﻿66 PROCEEDINGS OF THE NATIONAL MUSEUM vol. loo 



formed spines and the structure of the second leg clearly separate it 

 from Ilyocypris. The present specimens agree in every respect with 

 those described by Dr. Klie (1939) except in size (1.92 mm. as com- 

 pared with 1.75 mm. in the case of the female and 1.40 mm. com- 

 pared with 1.60 mm. in the case of the male). 



Genus CYPRINOTUS Brady 



Cypris Ramdohb (part), Mag. Ges. Naturf. Freunde Berlin, vol. 2, p. 84, 1808 

 Monoculus JuRiNE (part), Hist. Monocules, p. 1, 1820. 

 Cyprinotus Brady, Journ. Linn. Soc. London, vol. 19, p. 301, 1885. 

 Cypris (Cyprinotus) Sharpe, Proc. U. S. Nat. Mus., vol. 26, p. 989, 1903. 



Height usually gi'eater than half the length. Valves unequal, the 

 left always the longer, with smooth margins. Right valve more or 

 less tuberculated. Natatory setae of second antennae well developed. 

 Thu^d masticatory process with two spines, either toothed or plain. 

 Furcal ramus fairly well developed, with dorsal setae situated rather 

 close to the base of the subterminal claw. Terminal claw longer than 

 half the length of the ramus. 



CYPRINOTUS OVATUS (Sars) 



Figure 12, n 



Hemicypris ovata Sars, Arch. Naturv. Christiania, vol. 25, No. 8, p. 26, 1903. 

 Cyprinotus ovatus G. W. Muller, Das Tierreich, vol. 31, p. 167, 1912. 



Specific characters. — Female: Height about seven-elevenths of the 

 length; highest posterior to the middle. Dorsal margin well rounded. 

 Posterior margin broadly rounded; anterior less so. Dorsal margin 

 with a slight indentation over the eye. Ventral margin slightly 

 concave. Left valve crenated. Surface of valves smooth but 

 covered with a delicate lacework of quadrangular markings. Dorsal 

 seta of furcal ramus shorter than subterminal claw. Length 1.10 mm. ; 

 height 0.60 mm. 



Male: Unknown. 



Material examined. — One specimen was collected from a pool near 

 Sobra, Ceard, by Dr. Wright. 



Recorded distribution. — Sumatra (Sars). 



Genus CHLAMYDOTHECA Saussure 



Chlamydotheca (subg.) Saussure, M6m. Soc. Geneve, vol. 14, p. 487, 1858. 

 Chlamydotheca VXvra, Ergebn. Hamburger Magalhaens. Sammelr., vol. 2, Ostra- 



coda, p. 16, 1898. 

 Cypris Sars (part), Arch. Naturv. Christiania, vol. 24, No. 1, p. 20, 1901. 



One or both valves with flangelike projections at each extremity. 

 Well-developed natatory setae on second antennae. Third masticatory 

 process of maxilla with one toothed spine and two smooth ones. 

 Second segment of first leg with two well-developed setae on inner 



