Mr. E.J. Miers an new Species of Crustacea. 117 



rest, on which account probably White named this species 

 8. quadricarinata. 



Atylus australis. 



Paramcera australis, Miers, Ann. & Mag. Nat. Hist. ser. 4, xvi. p. 75 

 (July 1875). 



In the 'Annals ' for July I established for this species a new- 

 genus, Paramoera, allied to Melita in having the inner branch 

 of the caudal appendages short or rudimentary, but differing 

 from it in the absence of a secondary appendage to the superior 

 antennae. The examination of a series of younger specimens 

 has shown that the rami of the caudal appendages are in 

 reality equally developed ; but the inner ramus of the last 

 pair, being very loosely articulated with the base, is frequently 

 detached ; this is the case with the two adult specimens in the 

 collection brought home by the Kev. A. E. Eaton. 



The species must now be referred to the genus Atylus, and 

 is most nearly allied to Atylus Jissicauda from Valparaiso 

 (Iphimedia jissicauda, Dana, U.S. Explor. Exped., Crust. 

 p. 929, pi. lxiii. fig. 4). It resembles that species in having 

 reniform eyes and each lobe of the telson emarginate ; but 

 differs as follows : the telson is much longer, each lobe is 

 somewhat narrowed to the apex, with the emargination very 

 small and placed a little laterally ; the gnathopoda are subequal ; 

 the fourth segment of the pleon is somewhat produced back- 

 ward over the fifth, with the posterior margin straight ; and 

 the infero-posterior angles of all the segments of the pleon 

 are rounded, not acute as in Atylus Jissicauda. 



The name Paramoera must still be retained for Dana's 

 Melita tenuicornis, from New Zealand, unless it should prove 

 that this species is also mutilated in the way above described. 



Melita Fresnelii (Audouin) is probably incorrectly figured 

 with exappendiculate superior antenna?. 



Nymphon brevicaudatum, n. sp. 



First (mandibular) pair of palpiform appendages well deve- 

 loped, three-jointed, terminating in slender cheke. The seventh 

 (first tarsal) and eighth (second tarsal) joints of the legs straight, 

 subequal, very slender. Abdomen terminating posteriorly in 

 a short process. 



Length of body | inch. 



Hob. Kerguelen's Land {Admiralty, Brit. Mus.). 



This species resembles Nymphon styligerum, described in 



