xc NATURAL HISTORY. 



14.— AMPHITHOE EDVARDSI. 



TALITRUS EDVARDSI.— Soft : Supp. to Parry's 1st Voyage— p. ccxxxiii., pi. 2, figs. 1—4. 



Ross, App. to Parry's 3d Voyage— p. 119; and Polar Voyage — p. 205. 



T. (A.) rostro corniformi, antennis subsequalibus, corpore ovato depresso, cauda compress^ tricarinata spinosii. 



The Talitrus Edvardsi of Sabine, belongs to the genus Amphithoe of Leach, whicli 

 is adopted by Latreille. The excellent description and plate above referred to, render 

 any further remark unnecessary. 



It is an abundant species in the Arctic Seas, more especially near the island of 

 Igloolik, where it was taken on a former voyage in very great numbers. 



Nov. Gen.— ACANTHONOTUS. {Owen, MS.) 



Char. Gen. — Anteiinre subsequales, 4-articulatce, articulo ultimo e plurimis segmentis efformato, articulo 

 tertio superiarum brevissimo. Pedes 4-antici, monodactyli, filiformes, articulo ultimo primi pans 

 serrate. Rostrum productum acutum, incurvatum. Ocuh parvi. 



15.— ACANTHONOTUS CRISTATUS. 



Chab, Sp. — A. segmentis 4-anticis in cristil continuti supernis elevatis ; reliquis in spinis retrorsum 



inclinatis productis. 



Acanthonotus cristatus, which forms the type of a new genus, closely allied to 

 Talitrus of Latreille, was first discovered near the island of Igloolik, during Sir 

 Edward Parry's second voyage ; but as no account of the Marine Invertebrate 

 Animals brought home on that occasion was published, it has hitherto escaped 

 unnoticed. In the course of our late voyage a few specimens, both of this and the 

 following new genus, were obtained at Felix Harbour. 



