40 MR. A. O. WALKER ON AMPHIPODA 



Among the Lysianassidse, notwithstanding the large size of 

 most of the specimens, I have not met with an ovigerous female 

 or a male with fully developed lower antennae. Probably, like 

 Aonathilla homari of our own seas, they reach maturity in deep 

 water. 



The collection consists of 22 species belonging to the following 

 genera : — 



Hyperia 1 species. 



Hyperiella .... 1 „ 



CJieirimedon .... 2 „ new. 



Orchomenopsis . . 2 „ new. 



Orchomenella . . 2 ,, new. 



Trypliosa 2 ,, new. 



Hoplonyx 2 „ 1 new. 



Ampelisca 1 „ 



Oediceros 1 ,, new. 



Epimeria 1 „ new. 



Eusirus 1 „ new. 



Oradarea, new . . 1 „ new. 



Atyloides ...... 1 ,, 



Atylus 1 „ new. 



Liljeborgia .... 1 „ 



Haplocheira .... 1 „ 



Jassa 1 ,, new. 



AMPHIPODA. 



Fam. Htperiid^. 

 G-enus Htperia, Latreille, 1823. 



H. GrAUDiCHAUi)!, H. Milne- Edtoards. 



Cape Adare, " surface," Nov. 2, 1899, 2 young S ; Nov. 11, 

 1899, " from jelly-fish caught on surface," 9 specimens, ^ $ 

 and young ; surface, S. lat. 78° 35', Feb. 18, 1900. 



Length of largest female 23 mm. 



G-enus Htpeeiella, £ovallius,lS87. 



H. DiLATATA, Stehhing, 'Challenger' Amphipoda, p. 1403, 

 pi. 171. 



Cape Adare, on the beach, April 5, 1899. Two males. 

 Length 5 nun. 



