136 



bases. Eyes at the bases of tbe tentacles on the upper side, 

 but slightly on the inner side of the axis of the tentacle, they 

 are surrounded by a circular colourless space ; foot short and 

 pointed posteriorly. 



Habitat. — Mangrove swamps about Port Adelaide ; sheltering 

 under shrubby-samphire, just above high-water mark, in 

 company with Alexia meridional is, Brazier, but not so 

 abundant as that species (Tate). Among shell-sand, north side 

 of Streaky Bay, probably inhabiting the extensive samphire 

 flat about Acraman Creek, Streaky Bay (Tate). 



DESCRIPTION OF A NEW SPECIES OE PHYLLOPODOITS 

 CRUSTACEAN. 



Lepidttkits viridttltts, nov. spec. 



Animal, including flap of tail- segment, about an inch long, 

 carapace rounded, elongate oval, of a brownish-green colour, 

 covering the whole abdomen, excepting flap of tail-segment ; 

 keeled towards the extremity, ending in an acute point, 

 Innately notched posteriorly, and sharply and conspicuously 

 hooked on its margin. Front and lateral margins of the 

 carapace smooth and thickened. The rings of the abdominal 

 segments, dark-brown, are beset with stout spines, equi-dis- 

 tantly placed all round, and directed backwards. The flap of 

 the tail-segment has a blunt keel along its whole length, with 

 blunt prominences, and its edges are ciliately serrated. The 

 filaments of the tail are about half the length of the body, and 

 are clothed with fine cilia. 



Habitat. — Collected by Thomas Tate, October 1878, in the 

 flood waters of the " Reedbeds," near Adelaide. 



Two Australian species of the genus have been described, 

 L. viridis, so-called from its colour, inhabits Tasmania, and 

 was diagnosed by Dr. Baird, Proc. Zool. Soc, 1850 ; and L. 

 Angasi, of the same author, 1866, which is of a pale horny 

 colour, and is common in the rain pools about Adelaide. L. 

 viridis is characterised by its fine green colour, by its oval 

 carapace covering less of the body than in L. Angasi, and the 

 edges of the lower half of its length being serrated. L. Angasi 

 is distinguished by its horny colour, its rounded carapace 

 covering nearly two-thirds of the body, and by the smooth 

 edges of the sides of the carapace. 



L. viridulus differs from L. Angasi in colour, in the carapace 

 covering more of the abdomen, its keel limited to the hinder 

 part, and in the narrower and more spathulate tail flap. 



