AUSTBALIAN MALACOSTBAOA. 227 



plate. Q-nathopoda not subehelate. Coxae of the gnathopoda 

 and the two anterior pairs of pereiopoda very large. The three 

 . posterior pairs of pleopoda uniform. Telson squamif orm, cleft. 



412. Stegocephalus latus. 



Stegocephalus latus, Haswell, 1. c, Vol. iii., p. 252, pi. viii., fig. 2. 



Cephalon short, about half as long as first segment of pereion. 

 Pereion dilated. Pleon slightly compressed. Superior antennae 

 as long as the cephalon and first segment of the pereion ; first 

 joint of peduncle compressed ; third joint longer than second ; 

 flagellum as long as third joint of peduncle, composed of few 

 (seven or eight) articuli ; appendage very short. Inferior 

 antennae nearly as long as the superior ; flagellum very short, 

 of six articuli. Grnathopoda sub-pedif orm, similar ; anterior pair 

 with the basos much shorter than that of the posterior pair; 

 both hairy, with the carpus and propodos of equal length, the 

 former sub-triangular, the latter narrow. Posterior pereipoda 

 withthe meros produced and pointed at its postero-distal angle, 

 and the carpus rather short, with two teeth at its distal extremity. 

 Three posterior pairs of pleopoda stout ; the rami of all three 

 equal, short. Telson small, squamiform, slightly cleft. 



Tasmania. 



Genus Amabyllis, Haswell. 



Superior antennae with a well-developed appendage. Mandibles 

 with a palp. Maxillipedes with well-developed squamiform plates. 

 Anterior gnathopoda sub-pediform. Posterior gnathopoda 

 imperfectly subehelate. Rami of the fourth and fifth pleopoda 

 stylif orm ; those ot sixth pair broad-lanceolate. Telson squami- 

 form, cleft. 



413. Amaryllis macrophthalmus 



Amaryllis macrophthalmus, Haswell, 1. c, Vol. iii., p. 253, 

 pi. viii., fig. 3. 



Eyes vertically elongated, sub-erescentic. Superior antennae 

 equal in length to the cephalon and first five segments of the 

 pereion ; first joint of the peduncle as long as the cephalon ; 

 second and third joints short ; flagellum longer than peduncle, 

 of about thirty segments ; appendage of seven segments. Inferior 



