73 



Length of female amounting to 1.10 mm.; of male to 1.13 mm. 



Remarks. As some of the species distinguished in recent times bear a very 

 close resemblance to the one here in question, it is very likely to believe, that 

 a confusion of these forms with C. Candida has formerly taken place. Indeed 

 it clearly appears from the several figures given in the most recent paper 

 published by Brady and Norman in 1889, that at least 3 different species have 

 been confounded and only regarded as simple varieties of C. Candida. The 

 statements uttered by some other authors on the great variability of the pre- 

 sent species seem also to point to a similar confusion. I have myself examined 

 a great number of specimens of this species from many different localities, 

 without having been aware of any obvious variability in the shape of the shell 

 in fully grown animals. In the immature state, it is true, the shape of the shell 

 may look somewhat different from that in adult specimens; but this is also the 

 case with most other species, and cannot of course be designed as variability 

 of the species. 



Occurrence. This Ostracod seems to be of very common occurrence over 

 the whole of our country, being found both in lakes and in small ponds and 

 ditches. Besides in many other places, I have taken it very abundantly in our 

 largest lake, Mj0sen, at Hamar, at a few fathoms depth, on a muddy bottom 

 overgrown with aquatic plants. The animal is rather sluggish in habits, crawling 

 slowly over the bottom, and often burrying more or less deeply within the loose 

 mud and detritus. Yet, it may easily be detected, owing to its shining white 

 colour. Male specimens of this species seem to have been very seldom met 

 with. I have however found several such specimens in the gatherings taken 

 at the above-named locality in Mj0sen. 



Distribution. Troughout Europe, Central Asia, Siberia, North America. 



Fossil in postglacial deposits of Sweden. 



14. Candona neglecta, G. O. Sars. 



(Pi. XXXIV, fig. 1). 

 Candona neglecta, G. O. Sars, Ostracoda mediterranea, Arch. f. Math. & Naturv. 1887, p. 107, 



PL XV, figs. 5-7, PI. XIX. 

 Syn: Candona Candida, Lilljeborg. 



, var. Brady & Norman. 



fabceformis, Va'vra (not Fischer) 



Specific Characters. Female. Shell conspicuously more elongate than 

 in C. Candida, seen laterally, oblong reniform in shape, greatest height behind 

 and scarcely attaining half the length, dorsal margin almost straight in the 



9 Crustacea. 



