108 EUG. DADAY DE DEÉS 
concharum concinne punctatae, maculis pellucidis dispersis, rotundis; 
ova membrana granulosa tecta........ Caenestheriella Belfragei (Pack). 
Pars apicalis pedum secundi paris maris in latere inermis ; pedes tertii paris 
maris palpo enditali carentes; aculei marginales telsoni glabri; valvulae 
concharum concinne granulatae, intervallis pellucidis, angustis, transver- 
salibus; ova membrana lineolata tecta. Caenestheriella Packardi (Brady). 
5. Valvulae concharum disperse granulatae, vel punctatae.............. 6 
Valvulae concharum disperse granulatae, areolis pellucidis, rotundis.. 12 
Valvulae concharum concinne granulatae, intervallis pellucidis, transver- 
salibus, Sdepissime Framosts AS MN NN RER Re 31 
6. Pedes omnes margine epipoditi branchialis integro....,.............. 7 
Pedes omnes margine epipoditi branchialis crenulato ; pedes 10-paris femi- 
nae palpo endopoditali fusiformi; aculei marginales telsoni tenues, 
ASPECT ER PU .... Caenestheriella vidua Dad. n. sp. 
. Pars apicalis pedum primi paris maris in latere inermis.............. 8 
Pars apicalis pedum primi paris maris prope clavam apicalem in latere setis 
en 
8. Pedes tertii paris maris palpo enditali carentes..:.................... 9 
Pedes tertii paris maris palpoenditali distincto ; pedes 10-paris feminae palpo 
endopoditali rudimentario perbrevi; aculei marginales telsoni asperi, 
HIVETSC MA SNL... UE Caenestheriella educta Dad. n. sp. 
Pars apicalis pedum secundi paris maris in latere inermis.......... ID 
Pars apicalis pedum secundi paris maris margine inferiore recto, in latere 
prope basin clavae apicalis setis tenuibus, longis, in serie transversali ordi- 
nalis, ad basin palpi endopoditalis tuberculo setifero; aculei marginales 
telsoni subaequales, asperi .............. Caenestheriella Grubei (Sim.). 
10. Angulus posterodorsalis concharum simplex..................... sl 
Angulus posterodorsalis concharum produclus; pars apicalis pedum primi 
paris maris prope clavam apicalem margine interiore excavato, tuberculo 
lato, prominente; aculei marginales telsoni sat tenues, sensim cres- 
CENTOR CAS DEMI RECENT SN Her AR Caenestheriella Bucheti Dad. n. sp. 
11. Segmenta 15 posteriora trunci dorsolateraliter armata ; pars apicalis pedum 
primi paris maris in medio marginis interioris tuberculo obsoleto, prope 
basin clavae apicalis parum late sinuata.. (Caenestheriella Morsei (Pack). 
Segmenta 18 posteriora truncei dorsolateraliter armata ; pars apicalis pedum 
primi paris prope basin clavae apicalis sat profunde sinuata tuberculo dis- 
(IDC(O ANCUSIOR RE CRE RTE Caenestheriella variabilis Dad. n. sp. 
12. Valvulae concharum zonis incrementi senioribus rude granulatis, 
junioribus vero concinne granulatis et maculis rotundis, pellucidis ornatis ; 
aculei marginales telsoni sensim crescentes, tenues, asperi; ova membrana 
poris rotundis armata tecla...... ..... Caenestheriella rubra Dad. n. sp. 
13. Pedes tertii paris maris palpo enditali carentes... .........:....... 14 
Pedes tertii paris maris palpo enditali distincto ; caput maris rostro latius- 
culo, in apice rotundato ; pars apicalis pedum secundi paris maris in medio 
marginis interioris tuberculo late rotundato; ova membrana lineolata et 
poris rotundis armata tecta.......... Caenestheriella Joubini Dad. n. sp. 
14. Pedes omnes margine epipoditi branchialis crenulalo............... 15 
Pedes omnes margine epipoditi branchialis integro; caput maris rostro 
angusto, acute terminato ; pars apicalis pedum secundi paris maris in mar- 
gine interiore recta; ova membrana lineolata tecta....................... 
Caenestheriella Ehrenbergi Dad. n. sp. 
45. Rostrum maris breve, latiusculum, margine ventrali recto; pars apica- 
lis pedum secundi paris maris margine interiore late sinualo ; aculei mar- 
ginales telsoni tenues, asperi, sensim crescentes; ova membrana granulata 
Le] 
