On some Indian Phyllopoda. 21 



denticulate along their concave edge. As compared with 

 that in the preceding species (see PI. II, fig. 8), this piece 

 appears on the whole somewhat narrower, with the spini- 

 form projections less curved. 



Occurrence. — The 2 specimens in the collection were 

 both taken in a rain-pool on a small hill at Shalingur, North 

 Arcot District. 



Fam. Limnadiidœ. 

 Kem arks. — In the restriction now adopted by the pre- 

 sent author, this family comprises as yet 4 genera, viz., Lim- 

 nadia Brogniart, Eulimnadia Packard, Limnadopsis Spencer 

 & Hall, and Limnadella Girard. The last-named genus is, 

 however, still very imperfectly known. In the collection re- 

 ceived from Prof. Henderson there are 2 distinct species 

 belonging to this family, both being referable to the same 

 genus. 



Gen. Eulimnadia, Packard. 



Remarks. — This genus is closely allied to Limnadia, 

 from which it chiefly differs in the greater development of 

 the epipodites of the legs, and in the bisexual character of 

 the species, those belonging to the genus Limnadia being 

 exclusively monosexual (parthenogenetic). By far the greater 

 number of species recorded by different authors as Lim- 

 nadiœ belong to this genus, which is represented in all con- 

 tinents, except Europe, their number being as yet about 12 in 

 all. To these are now added 2 apparently new species from 

 India. 



Eulimnadia similis, G. O. Sars. 



(PI. IV, figs. 1—7.) 

 Specific Characters. — F e m a 1 e. Shell without any 

 traces of umbones; seen laterally, oblong oval or elliptical in 



