OSTRACODA. 
201 
Scheldt, and Meuse. — C. canadensis and datmoni^ spp. nn., J3rady, I, c. pp. 452, 
453, pi. 19. figs. 4-0 and 8-10, Gulf of St. Lawrence; C. leiodermay Norman, 
from the same locality, described and figured, ibid. p. 451, figs. 11-13. 
Cythere silicida and margaritifera, spp. nn., Vera Cruz ; curvistriata, sp. n.. 
Cape Verde Islands ; s^migiosa and solandi, spp. nn., Pulo Pinang ; margolleiy 
zurcheri, contracta, and ciihoidea, spp. nn,, Magellan Straits. Brady in Ber- 
chon and Folin, Fonds de la Mer, parts xii. and xiii. pp. 192-201, pi. 27. figs. 
1-4, pi. 19. figs. 22, 23, pi. 28. figs. 1-4, pi. 27. figs. 6, 6, 13, 14, and 17-22. 
Cytheridea torosa (jQnes), var. n., and inccqualiSy sp. n., Brady, Ann. N. 
II. (4) vi. pp. 21, 22, pi. 8. figs. 6, 7, and pi. 9. figs. 1-4, Northumberland. 
(7. Uttoralis, Brady, is a variety of the former, ibid, footnote. 
Loxoconcha imsillay sp. n., Brady, 1. c. p. 23, pi. 8. figs. 1-3, ^Frith of 
Forth, some rivers in Norfolk, and Scheldt. — L.fi'agilis, G. O. Sars, ibid, 
p. 24, pi. 10. fig. 3, Montrose Basin and Budle Bay. 
Cytherura pi'opinqua, sp. n., .Brady, 1. c. p. 24, pi. 10. figs. 1, 2, Thames 
estuary. — C. undata, Sars, var., from the Gulf of St. Lawrence, Brady, ibid, 
p. 454, pi. 19. fig. 7. 
Cythcrideis foveolata, sp. n., Brady, 1. c. p. 454, pi. 19. figs. 1-3, Gulf of 
St. Lawrence. 
Polychelcs*, gen. nov. Shell fragile, structureless; lucid spots ten to 
twelve, arranged in a subradiate manner. Bight valve much larger. Supe- 
rior antennro 0-, inferior 4-jointed, and bearing strong terminal claws. First 
maxilla furnished with eight long and strong curved setae, and with a long 
biarticulate digit, which terminates in four curved claws. Third pair of feet 
much the longest, armed with two strong curved claws and one shorter seta. 
r. stevensoni, sp. n., Brady, 1. c. p. 25, pi. 7. figs. 1-7, and pi. 10. figs. 4-14, 
tidal rivers and lakes of Northumberland, also in the Scheldt. 
CYTHERELLIDA5. 
Cytherella cwwco5/s,sp. n.. Cape Verde Islands, and similis, sp. n., Magellan 
Straits, Brady, in Berchon and Folin, Fonds de la Mer, parts 12 and 13, 
pp, 199, 202, pi. 19. figs. 18, 19 and 16, 17. 
Xestoleberis polita, sp. n., Brady, in Berchon and Folin, Fonds de la Mer, 
p. 202, pi. 27. figs. 16, 16, Magellan Straits. 
ENTOMOSTRACA. 
COPEPODA. 
Cyclopidal. 
F. Plateau gives several pliysiologieal observations and ex- 
periments concerning this family, and especially Cyclopsine 
castor (Jurinc), having employed Ehrcnberg^s carmine process. 
]*laeh eye has its proper optic ganglion. The heart, the genital 
orifices, and the glands by which the ovisac is formed are de- 
scribed. Electrical discharges of moderate intensity do not kill 
the animal, but make it motionless for some time. Cyclops 
quadricornis (Miill.) dies in sea-water after a few minutes, 
* Preoccupied by C. Heller, 1862, in Crustacea. 
1870. [voL. VII.] 
p 
