298 



CAPT, BOVALLTUS, AMPHTPODA HYPERlIDEA. I. 2. 



HYPERIID^E. 

 Euthemisto avtarctica. 



is narrow, linear, and is considerably longer than the inner ramus, which is about a 

 fourth part longer than the outer. The second pair reach only a little beyond the apex 

 of the peduncle of the third pair; the peduncle is broad, about 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, which is a little longer than the outer, and has the inner margin smooth. 



The telson is triangular, with curved margins, as long as broad, and considerably 

 shorter than the last ural segment; it is nearly as broad, and scarcely a fourth part as 

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



3. EUTHEMISTO AUSTRALIS, TH. STEBBING, 1888. 



Diagn. Tibia pedum percei quinti paris quam genu plus quara duplo longior, post producta, processum 

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

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

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

 longitudinis peduuculi pedum uri ultimi paris brevior. 



Tbe 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(?); 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.» (Stebbing.) 



Hab. »South-west of Melbourne, Lat, 39° 45' S., Long. 140° 40' E.; surfaces (Stebbing.) 



Syu. 1888. Euthemisto australis, TH. STEBBING. 



"Report on the Amphipoda». Voy. of 

 H. M. S. Challenger. Zoology. Vol. 

 29, p. 1417. 



As Stebbing in his description does not record some features, important for the 

 specific distinction, 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. 



