H65 CRUSTACEA. 



PONTELLA SPECIOSA. 



Caput discretum, subtriangulatum, f route obtuswn. Cephalothorax 5-7- 

 articulatus, postice acutus aut obtusiusculus. Oculi superiores remoti, 

 inferiores rnediocres. Antennae anticce cephalothoracis longitudi?ie, 

 fere rectce, prope 110° divaricatce, 21-22-articidatce ; setis brevibus, 

 apicali anticd et penultimd posticd longioribus, articidum paido superan- 

 tibus, apicali posticd et antepenult imd posticd brevioribus, anticd penul- 

 timd perbrevi. Antenna dextra maris pauciarticulata, articulo quinto 

 laid ovato. Pes posticus dexter maris crassus,7nanu lata, apice truncatd 

 et obtusd dentatd, digito immobili e basi manus producto, elongate, 

 spiniformi, digito mobili piwlongo, incurvato. Styli caudales oblongi. 



Head separate, subtriangular, front obtuse. Cephalothorax five- to 

 seven-jointed, posterior angles acute or subobtuse, posterior segments 

 three (sometimes four and obtuse behind). Superior eyes remote, 

 inferior of moderate size. Anterior antennae about as long as the 

 cephalothorax, nearly straight, about 110° divergent, twenty-one- to 

 twenty- two-join ted ; setae short, anterior apical and posterior penult 

 rather longer than the apical joint, the posterior apical and ante- 

 penult shorter, the anterior penult very short. Right antenna 

 of male few-jointed, fifth joint large and broad ovate, the following 

 five (or last) slender. Right posterior leg of male stout, hand 

 broad, truncate at apex and obtusely dentate, immoveable finger 

 produced from base of hand, elongate, spiniform, moveable finger 

 very long, incurved. Caudal stylets oblong, second seta nearly half 

 the longest. Abdomen four-jointed. 



Plate 82, fig. 1 a, view, enlarged ; a', profile of head in some indi- 

 viduals; b, posterior feet, enlarged two diameters more than fig. a; c, 

 extremity of thorax and abdomen in some small individuals. 



Abundant, March 4, 1841, at the eastern entrance of the Straits of 

 Sunda. 



Length, one-twelfth of an inch. Colour, deep green, with a broad 

 silvery band (as long as broad) across the middle of the cephalothorax. 



