North American JFresJi-ioater Ostracoda. 457 



Candona reflexa n. sp. (PI. XL VII., Fio-. 1-3.) 



Shell twice as long as high, thin, minutely granular or 

 pitted, fragile, cinereous, somewhat thickly ciliated on 

 both extremities, which are evenly rounded, the anterior 

 more pointed than posterior. (Further notes on shell 

 impossible from lack of specimens.) 



Terminal segment of first foot as long as the penulti- 

 mate segment is wide; sides of all the segments armed 

 with clusters of small setse (Fig. 1). 



Second foot (Fig. 2) five-segmented, the fourth segment 

 being undivided; terminal segment as wide as long and 

 about a third as long as the penultimate segment. The 

 shorter terminal seta, instead of pointing backward as 

 usual, is somewhat reflexed; for about a third of its 

 length it lies in the same line as the inner edge of the 

 terminal segment ; then it is flexed at an angle of about 

 60° and lies in nearly the same straight line as the pe- 

 nultimate segment. The longer of the two backwardly 

 directed setae is as long as the last two segments. 



Caudal rami (Fig. 3) slightly curved, stout, eight times 

 as long as wide. Terminal claw evenly curved, lightly 

 toothed, strong, half as long as the ramus; subterminal 

 claw three fourths as long as the terminal one and 

 slightly bent near its base. Dorsal seta as long as the 

 subterminal claw, and distant one and a half times the 

 width of the ramus from it; terminal seta somewhat 

 shorter than the width of the ramus, blunt, rather stout. 



This is the only Candona I have thus far met with 

 having the peculiar partly reflexed seta of the second 

 foot. AVhether this is a characteristic of a young stage 

 or not, I am not prepared to say. The species is some- 

 what closely related to C. Candida, but easily distin- 

 guished by the characters of the second feet, and the 

 proportions of the segments of the first feet. 



Collected at Havana, 111., May, 1895. 



