206 Transactions. — Zoology. 



1879. Nicea rubra. 



1879. G. M. Thomson, Trans. N.Z. Inst., vol. 11, 



p. 236, pi. 10, %. B 3. 

 1886. Thomson and Chilton, Trans. N.Z. Inst., 



vol. 18, p. 144. 



Body as in H. prevostii, but rather more slender, and only 

 from 10-12 mm. in length. First antennas reaching consider- 

 ably beyond the peduncle of the 2ud pair ; flagellum many- 

 jointed. Second antennae from half to two-thirds as long as 

 the body ; flagellum very many jointed. The coxal plate of 

 the 1st gnathopoda has the posterior margin nearly straight ; 

 the propodos is oblong and the palm slightly oblique in both 

 sexes. The 2nd gnathopoda in the males have a large evenly 

 ovate propodos, the palm very obhque, and occupying two- 

 thirds of its lower margin. 



Hah. — This species occurs in similar localities to the last 

 — indeed, all the species of Hyale live in the littoral zone, 

 and most commonly between tide-marks. 



I have it from Dunedin and various points on the east 

 coast of the South Island. 



3. Hyale lubbockiana, Sp. Bate. 



Delia Valle has included the species described by Sars 

 (Crust, of Norway, p. 27) as H. luhhockiana under H. pontica. 

 In this I am convinced he is quite wrong. Sars's figures are 

 very excellent and convincing ; unfortunately, Delia Valle's 

 are misleading. 



The svnonymy of the species is to be found in Delia Valle 

 {I.e., p. 526). 



The form of the body is very similar to that of the last 

 species. The antennae resemble those of H. prevostii. The 

 1st gnathopoda have the posterior margin of the coxal plate 

 almost entire, with only the trace of an apophysis. In the 

 females the propodos is rectangular in form, and is as long as 

 the two preceding joints ; in the males the carpos is trans- 

 versely greatly developed into a deeply projecting ciliated 

 plate. The 2nd gnathopoda in the males have the basos 

 rather dilated ; the propodos is very lai'ge and subquadrate, 

 the palm being nearly transverse. The propoda of the pereio- 

 poda have one or two large rugose spines near the extremity ; 

 the dactyla are strong, without any sensory seta. 



Hah. — One specimen, which I include with hesitation in 

 this species, was taken in a rock-pool on the Ocean Beach, 

 near Dunedin. 



4. Hyale chiltoni, n. sp. 



Body rather slender, 9-11 mm. long; coxal plates rather 

 deep. The 1st antennae are slightly longer than the peduncle 



