THE OS TN A CO DA 69 



segments, endopodite minute and generally prehensile in male ; live pairs 

 of post-oral limbs ; caudal furca witli lamellar rami armed with spines. 



Family Halocypridae (Coxchoeciidae). Haloajpris, Dana ; 



Conchoecia, Dana. Family Asteropidae. Astcrope, Philippi { = (Jylin(ho- 

 leberis, Brady). Family Cypridinidae. Gypridina, H. Milne-Edwards ; 

 Philomcdes, Lilljeborg (Fig. 33, A) ; Pyrocypris, G. W. Miiller ; Giganto- 

 cypris, G, W. Miiller. Family Rutideriiatidae. Rutiderma, Brady and 

 Norman. Family Sarsiellidae. Samiella, Norman. 



Order 2. Cladocopa. 



Shell without antennal notch ; auleiiiiae biramouf;, both mmi well 

 developed and natatoi-y ; only three pairs of post-oral limbs ; other 

 characters as in Myodocopa. 



Family Polycopidae. Polycopc, G. O. Sars ; Pohicop><i>i, G. W. 

 Miiller. 



Order 3. Podocopa. 



Shell without antennal notch ; antennae with basal segment not 

 enlarged, one ramus (exopodite, Miiller) vestigial or absent, the other of 

 not more than four segments ; five pairs of post-oral limbs ; caudal furca 

 with styliform or vestigial rami. 



Family Paradoxostoj[atidae. Paradoxostoma, Fischer. Family 

 Cytheridae. Gythere, 0. F. Miiller ; Gythereis, G. 0. Sars (Fig. 33, 

 C) ; Krithe, Brady. Family Darwinulidae. Darwinula, Brady and 

 Robertson. Family Bairdiidae. Bairdia, M'Coy. Family Cyprididae. 

 Gjipris, 0. F. Miiller (Fig. 33, B) ; Pontocypris, G. 0. Sars. Family 

 Cypridopsidae. Cypridopsis, Bradv. 



Order 4. Platycopa. 



Antennae biramous, protopodite of two segments, endopodite of three, 

 and exopodite of two segments ; only four pairs of post-oral limbs ; other 

 characters as in Podocopa. 



Family Cytherellidae. Gytherdla, Bosquet. 



LlTEKATl'IlE. 



1. Brady, G. S. A Monograph of the Recent British Ostraeoda. Trans. Linn. 



See. xxvi. pp. 353-495, pis. xxiii.-xli., 1868. 

 '2. Report on the Ostraeoda. Rep. Voy. " Cliallenger, " Zool. i. 184 pp. 



44 pis., 1880. 



3. Bra/hj, G. S. , and Xorman, A. M. A Jlonogiapli of the JIarine and Froshwater 



Ostraeoda of the North Atlantic and of North-Wcstern Europe. Trans. 

 Roy, Dublin Soc. (2) iv. pp. 63-270, pis. viii.-xxiii., 1889; and v. 

 pp. 621-746, pis. l.-lxviii., 1896. 



4. Glaus, C. Beitr. zur Kennt. der Ostracoden. 1. Entwicklungsgeschichte 



von Cypris. Schr. Ges. Naturwiss. Marburg, ix. pp. 151-166, 2 \As., 

 [1868] 1872. 



