No. 481] MASSACHUSETTS OSTRACODES 



37 



3. Cypris fuscata ( -I urine ) 



Monoculus fuscatus Jurine, L c, 1S20, p. 171, I'.f. t^^. 1. 2. 

 Cypris fuscata Zaddach, L c, 1844, p. :r->. 

 Length 1.36 mm., height 0.81 mm., breadili O.:.') mm. 

 Near Fresh Pond, Cambridge, Mass. April 30, 100.). J. A. C, 

 coll. 



In a very shallow pond-hole this species was very abundant on 

 the date given. As in the case of the preceding species, this is 

 very widely distributed and should be found throughout New 

 England. 



4. Cypris reticulata Zaddach 



Cypris reticulata Zaddach, /. c, 1844, p. 34. 



length 1.20 mm., height 0.70 mm., breadth 0.60 mm. 



Brookhne, Mass. April 10, 1905. Irving L. Shaw, coll. 



Although this species is a very characteristic one and is widely 

 distributed in Europe, its occurrence in this country has hitherto 

 rested upon the single record of Dr. Sharpe. He found it in great 

 numbers at Normal, III., in a small grassy pool. It seems to 

 prefer such a habitat and therefore may be looked for in New 

 England in such places. The species was abundant in the col- 

 lection from Brookline. 



Subfamily Cypridopsinjc 



Cienus Cypridopsis Brady, 1868 



0. Cypridopsis vidua (O. F. Miiller) 



Cypris vuiua O. F. Miiller. En(^^ 



1792. p. 5"), tal). 4. fisrs. 7 0. 

 Cypridopsis vidua Brady. " A M* 

 coda," Trans. Li,i,i. S<>v. I.nml, 

 figs. 27-30, 4r>. 



Length 0.64-0.75 mm., height 0.38-0.42 mm., breadth 0.42- 

 0.47 mm. 



Small pond, West Cambridge, Mass. April 30, 1905. J. A. C, 

 coll. 



