AUSTRALIAN MALACOSTKACA. 225 



400. Aspidophoreia dimenensis. A.M. 



Aspidophoreia dimenensis, Haswell, 1 c, Vol. v., pi. vi., fig. 2. 



Superior antennae as long as the cephalon and the first segment 

 of the pereion, rather longer than the peduncle of the inferior pair ; 

 flagellum longer than the peduncle, of about twenty articuli. In- 

 ferior antennae with the peduncle stout, the fourth joint the largest ; 

 flagellum slightly shorter than the peduncle, of about twenty 

 articuli. Anterior gnathopoda with the carpus sub-triangular 

 in outline ; the propodos larger than the carpus, irregularly tri- 

 angular, palm transverse, deeply concave. Posterior gnathopoda 

 large ; propodos heart-shaped, palm oblique, armed with short 

 bristles. Basa of three posterior pairs of pereiopoda broad, that 

 of the fifth pair much expanded behind ; their anterior borders 

 serrate and armed with setae, the posterior border smooth. 

 Ramus of last pair of pleopoda short, conical, acute. Telson 

 consisting of two quadrangular scales, separated by a linear 

 fissure. Surface (in the spirit specimen) ornamented with 

 numerous, very minute, white dots, arranged in clusters of three 

 or four. Length f in. 



Tasmania. 



Family II GAMMARID^l. 



Superior antennae well developed. Inferior antennae inserted 

 in a notch at the infero-anterior angle, and not fused with the 

 cephalon. Maxillipedes unguiculate. Coxae largely developed 

 and squamiform. 



Sub-Family Stegocepilialides. 

 Superior and inferior antennae subequal. Coxae of the second 

 pair of gnathopoda and of the first and second pairs of pereiopoda 

 monstrously developed ; second pair broader than the preceding. 

 Pereiopoda subequal. Last three pairs of pleopoda styliform. 

 Telson single. [Sp. i?.] 



Genus Montagua, Spence Bate. 



Superior antennae as long as the inferior, and not furnished 

 with a secondary appendage. Mandibles not furnished with an 

 appendage. Maxillipedes pediform, unguiculate, and without, 

 or with only rudimentary squamiform plates. First pair of 



