci- 

 men was taken last summer in the Christianiafjord, at Soon, from a depth of 

 about 80 fathoms. The bod\- was of a pure white colour, with reddish ova 

 in the marsupial pouch. 



