COPEPODA. 
Crust. 44 
Candace cctMopica (Dana) : somewhat non-typical specimens from the 
Pacific, 21‘=‘ N. lat., described ; Streets, Bull. U. S. Nat. Mus. No. 7, [1877], 
p. 139. 
Metridia proposed for Metridium^ which is preoccupied in the Ccelen- 
terata ; M. armata (Bock) = Paracalanus hihernicus (Brady), and ? = 
Pleuromma (Claus). The curious globular stalked bodies observed to be 
attached to the maxillipeds, and probably taken for eyes by Claus, seem 
to be parasites. Specimens from Bafiin’s Bay, 70 33' N. lat., are six times 
the size of those from the Irish Coast. Norman, /. c. p. 251. 
Isias clavipes (Bock, 1864), first figured ; Brady, 1. c. p. 62, pi. vii. 
figs. 3-13, British Seas generally, 3-35 fath. 
Centropages typicus (Kroyer, 1849) = Ichthyophorha denticornis (Claus); 
id. 1 . c. p. 65, pi. viii. figs. 1-10, British Seas. 
Diaptomus gracilis (C. O. Sars, 1862), Gruber, Siisswass. Cal. p. 11, 
pi. i. figs. 14-24, Lakes of Constance, Zurich, and Wallenstatt in Switzer- 
land. 
Heterocope rohusta (G. O. Sars, 1862) ; id. 1. c. p. 5, freshwater, pi. i. 
figs. 1-13, Lake Constance and Lago Maggiore. 
Parapontella, g. n. Anterior antennae dissimilar in both sexes ; man- 
dibular palpus composed of only one branch ; inner branch of first pair 
of swimming feet 3 -jointed, of second, third, and fourth pairs 2-jointed. 
P. hrevicornis (Lubbock, as Pontella, 1857), British Seas, on the surface ; 
Biady, 1 . c. p. 69, pi. ix. figs. 1-16. 
CoRYCJIIDtE. 
Copilia mirahilis (Dana), from the Pacific, 8® S. lat., described ; 
Streets, Bull. U. S. Nat. Mus. No. 7 [1877] p. 141. 
NOTODELPHYIDiE. 
Doropygus normani and porcicauda, spp. hn., Brady, 1. c. pp. 136 & 138, 
pi. xxxii. figs. 1-14, pi. xxvii. figs. 1-9, and pi. xxxiii. figs. 14-16, Ireland, 
in the cavities of Ascidians. 
Pachynesthus, g. n. Male unknown. Female : extremity of the abdo- 
men terminated by two flat divergent plates ; antennoB short, rounded ; 
feet unguiculate, flat ; no appendages for protecting the eggs (“ ovitec- 
teurs'’). P. violaceus, sp. n., Brest, within a compound Ascidian. Hesse, 
Ann. Sci. Nat. (6) vii. No. 3, pp. 1 & 12, pi. v. figs, 1-11. 
Potyoon, g. n. Male unknown. Female : extremity of the abdomen 
terminated by two sharp points. Other characters resembling those of 
the preceding genus. P. luteum, sp. n., Brest, within a compound Asci- 
dian. Id. 1 . c. pp. 4 & 13, pi. V. figs. 12-20. 
Notes on some allied genera, described before by the same author ; id. 
1. c. pp. 11 & 12. 
Chondracanthid.®* 
G. M. R. Levinsen, Vid. Medd. 1878, pp. 351-380, enumerates the 
