82 ME. THOMAS SCOTT ON THE 



to names and arrangement of the species recorded below, I have 

 followed the Monograph of the marine and freshwater Ostracoda 

 of the North Atlantic and North- western Europe by Prof. Gr. S. 

 Brady and the Rev. Dr. A. M. Norman. 



PODOCOPA. 



(a. Freshwater.) 

 I Genus Ctclootpeis, Brady Sf Norman, 1889. 



Ctcloctpris globosa {G. 0. Bars). (PI. 4. fig. 1.) 



1863. Cypris glohosa, G. O. Sars (68), p. 27. 



Single valves of an Ostracod apparently identical with C. glo- 

 hosa were obtained in the gathering from Elmwood Pond. The 

 valve figured measures about 1*1 millimetre in longest diameter. 

 (This may be the Gypria lacustris of Lilljeborg, but the con- 

 vexity of the shell is rather too great to fit that species.) 



Genus Heepetoctpeis, Brady Sf Norman, 1889. 



Heepetoctpeis (?) DUBiA, sp. n. (PL 4. figs. 7-11.) 

 The shell seen from the side is subreiiiform ; the greatest height, 

 which is equal to fully half the length, is situated about one- 

 third of the entire length from the anterior end ; the upper 

 margin is considerably elevated in front of the middle; the 

 posterior slope is gentle and slightly curved, but anteriorly the 

 slope is more abrupt ; the anterior extremity is broadly rounded ; 

 the posterior end is also evenly and gently rounded, but is 

 rather narrower than the front end; lower margin slightly 

 sinuated. Seen from above, ovate, widest in the middle, greatest 

 width equal to about half the length ; sides evenly curved ; 

 extremities slightly acuminate. Shell surface smooth and 

 yellowish in colour. Length 13 mm. 



This Ostracod, seen from above, somewhat resembles Cypris 

 crassa, O. F. Miiller, and the side view is also suggestive of the 

 same species ; but when compared with the figures of that species 

 in Brady and Norman's Monograph, the present form, viewed 

 laterally, is seen to be more boldly arched. It may also be noted 

 that, when viewed laterally, H. duhia somewhat resembles 

 Candona rostrata seen in the same position ; but in that species 

 the dorsal view is different. It is just possible that H. duhia 

 may represent a somewhat immature stage of the next species. 



