Chilton. — On N.Z. Amphipoda and Isopoda. 269 



than the propodos, having the inner edge armed with six 

 strong spiniform setas. 



Length about 3mm. 



Colour brownish, more or less closely covered with darker 

 dots and stellate markings. 



Hah. Port Chalmers and Brighton, near Dunedin, between 

 tide-marks. 



A full description of this species, with nuinerous figures, 

 has been sent to the Annals and Magazine of Natural 

 History. 



Pseudsega punctata, G. M. Thomson. 

 Pseudcega jwwzciato, Thomson and Chilton, Trans. N.Z. 



Inst., vol. xviii., p. 153. 



This species was originally taken on Ocean Beach. It 

 has since been taken by Mr. Suter at New Brighton, near 

 Christchurch, feeding on decaying specimens of Mactra 

 ceqnilatera. His specimens agree closely with Mr. Thom- 

 son's description. 



Sph^roma (?) egregia, sp. nov. 



Body rather convex, smooth. Total length of pereion and 

 pleon slightly greater than twice the greatest width. Head 

 transverse, nearly three times as broad as long ; first segment 

 of pereion as long as any two of the succeeding, the others 

 subequal in length. Pleon longer than the five preceding 

 segments of the pereion, triangular, the extremity produced 

 backv.'ards and w'ith the sides rolled in below so as to form a 

 kind of funnel, a round opening being left at the end. Pleon 

 distinctly divided into two segments, the first produced back- 

 wards on each side into the terminal segment and bearing a 

 suture on each side. Uropoda with the outer ramus much 

 smaller and shorter than the inner, which extends as far back 

 as the cavity, beneath the pleon, but not to the end of the 

 funnel. Antenna? slender, inner (upper) a little shorter than 

 the outer, which reaches backwards nearly to the end of the 

 first segment of the pereion. Legs subequal, short. 



Colour whitish, with darker markings (slightly red in dried 

 specimens). 



Length about 3mm. 



Hah. Akaroa : two or three specimens only. 



The character of the pleon in this species is very peculiar, 

 and in this it differs in a marked degree from the normal 

 Syhccromce, but I forbear increasing the confusion that 

 already exists in that group by the addition of another genus, 

 in the hope that some one will soon undertake a revision of 

 the whole of the Sj)haeromidac. 



