244 Froceedings of the Royal Society of Victoria. 



Genus 1— Eulimnadia, Packard, 1874. (P]. XXXIV., 

 Figs, la, b, c). 



1. Eulimnadia dahli. G. O. Sars. 



Reference. — Arch, for Math, og Xaturvid, Christiania, xviii., 

 Xo. 8, pp. 14-30, pis. ii.-vi. 



Specific Characters. — Shell in both sexes of same appearance, 

 very thin and pellucid, without any trace of umbones ; seen 

 laterally, of a rather regular elliptical shape, with the height but 

 little more than two-thii'ds of the length, dorsal margin evenly 

 vaulted, and having its greatest convexity somewhat in front of 

 the middle, ventral margin forming a perfectly even curve, and 

 joining the anterior and posterior edges without any intervening 

 angle, both extremities nearly equal, obtusely rounded at the tip, 

 and having above a distinct angle ; seen from above, narrow 

 fusiform, the greatest width in front of the middle. Maximum 

 number of lines of growth only four pairs. Head having in both 

 ^exes the frontal part considerably produced ; rostrum in female 

 very short and obtuse, being only defined in front by a slight 

 sinus ; that of male considerably more prominent, terminating in 

 an acute point. Antennae and oral parts of the usual structure, 

 ■excepting that the posterior maxillae are quite rudimentary. 

 Legs, 20 pairs, having the epipodites of considerable size ; the 

 two anterior pairs in male very strong, subchelate. Tail with 

 two short, juxtaposed dentiform projections in front of the caudal 

 ■claws, the latter, throughout the greater part of their length, 

 fringed posteriorly with long ciliated setae, caudal plates termi- 

 nating below in a very acute, straight corner, and having the 

 posterior edge divided into 12-16 small denticles; dorsal spines 

 present only in a single distinctly developed pair. 



Length of shell in female attaining 7 mm.; in male, 5.50 mm. 

 <G. O. Sars). 



Locality. — Neighbourhood of Port Darwin, Northern Australia 

 (Sars) ; Charlotte Waters, Central Australia (collected by P. M. 

 Byrne, Esq., March, 1896). 



Ronarks. — A considerable number of specimens that I have 

 from Charlotte Waters are undoubtedly this species. They agree 

 very closely with Sars' description and figures in all respects 



