SALT-WATER POND AT AMBLE. 



335 



but in the male (figs. 6, 7) forming powerful forcipate claws; 

 first pair of walking feet simple (fig. 8), second pair (fig. 9) 

 bearing a slender falcate terminal claw and a long seta equal 

 in length to the joint from which it springs : caudal rami 

 (fig. 10) composed of slender papilliform bases from each of 

 which springs a long terminal seta. The ejaculatory duct of 

 the male (fig. 11) has a series of 12-14 whorls; the external 

 copulatory organs biramose distally (fig. 12). 



This species is especially interesting, inasmuch as, so far as 

 I am aware, it is the only instance of a typically fresh-water 

 Cyprid occurring in a truly marine habitat. Only four or five 

 specimens were found. 



EXPLANATION OF PLATES. 



Plate 9. 

 Bradya minor. 



Fig. I. Female and male in coitu X 84. 



2. Anterior antenna X 350. 



3. Fifth foot X 350. 



ECTINOSOMA BRUNNEA. 



Female X 84. 

 Anterior antenna X 2S0. 

 Posterior ,, X 280. 

 Mandible X 280. 

 First footjaw x 350. 

 Second ,, x 280 

 Fifth foot X 240. 

 Furca X 120. 



