298 



CAKL BOVALUrS. AMPHIPODA HTPF.TillPEA. I. 2. 



HYPERIID^. 



Etithemjsto atitarctica. 



is narrow, lineai-, and is considerably longer than tbe inner ramus, which is about a 

 fourtli part longer than the outer. The second pair reach only a little bevond the apex 

 of the peduncle of the third pair; the peduncle is broad, abont three times as long as it 

 is broad at the apex; the lower inner corner is scarcely produced; the inner ramus is 

 shorter than the peduncle, and about a third part longer than the outer ramus. The ped- 

 uncle of the third pair is broad, linear, with the lower inner corner not produced; it is 

 more than four times as long as broad, and about a third part longer than the inner 

 ramus, Avhich is a little longer than the outer, and has the inner margin sraooth. 



The tehon is triangulär, with curved margins, as long as broad, and considerably 

 shorter than the last ural segment: it is neai-ly as broad, and scarcely a fourth part as 

 long, as the peduncle of the last pair of uropoda. 



EUTHEmSTO AUSTRÅLIS, TH. STEBBING, 18i 



Diagn. Tibia peJu/n percci quinti paris quam genu plus quam duplo longior, post producta, processum 

 formans diniidio stipitis articuli multo breviorem; dactylus longus, levis. Pedes uri primi 

 paris pedes secundi paris superantes(?): peduDRulus ramo interno paullulo longior; ramus 

 externus pedum secundi ac tertii pariiim ramo interno multo brevior. Telson tertia parte 

 longitudinis pedunculi pedum uri ultimi paris brevior. 



The tibia of the fifth pair of perwopoda is more than twice as long as the genu ; the lower 

 hind corner is produced, forming a process which is much shorter than half the rest of 

 the joint; the dactylus is long and smooth. The first pair of uropoda reach beyond the 

 apex of the second pair C?); the peduncle is only a little longer than the inner ramus; the 

 outer ramus of the second and third pairs is much shorter than the inner. The telson is 

 shorter than a third part of the peduncle of the last pair of uropoda. 



Colour. ? 



Length. »About a quarter of an inch.» (StebbixG.) 



Hal). »South-west of Melbourne, Lat. 39° 45' S., Long. 140° 40' E.; surface.» (Stebbixg.) 



Syn. 1888. Euthemisto australis, TH. STEBBIXG. 



»Report on the Amphipoda». Yoy. of 

 H. M. S. Challeflger. Zoology. Vol. 

 29, p. 1417. 



As Stebbing in his description does not recoi'd some features, important for the 

 specific distiuction, and as he does not give any drawings, it is impossible to say any- 

 thing at present of the value of the species. For further knowledge on the matter I 

 refer the reader to Stebbing's work quoted above. 



