230 CRUSTACEA. 



G. 1. KDPPELLIA, Edw. Carapax latior. Antennae pars mobilis externae orbits, 



paululum remota. Artioulus maxillipedis extern! 3tius paulo transversus. 

 G. 2. ERIPHIA, Latr. Carapax angustus, convexus, fronte saepius valde declivi. 



Antennas pars mobilis externae orbita longe remota. Articulus maxillipedis ex- 



terni 3tius paulo transversus. 

 G. 3. DOM^ECIUS, Eydoux et Souleyet.* Ruppellice forma antennisque externis 



affinis. Carapax depressus, angustus. Articulus maxillipedis externi 3tius valde 



transversus, brevissimus. 

 G. 4. TRAPEZIA, Latr. Carapax subquadratus, planus, glaber, fronte horizontalis, 



leviter 6-8-dentatus aut sinuosus, lateribus longitudinalis. Tarsi non unguicu- 



lati, minutfe spinulosi. Brachium ultra carapacem longe exsertum. 

 G. 5. TETRALIA, Dana.'f Carapax aspectu Trapezice affinis. Frons horizontalis, 



rectiusculus, subtilissime denticulatus. Tarsi breviter unguiculati. Brachium 



ultra carapacem paulo exsertum. 

 G. 6. QUADRELLA, Dana. Carapax subquadratus, paulo convexus, Isevis, fronte 



horizontalis, 6-spinoso-dentatus. Tarsi unguiculati. Brachium ultra carapacem 



longe exsertum. 



SUBFAMILY I. OZINJE. 



GENUS OZIUS. 

 Ozius TRUNCATUS, Edwards. 



Plate 13, fig. 4 , female, natural size, from Bay of Islands, New 

 Zealand ; b, abdomen of same, natural size ; c, moveable finger of 

 larger hand. 



Bay of Islands, New Zealand, and Illawarra, New South Wales. 



Length of carapax from Illawarra, one and seven-eighths inches ; 

 greatest breadth, two and seven-eighths inches; ratio of length to 

 breadth, 1 : 1'53. Of female, from New Zealand, length, one and one- 

 sixth inches; breadth, one and three-fourths inches; ratio, 1 : 1'5. 

 Carapax nearly plane above, but not glabrous, granulous anteriorly. 

 The areolet 2 F is prominent ; 1 M and 2 M are united ; 2 M and 3 M 



* Voy. of the Bonite, Crust., pi. 2, f. 5 ; also, " Voy. au Pole Sud," under D'Urville, 

 in the Astrolabe and ZeUSe, plate 6, figs. 3-7, by Hombron and Jacquinot. 

 | Amer. Journal Sci. [2], xi. 223. 



