218 AUSTRALIAN MALACOSTRACA. 



rounded projection directed upwards, at the distal end of its 

 dorsal border ; extremity of dactylos scarcely reaching the distal 

 extremity of the propodos. Length f in. 

 Port Denison, Queensland, on sandy beach. 



397 Talorchestia marmorata. A.M. 



Talorchestia marmorata, Haswell, 1. c, p. 99, pi. v., fig. 3. 



Male. Superior antenna? longer than the cephalon ; flagellum 

 rather longer than the last segment of the peduncle, composed of 

 five articuli. Inferior antennae rather more than three times as 

 long as the superior pair; peduncle stout ; flagellum as long as the 

 peducle, composed of about seventeen articuli. Anterior gnatho- 

 poda with the carpus sub-triangular, its inferordistal angle produced 

 into a compressed, rounded process ; the propodos subequal with 

 the carpus, much broader distally than proximally, the infero- 

 distal angle produced and rounded ; the palm transverse, armed 

 with short setae ; the dactylos well-developed, shorter than the 

 palm. Posterior gnathopoda large ; carpus minute, propodos 

 heart-shaped, the palm oblique, armed with numerous short setae, 

 and defined by a minute acute tooth. Pereiopoda very thick, 

 base of last pair not dilated behind. The whole of the integument 

 very hard. Colour marbled red and white. Length \% in. 



398. Talorchestia pravidactyla. A.M. 



Talorchestia pravidactyla, Haswell, 1. c, pi. v., fig. o. 



Male. Superior antennae scarcely so long as the cephalon and 

 the first segment of the pereion ; flagellum as long as the last 

 two segments of the peduncle, composed of seven articuli. 

 Inferior antenna? more than three times as long as the superior 

 pair ; last segment of the peduncle more than twice as long as 

 the penultimate ; flagellum as long as the last segment of the 

 peduncle, of 21 articuli. Anterior gnathopoda with the propodos 

 broader distally than proximally, the inf ero-distal angle produced 

 into a short narrow process ; palm transverse, concave ; dactylos 

 acute, rather longer than the palm. Posterior gnathopoda having 

 the propodos large, heart shaped, the palm oblique, defined by a 

 blunt tooth, with a second tooth close to it on the distal side, 

 and a rounded elevation about the middle ; dactylos geniculate, 

 its apex lying between the two palmar teeth when the hand is 

 closed. Last pair of pereiopoda with the basos dilated posteriorly. 



