196 EUG. DADAY DE DEÉS 



crassiusculus, sat dilatatus, in margine exteriore plus minusve 

 arcuatus, in interiore vero late sinuatus, in latere \ entrali prope 

 basin apophyse cuneiformi, longiuscula. Articulus apicalis 

 antennarum inferiorum plus minusve falciformis, introrsum 

 curvatus, utcunque triqueter, apice distali obtuso, apicem dista- 

 lem versus aut sensim angustatus (fig. 23, a-b) aut in parte quarta 

 posteriore intus mucronatus (fig. 23, «-r), basin in latere inte- 

 riore excavatus, in angulo basali intero-superiore processu sat 

 crasso, variabiliter aculeato, antice spectante, in angulo vero 

 intero-inferiore aculeo bi-vel trifido, aculeisque 3-4 parvis 

 armatus (fig. 23, c ; fig. 24, b), in latere ventrali prope basin 

 aut Isevis, aut processu aculeiformi, antice vergenti vestitus 

 (fig- 23, f). 



Appendix antennalis serriformis sat brevis, longitudinem arti- 

 culi basalis antennarum inferiorum parum superans linguifor- 

 mis, basin sat dilatata, apicem distalem versus valde attenuata, 

 musculosa, in margine exteriore prope basin processibus 6, 

 latitudine appendicis maxima, digitiformibus, médium versus 

 sensim brevioribus, in apice et in latere ventrali aculeatis, 

 aculeis, in série longitudinali ordinatis ; in parte distali marginis 

 exterioris processibus digitiformibus muUo brevioribus, apicem 

 distalem versus sensim minoribus, structura antecedentium 

 simili ; in margine interiore processibus digitiformibus brevi- 

 bus, latitudinem dimidiam appendicis non superantes, apicem 

 distalem versus sensim decrescentibus, in apice et in latere 

 ventrali aculeatis, aculeis in série longitudinali dispositis 

 (fig. 23, ^; fig. 24, f). 



Lamina basalis appendicis antennalis serriformis in margine 

 anteriore valde incisa, profunde sinuata, in lobos duos partita. 

 Lobus externus in margine exteriore processibus digitiformibus 

 3, 5, 7, in apice et in latere interiore aculeatis. Lobus interior 

 in margine interiore aut processibus digitiformibus, brevibus, 

 in apice et in latere interiore aculeatis, aut crenulatus, crenulis 

 parvis, in apice aculeatis (fig. 23, /'; fig. 24, d). 



Pedes 1-5 paris structura simili vel subsimili ; laminis bran- 

 chialibus duabus, in marginibus crenulatis ; sacculo branchiali 

 elongato-ovato, superficie laevi. Endopoditum angulo inferiore 

 vel posteriore extrorsum et interdum parum etiam retrorsum 



