34 



Gen. 3. Herpetocypris, Norman & Brady, 1880. 



Generic Characters. — Shell more or less elongate, height 

 generally nut attaining the half length, ventral edge sinuated in 

 front of the middle. Valves rather unequal, sometimes the right, 

 sometimes the left being the larger free ed«-es smooth, inner 

 duplicates generally very broad hi front. SVt;e of lower an- 

 tennae wry small and rudimentary, not adapted for swimming- 

 Palpus of 1st pair of maxilhe rather large, 1st joint dilated at 

 the extremity, terminal joint broader than it is long, obliquely 

 truncate at the tip; masticatory lobes very short and thick. 

 r ' uuh] ninii narrow, sublinear. daws smooth, or very minutely 

 denticulate. Propagation exclusively parthenogenetical. 



Remarks. — This genus has been proposed by Messrs Nor- 

 ™" & Brady in a work on the European Ostracoda recently 

 PHblished, for the reception of the well-known northern species. 

 Cypris reptans Baird, and some few other forms. As indicated 



