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J 



126 Scientific Intelligence. 



1. Hiatus orhilcE internus processu basis antennce externd occupatus^ 



articulum 2dum occludens. 



G. 1. Etisus, Le^ic/i.* 



2. Hiatus orbilcB internus hasi antennce. extemcB occupaius^ articulo 



2do non occluso, 



1. Regio carapacis postica conyexa. 



G. 2. Cakpilodes, Dana. — Carapax latus, nudus, margine antero- 

 lateral! crasse roiundato. Pedes 8 postici subcylindrlci, nudi, 

 hiomerm habilu similis. 



G. 3, ZozYMus, LeachA — Carapax mediocrlter latus, margine 



^ fl • 



antero-laterali tenui. Pedes 8 poslici valde compressi, cristati 

 aut subcrlstati. Alergali habitu similis. ■ 



2. Regio carapacis postica fere plana. 

 'a, Carapax versus margines fi'ontalem antero-lateralemque curvatim decUvls. 



G. 4. AcT^^ODES, Dana,\ — Pedes 8 postici non cristati. ActcB<z 

 aspectu similis. Articulus maxillipedis exlerni Stius apicem vix 

 excavatus. 



G. 5. Da'ira, De Haan,^ — Pedes 8 postici non cristati. Articulus 

 maxillipedis externi Stius apice valde emarginatus- 



h. Carapax versus maryines frontalera antero-laieralemque vix declivis. 



G. 6. Chlorodius, Leach,\\ — Carapax plus minusve transversus 

 Articulus antennse externse Imus oblongus frontem bene attin- 

 gens. Articulus maxillipedis externi Stius subrectangulaius. 

 Xantlio aspectu similis. 



G. 7. PiLODius, Dana. — Carapax paulo transversus. Articulus 

 antenna; externa) abbrevialus, processum frontis oblongum at- 

 lingens tanlum. Paraxantho aspectu similis. 



G. 8. CvcLODius, Dana. — Carapax parce transversus. Articulus 

 antennas externae oblongus frontem bene attingens. Articulus 

 maxillipedis externi Stius triangulatus, latere interiore brevissimo. 



G. 9. Cymo, De Haan.^ — Carapax non transversus, fere orbicu- 

 latuSj disciformis. Antennis Chlorodio affinis. 



* Part of the species (the typical) have the arm long projecting, and a broad 

 form some^rhat like Cancer. Another part, quite different in habit, have a short 

 arm as in ActasoJes, and graduate into Actaiodes. The latter may well be named 

 Etisodes. 



, f Zozymits of Leach and JSgle of De Haan have the same species as type, the 

 Z, cBiieus, and De Haan makes the cristate cliaracter of the 8 posterior legs a generic 

 character. We follow him in this respect, though adding the character dependent 

 on the spoon-shape of the fingers, as done by Leach. 



X Includes Zozymm tomentosus and the allied, in which the 8 posterior legs are 

 «ot cristate. The species are closely like Act^ete except in the fingers. 



" Faun. Japon. 18 ; Lagodoma, Edwards, Crust, i, 386. 



jitelecgclus of Leach. 

 % Faun. Japon. 22. 



iynonyinous 



