10 G. O. SABS. PRELIMINAHY NOTICES ON THE SCHIZOPODA. 



aud even in the fourth family of the Schizopoda. the Euphausiid*. 

 I have found. that the ova are carried in quite a sirailar manner 

 beneath the anterior division of the boåj. although distinct incu- 

 batory lamellæ here are wanting. The very peculiar structure of 

 the ambulatory legs in Chalaraspis or Eucopia. although rather 

 unlike the usual Schizopode type, is equally different from the form 

 characteristic of the Penæidea. while the stroug development of 

 the exopodites, or natatory branches. unquestionably points to the 

 Schizopoda. The structure and arrangement of the branchiæ agrees 

 very nearly with the same in the Lophogastrida?. and the antennæ. 

 and oral parts, are very different from what is known in the Pe- 

 næidea, and essentially of the same form. as in other Schizopoda. 



12. Eucopia australis. Dana. 



Eucopia australis, Dana, Unit. States Expl. Exp. Zool. pg. 609, pL XI, ng. 10. 

 Chalaraspis ungviculata, Willem. Suhm, Transact. Linn. Soc Lond. 2 ser. Vol. 

 I, pg. 37, pl. VIII. 



Memarks: There cannot, I believe, be any doubt as to the 

 identity of Chalaraspis ungviculata of Willem. Suhm with Eucopia 

 australis of Dana. The last mentioned author says. it is true, 

 that the two posterior pairs of legs. in Eucopia, are filiform, whereas 

 in Chalaraspis. it is stated by Willem. Suhm, that only the last 

 pair exhibit this form. But this divergent statement may in my 

 opinion readily be explained from the circumstauce, that in the 

 solitary specimen examined by Dana, the four posterior pairs were 

 partly broken. In all other respects the accordance between the 

 two forms is very striking. 



Hab. North Atlantic, South of Nova Scotia U. S. (Stat. 50), 

 1250 fins.; and West of Azores (Stat. 73), 1000 fnis.; single spe- 

 cimens. Subantarctic Ocean, South of Australia (Stat 158), 1800 

 fms.: ;j more or less complete specimens. North Pacific, off Lana- 

 gava. Japan (Stat. 237), 1875 fms.: 1 imperfect specimen. 



