252 TEKTH ANNUAL REPORT 



I have coliected from various sources what I could of the extensive 

 bibliography of this, the sole species of the genus. One of the most 

 characteristic and pleasing figures given is that of Weismann in his 

 article on the " Schmuckfarben der Daphnoiden," though we believe 

 that author in the wrong in the deductions made. Our specimens rarely 

 approach the brilliancy of the plate, and there seems to be a more le- 

 gitimate way of explaining these secondary colors than by sexual 

 selection. This species is never abundant, nor is it very rare; found 

 in Lake Minnetonka, and the larger lakes with their outlets. 



Ill On Notadromas and Camharus. 



CYPRIDJE. 



This group is one of the most difiicult and perhaps least studied. A 

 number of species some of which, perhaps most, are new, occur in Min- 

 nesota, and among them is a Ci/pris which exceeds any described form 

 in size. I only mention one genus which is cosmopolitan. 



NOTADROMAS, Lilljeborg. 



Carapace differing in male and female; eyes two; antennae similar to 

 those of Cypris, the superior having seven and the inferior six joints; 

 setae of inferior antennae reaching beyond the apex of the terminal 

 claws; second pair of jaws without a branched appendage, in the male 

 pediform; abdominal rami rather long. 



NOTADROMAS MONACHUS, Milller. 



Bibliography. 



Cypris monacha, Midler, Latreille, Bosc, Demoresf, Biird, Edwards, 



Monoculus monachus, Gnielin, Manuel, Fabricius, Rees, Jurine. 



Notodromas monachus, Lilljeborg, De Crust, ex ord. trib. 



Brady, British Ostracoda. 



Females of this widely distributed species were collected near Min. 

 neapolis, presenting in as far as could be seen no material points of dis- 

 tinction from English types. 



