Victoi-ktii Decapod Crustacea. 1 1 



"Carapace siiiootli, flat; lamella broadly pentagonal with the 

 postero-latoral sides about a third as long as any of the otheis, 

 the regions not defined, the sides entire, unarmed. Front 

 a broad, horizontal, triangular lamina. No post-ocular tooth ; 

 eyes not concealed by the front, though theeyestalks are. Inter- 

 a;nnular septum a mere ridge. TCpistome as long as broad. 

 Chelipeds and legs smooth and slender. Chelipeds not stouter 

 than the legs, about 1^ times as long as the carapace ; fingers 

 slender, as long as the slender sub-cyclindrical palm, their tips 

 spooned. 



The anterior border of the meropodite of all the legs ends in 

 an iiiconspicuous denticle, the dactylus of all is long, sub-falciform 

 and strongly compressed, and has two or three denticles at the 

 top of the posterior border. The second and third pairs of leg.s, 

 which are the longest, are more than three tiines the length of 

 the carapace." — (Alcock). 



Dredged off Rhyll, Western Port, Victoria, by J. Gabriel. 



Sub-order— BR ACHYUll A ANOMALA. 

 Family — Droiiiiidae. 



Platydromia thomsoni, nobis. 



Proc. Roy. Soc. Victoria, vol. 14 (n.s.), 190:', pi. 2, p. 57. 



Stebbing (Marine Tn\ estimations of South Africa, vol. 4, 

 Crust., pi. 3, p. 60, 1905) states that it is not clear from our 

 desci'iption whether it is intended to indicate that the sternal 

 sulci of the female terminate between the chelae or between the 

 fir.st pair of aml^ulatory legs. 



To render our description more clear, we take this opportunity 

 of adding that the sulci end on the chelipede segment of sternum, 

 and a line drawn across the sternum from the point of articula- 

 tion of the basal joint of the cheliped with the sternum just 

 touches the anterior margin of the curved ridges which meet in 

 the centre line. 



