no. 1651. REPORT OH THE OSTRACODA—SHARPE. 4()X 



3. Family Cypridinid^e. 



16. Genus Gylindroleberis. 



26. C. otilonga (Grube), California coast. 



i'T. ('. lobianci G. W. Miiller, California coast, Catalina islands. 



17. Genus Pyrocypris. 



28. P. americana G. W. Miiller, off Honolulu. Hawaiian Is 



lands: May: night anchorage. 



18. Genus Philomedes. 



29. P. brenda (Baird), Gulf of St. Lawrence. Greenland coast. 



1. Family CYPRIDIDiE. 



Subfamily CjAlNTDONUSTJE:. 



1. Genus CANDONA Baird, 18SO. 



I. CANDONA PARALLELA G. W. Miiller. 



Plate LI, figs. 1-5. 



Candona parallela Muixer, Zoologica, XII, Heft 30, 1900, p. 25, pi. v. figs. 

 5 6, 23-25. 



Dimensions of female. — Length, 0.78 to 0.85 mm.; height, 0.42 to 46 

 nun.: breadth. 0.35 to OA'2 mm. Males unknown. 



Seen from the side (fig. 1), the highest part lies at the posterior 

 part, where the shell edge forms an angle, from which the dorsal mar- 

 gin runs nearly straight and approximately parallel to the ventral 

 inl^o to about the region of the eyespot, from which it abruptly slopes 

 forward with even an appreciable concavity to a narrowly rounded 

 anterior margin. 



Ventral margin slightly sinuate, the most so just opposite the 

 muscle impressions. 



Height to length about as 1 : 18. The growing line is farther from 

 the shell edge anteriorly and posteriorly, its distance anteriorly being 

 about one-fourth the distance to the muscle impressions. Shell com- 

 paratively plain, with but a few scattered papillae and setose both 

 anteriorly and posteriorly. 



Seen from above (fig. 2), the shell is bluntly pointed anteriorly, 

 more so posteriorly, the left shell clearly overlapping the right one. 

 The greatest breadth is approximately in the middle, its ratio to the 

 length being about as three to seven. 



Seta on anterior edge of penultimate segment of second antenna 

 of female longer than the last segment. 



Shorter seta of terminal segment of second foot (fig. 5) more than 

 twice as long as terminal segment. Second foot 5-segmented, no 

 seta at distal outer angle of third segment. Seta on median side 

 of penultimate segment of mandibular palp not plumose, short. 



Genital plate of female flat, without a backwardly directed process. 

 Caudal ramus (fig. 3) rather stout, about one-seventh as wide in the 

 Proc. X. M. vol. xxxv— OS 26 



