372 EEPOET OF COMMISSIONER OF FISH AND FISHERIES. [28] 



EPHYRIN^. 

 ACANTHEPHYRA A. M.-Edwards. 



The figures of Acanthephyra armata, which Milne-Edwards has re- 

 <ieiitly published (Recueil de figures de Crustaces nouveaux on peu 

 <X)nuus), show that it is congeneric with my Miersia Agassizii. Milne- 

 Edwards's genus was characterized in a very indefinite manner, one of 

 the original species has since been refeiTed to Fandalus, and no char- 

 ;acters have been given for distinguishing it from Miersia; but as 

 Milne-Edwards probably had access to typical species of Miersia, 

 .Acanthephyra is most likely a distinct genus, which should include the 

 ttwo following species. 



In both these species the structure, number, and arrangement of the 

 Ibranchise is essentially as in the typical species of Fandalus, except 

 there is no epipod at the base of the fourth leg, so that the branchial 

 iformula is as follows : 



.A.CANTHEPHYRA AGASSIZII. 



Miersia Agassizii Smith, Bull. Mus. Comp. Zool., x, p. 67, pi. 11, 

 pi. 12, figs. 1-4, 1882. 



(Plate VIII, Fig. 1.) 

 Specimens examined. 



3.5-7; 



