CRUSTACEA. 



Zozymus ^eneus (Linn), Leach. 

 Plate 10, fig. 3 a, animal, natural size. 



Islands of the Paumotu Archipelago, Samoan Islands, and East 

 Indies. 



This widely-distributed species, when alive, is exceedingly beau- 

 tiful, and very unlike in its tints the figures hitherto published. 

 The' figure by Quoy and Gaimard, in Freycinet's Voyage (Plate 76, 

 fig. 1), is evidently from a dead specimen, the colouring being very 

 much faded and altered. The subdivisions of the areolets are some- 

 what remarkable. 2 M is divided longitudinally nearly through, and 

 from the anterior end of each part a segment is cut off. 5 L is di- 

 vided into two parts, and each portion is again partly divided. 3 M 

 is divided almost completely into three parts, and from each lateral 

 segment a small subareolet is separated anteriorly ; 4 M is united to 

 3 M between the two intermediate punctures. 1 P consists of four or 

 more parts, two anterior either side of the medial line (sometimes 

 subdivided), and two posterior on the medial line, the former of these 

 triangular and lengthened anteriorly, the latter small and suboval. 

 2 has a small tubercle at its base, and the same is true of 3 0. 



The spoon-cavity of the fingers is not circumscribed on the inner 

 side. 



Cancer seneus, Linn., Mus. Lud. Ulr., 451; Fabr. Supp., 335. 

 Zozymus seneus, Leach; Desmarest, 105; Edw., i., 3830. 

 JEgle seneus, De Haan, Faun. Japon., 17. 



Genus CARPILODES, Dana. 



Cararpax latus, undique convexus, tiudus, marginihm crasse rotundatis. 

 Pedes nudi,fere Iceves et subcylindrici. Aliis Zozymo similis ; Car- 

 pilio, Liomeraegwe habitu affinis. 



Carapax broad, convex in different directions, nude, margins stout 

 and rounded. Feet naked, nearly or quite smooth and subcylin- 

 drical. In other characters like Zozymus ; in habit near Carpilim 

 and Liomera. 



