AUSTRALIAN MALACOSTEACA. 285 



490. JEga. cyclops. 



JEga cyclops, Haswell, Proc. Linn. Soc. N.S.W., Vol. vi., p. 11. 



Surface finely punctured. Breadth about two-fifths of total 

 length. Segments of the thorax subequal, epimera of last five 

 produced behind to a point. Abdomen little narrower than the 

 thorax. Terminal abdominal segment sub-triangular the apex 

 rounded. Eyes confluent, occupying nearly all the upper surface 

 of the head. Uropoda with the outer ramus smaller than 

 the inner, narrow, ovate-acute ; the inner broad and obliquely 

 truncate ; an acute triangular process arising from the peduncle 

 extends beyond the middle of the inner rami. Length tV in. 



Port Jackson. 



Genus Bocinela, Leach. 

 Like Mgci, but with the eyes larger, meeting or almost meeting. 



491. Rocinela vigilans. A.M. 



EocineJa vigilans, Haswell, Proc. Linn. Soc. N.S.W., Vol. v., 

 p. 472, pi. xvi., fig. 2. 



Posterior thoracic segments broader than the anterior; epimera 

 produced behind to an acute point. Terminal segment shield-like, 

 smooth, margins entire, ciliated. Eye occupying all the upper 

 surface of the head, and extending on its under surface on either 

 side nearly to the margins of the buccal orifice. Antennae 

 separated at the base by a short frontal process ; the superior 

 about half the length of the inferior, the two basal segments of 

 its peduncle together equal in length to the third segment ; the 

 flagellum longer than the peduncle, composed of about fifteen 

 articuli ; inferior pair with the flagellum more than twice the 

 length of the peduncle. Maxillipedes with the terminal joints 

 plate-like, a strong spine at the internal and distal angle of the 

 first. Posterior thoracic limbs rather longer than the anterior 

 pairs ; femora long-ovate ; dactyla rather short. Kami of caudal 

 appendages unequal, the inner longer and broader than the outer; 

 both ovate, obtusely pointed, ciliated on the margins. Length 

 1 in. 



Holborn Island, near Port Denison, twenty fathoms. 



