AUSTRALIAN MALACOSTKACA. 243 



431. Atylus monoculoides. A.M. 



Atylm monoculoides, Haswell, 1. c, Vol. iv., p. 327, pi. xviii., 

 fig. 4. 



Eyes very large, nearly meeting above. Superior antennae as 

 long as the eephalon and first six segments of the pereion ; first 

 segment of the peduncle rather shorter than the eephalon, stout ; 

 sesond narrower and shorter, third scarcely distinguishable from 

 the articuli of the flagellum ; flagellum nearly twice as long as 

 the peduncle ; articuli broader than long at the proximal end, 

 longer than broad distally, each armed with fasciculi of setae both 

 above and below, every second articulus slightly expanded at its 

 infero-distal angle and tipped with auditory cilia. Inferior 

 antennae rather shorter than the superior pair ; third joint of 

 peduncle short, very stout, fourth and fifth subequal, the latter 

 rather narrower thau the former ; flagellum as long as the last 

 two segments of the peduncle ; articuli very much broader than 

 long at the proximal end, becoming longer than broad towards 

 the extremity. Maxillipedes with a well-developed squamiform 

 plate on the ischium and a smaller one on the basos. Gnathopoda 

 equal, similar, the propodos ovoid, narrower distally than 

 proximally, the palm not defined. Pereiopoda short and stout, 

 bordered with fine seta, the two last pairs rather longer than the 

 third. Last three pairs of pleopoda with slender, acute, stylif orm 

 rami, armed with a few fine setae and slightly curved at the apex. 

 Telson triangular, blunt, cleft in rather more than half its length. 

 Colour light olive with a few red spots on the antennae ; eyes 

 blue-black. Length i in. 



Port Jackson ; Port Stephens. 



432. Atylus lippus. 



Atylus lippus, Haswell, 1. c, p. 328, pi. xx., fig. 1. 



Eyes roundish, the pigment scattered. Superior antennae as 

 long as the eephalon and first five segments of the pereion ; 

 segments of the peduncle short and stout, the first the largest, 

 the third very small, scarcely distinguishable from the articuli of 

 the flagellum ; flagellum twice as long as the peduncle ; the 

 articuli longer than broad, each armed both above and below 

 at the distal end with a few setae, every fourth dilated inferiorly 

 and distally, and crowned with stout cilia. Inferior antennae 



