BY WILLIAM A. HASWELL, M.A., B.SC. 97 



IV. ASPIDOPHOREIA. 



This genus stands between Allorchestes and Nicea, differing from 

 both in the large size of the anterior coxse, from Allorchestes also 

 in the character of the telson, and from Nicea in the large size of 

 both upper and lower antennae, and in having the lower pair much 

 larger than the upper. 



V. Stegocephalus latus. 



(Plate XI., figs. 7-12.) 



Stegocephalus latus, Haswell, Proc. Linn. Soc, N.S.W., Vol. 

 IV., p. 252, pi. VIII., fig. 2. Cat. Aust. Crust., p. 227. 



I give here an improved figure of this species from a second 

 specimen from the same locality (Tasmania.) 



The second and third joints of the peduncle of the superior 

 antennae are both very short. The appendage consists of two 

 joints, a short basal and a long distal one, and is terminated by a 

 long slender spine with a few minute hairs round the base ; the 

 flagellum contains only four articuli, the first being much larger 

 than the others ; the first and second have each a long slender 

 spine connected with the distal end ; at the end of the last joint 

 is a small fasciculus of small, slightly hooked hairs. The inferior 

 antennae have six joints in the flagellum in the Tasmanian 

 specimens, but only three in a specimen from New South Wales, 

 which appears to be a variety of the same species. (1) 



VI. Ampelisca. australis. 



(Plate XII., figs. 7-16 and Plate XIII., figs. 1-4.) 



Ampelisca australis, Haswell, Proc, Linn. Soc, N.S.W., Vol. 

 IV.. p. 257, pi. VIIL, fig. 3. Cat. Aust. Crust., p. 235. 



( 1 ) By an error the word ' ' sub-clielate" was substituted for ' ' subpediform" 

 in the original description of tlie gnathpods. (Proc. Linn. Soc, N.S.W., 

 Vol. IV., p. 252, line 21.) 



7 



