Descriptions of some Australian Phyllopoda. 



length of the whole leg, epipodite comparatively small, exopo- 

 dite triangular, being produced to 2 opposite lobes of almos* 

 equal size. Exopodite of the 9 succeeding pairs having 

 the proximal corner acutely produced. Colour in alcoholic 

 specimens pale corneous, changing to a rather deep green. 

 Length of adult female (excluding the caudal filaments) reach- 

 ing 38 mm. 



Ke marks. There cannot, I believe, be any doubt that 

 the above characterised form is that described by Baird as 

 Lepidnrns Angasii. I am also much inclined to believe, that 

 the Tasmanian species recorded by the same author at an 

 earlier date as L. viridis^) does not in reality differ specific- 

 ally from the Australian form, and this is also believed by the 

 Rev, R. L. King. The only real characteristic which, according to 

 the statement of Mr. Brady, seems to distinguish the Tasmanian 

 form, is the serration of the lateral edges of the carapace 

 But this may have been something accidental with the speci- 

 men examined by Baird. Also in the form here treated of, 

 a slight attempt to a similar serration is sometimes found to 

 exist, though in most of the specimens the edge appears quite 

 smooth. As to the form of the carapace, as seen from above, 

 this, in the same species, now appears a broader, now a nar- 

 rower oval, according to the more or less strong inflexion ot 

 its lateral parts; and likewise the extent to which the cara- 

 pace covers the posterior part of the body is a very unreliable 

 character, since it merely depends on the more or less strong 

 contraction of the latter part. The colour in alcoholic speci- 

 mens is also subjected to great variation. As to size, the 

 Australian form here described holds about the mean between 

 those stated by Baird to be L. Angasii and L. viridis. The 



1) I have, however, not had an opportunity of consulting the descrip- 

 tion of Baird, as the Volume of the Proceedings, in which this form 

 has been described, is i^nfortunately wanting in our library. 



