CANCROIDS A. 229 



2. OZINJE. Carapax plus minusve transversus, lateribus non dila- 

 tatus. Digit! acuminati. Antennas internae transversae. Orbita 

 hiatu interne basi antennae occupato instructa. Abdomen maris 

 7-articulatum. 



1. Articulus antennae, external, \musfrontem bene attingens. 



G. 1. GALENE, De Haan.* Carapax transversus, longitudinaliter multo convexus, 



antice declivis. 

 G. 2. Ozius, Leach. Carapax transversus, latus, fere planus. 



2. Articulus antennae externce \rnus frontem non attingens. 



G. 3. PSEUDOZIUS, Dana.'f Carapax transversus, fere planus, latior, margine 



antero-laterali breviore quam postero-lateralis. 

 G. 4. PILUMNUS, Leach. Carapax angustus, parce transversus, saepius convexus, 



margine antero-laterali breviore. 

 G. 5. PILUMNOIDES, Edw. et Lucas.$ Carapax angustus, parce transversus, valde 



convexus, margine antero-laterali longiore, bene arcuato, super carapacem postice 



incurvato. 

 G. 6. MELIA, Latr. Carapax subquadratus, fere planus, fronte lato, oculis versus 



angulos insitis. Pedes toti graciles. Basis antennae externse cylindrica. 



An genus sequens hie pertinet? 



ACANTHODES, De //aaw. Carapax angustus, Pilumno forma affinis, spinis gran- 

 dibus antice armatus. Pedes spinosi. Species Acanthodes armatus Haanii mag- 

 nitudine portentosus. 



3. ACTUMNIN^E. Orbita Ozinls similis. Digiti instar cochlearis 

 excavati. 



G. ACTCMNUS, Z)arao.|[ Carapax paulo transversus, valde convexus, antice laterali- 

 terque curvatim declivis. Articulus antennas externae Imus processum frontis 

 attingens tantum. 



4. ERIPHIN^E. Orbita infra bene clausa, hiatu interne carens, ar- 

 ticulo antennae basali e orbita omnino excluso. Carapax sive paulo 

 transversus sive subquadratus. 



* Faun. Japon., 19. 



) Near Pseudocarcinus, from which it differs in the ridge on the praslabial plate, as 

 well as in its flatter form. 



J Crust. D'Orb. S. Am., 21. 



Faun. Japon., 20. 



|| Very near Actaea, but the praelabial plate or palate is strongly divided by a ridge 

 either side. Besides, the form is much narrower and more convex than in the Actaeae, 

 being subglobose above. 



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