1871.] MR. G. S. BRADY ON EUROPEAN CYPRIDINIDjE. 29.i 



is composed of one small joint, from the expanded base of which 

 arise four short setse, from the apex one minute seta, and from the 

 middle of the upper margin one of excessive length and plumose. 

 The length of the secondary branch in the male is very great, 

 equalling that of the primary branch. 



Hub. Fosse de Cap Breton (Bay of Biscay), 70 fathoms. 



8. Asterope elliptica, Fischer. 

 Hab. Mediterranean. 



9. Asterope marine, Baird, sp. 



Cypridina marine, Baird, 1850. 

 CyUndroleberis marice, Brady, 1868. 



Hab. Shetland, West of Scotland, Penzance, Channel Islands, 

 Bay of Biscay. 



10. Asterope teres, Norman, sp. 



Cypridina teres, Norman, 1861. 



CyUndroleberis teres, Brady, 1868. 



I am not disposed, without further proof, to indorse the opinion 

 of G. O. Sars that this is the female of the foregoing species. It is 

 indeed possible that such may be the case, and their occurrence in 

 company (taken in the same gatherings) lends some probability to 

 the supposition ; but I have already described, in my " Monograph 

 of the Recent British Ostracoda," a form differing in anatomical 

 structure very remarkably from the male A. marice, and differing, 

 too, just in those parts where sexual distinctions would be likely to 

 show themselves. I have not materials at hand to reinvestigate this 

 subject ; but the examples from which my descriptions were taken 

 certainly bore a closer resemblance to the male A. marice than does 

 A. teres. If, then, A. teres be the true female of marice, we must 

 also have another and very closely allied species confused with the 

 former. Further examination is requisite before pronouncing de- 

 cidedly in the matter. 



11. Asterope abyssicola, G. O. Sars. 

 Hab. Norway. 



12. Asterope norvegica, G. O. Sars. 

 Hab. Norway. 



EXPLANATION OF THE PLATES. 



Plate XXVI. 



Philomedes interpuncta. 



Fig. 1. Carapace of female, seen from left side. X 40. 



2. Carapace of female, seen from above. X 40. 



3. Superior antenna of female. X 84. 



4. Inferior antenna of female : «, portion of basal joint ; b, natatory 



branch ; c, secondary branch. X 84. 



5. Mandibular foot of female. X S4. 



