1 6 BULLETIN OF THE LABORATORIES 



Genus Cypris, Miiller. 

 Cypfis ftiscata, J urine. 



Plate VII, Figs. 41-46.^ 



CypHs ftiscata. — G. S. Brady. Recent British Ostracoda, [186S), p. 362; pi. 



XXIII, figs. 10-15. 

 Cypris ftiscata. — G. S. Brady. Marine and Fresh Water Ostracoda of N. 



Atlantic and N. W. Europe. Podocopa (1889), p. 73; pi. XII, figs. 3, 4. 

 Cypns fuscata-' . — Wenzel Vavra. Mon. d. Ostracoden Bohmens, (1891), p. 



98-99; fig- ZZ^ Nos. 1-3. 



Length of the female, 1.5 mm. Height, 0.9 mm. Width, 

 0.67 mm. 



The greatest height of the animal is about two-thirds of the 

 length, while the greatest width is less than the height. The 

 color is greenish brown. The shell usually has attached to it 

 furfaceous matter, which Professor Brady thinks is desquamating 

 epidermis. 



Viewed from the side the caudal third of the shell is 

 wider than any other portion. The caudal, dorsal, and 

 cephalic borders are convex. The cephalic and caudal margins 

 have a narrow hyaline edge. The valves are not very transpar- 

 ent and are covered with short, scattered hairs. Muscle im- 

 pressions near centre of the valve, about seven. 



Viewed from above, the shell is oval, rounded behind and 

 bluntly pointed in front. The greatest height is in the middle. 



The natatory setai of the antennae extend to the tips of the 

 terminal claws. The terminal claws are stout, curved and long- 

 er than the last two joints. The distal half of the inner margin 

 of each claw is pectinated with a double row of fine teeth. 



The two enlarged spines upon the first mandibular process 

 are toothed. The extremity of each spine and the two adja- 

 cent teeth are blunt. 



■^Excepting Prof. Brady's monographs, reference is made in this paper to 

 no papers upon European forms, excepting papers that have appeared since the 

 publication of Prof. Brady's last monograph. In each case, however, an at- 

 tempt is made to refer to all of the American references. 



