1889.] ON A SMALL COLLECTION OF FRESHW. ENTOMOSTRACA. 7 



forms, though a more exact examination of living specimens might 

 perhaps reveal some few distinctive marks. 



Also of this form, which evidently is that described by King, 

 I succeeded in picking up several specimens from the bottom 

 residue of the tube, some of which were in a comparatively good 

 state of preservation. 



Alona pulchella, King. 



Alona pulchella, King, 1. c. p. 260, PI. VIII. B. 



This Alona, which I believe is identical with the species 

 described by King under the above name, though his figure does 

 not quite agree, is very nearly allied to the two species described 

 by me in a former paper as A. Archeri and A. Icevissima. It is 

 however readily distinguished from both these species by the 

 carapace being striated longitudinally, as in most other species 

 of the genus. In the figure given by King the striae are drawn 

 somewhat obliquely, and the inferior edges of the valves appear 

 concaved instead of being nearly straight. These apparent dif- 

 ferences, however, I believe to be due to a less exact examination 

 by the said author. In all other respects, also in the form and 

 armature of the tail, the species examined by me would seem to 

 agree fairly well with that described by King. It attains a length 

 of 0,57 mm. 



Some few specimens of this form were picked up together 

 with the two above mentioned Lynceidse from the bottom residue 

 of the tube. 



Ostracoda. 



1. Cypris sp? 

 Only a single specimen of this form, which somewhat resemble: 

 common European species, C. incorujruens Ramdohr, was fount 

 ,! " collection. It measures 1,39 mm. in length. 



