BY WILLIAM A. HASWELL, M.A., 1 253 



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 antenna) 

 nearly as long as the superior ; flagellum very short, of six articnli. 

 Gnathopoda sub-pediform, similar; anterior pair with the basos 

 much shorter than that of the posterior pair ; Loth hairy, with 

 the carpus and propodos of equal length, the former sub-triangular, 

 the latter narrow. Posterior pereiopoda with the 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. 



Length about five lines. 



Hub. Tasmania (M.-M.) 



This species — of which the Hon. William Macleay has two 



specimens in his collection (obtained, I believe, by Mr. W. F. 



Petterd in Tasmania, probably in shallow water) belongs without 



doubt to the same genus as the rare Arctic form Stegocephalus 



ampulla. It seems to differ from it mainly (1) in the greater 



relative length of the peduncle in both the superior and inferior 



antennas, (2) in the subchelate form of the anterior gnathopoda, 



(3) in the shortness of the rami of the three posterior pairs of 



pleopoda. 



Genus Amaryllis, (novum). 



Superior antennas with a well-developed appendage. Mandibles 

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

 Anterior gnathopoda sub-pediform. Posterior gnathopoda 

 imperfectly subchelate. Pami of the fourth and fifth pleopoda 

 stylif orm ; those of sixth pair broad-lanceolate. Telson squamiform, 

 cleft. 



Amaryllis macrophthalmus, sp. nov. (PI. VULL, fig. 3.) 



Eyes vertically elongated, sub-crescentic. Superior antenna) 

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



