176 . LIVERPOOL BIOLOGICAL SOCIETY. 
form of this species (the largest about one inch long), 
taken on the shore, Colwyn Bay, April and May, 1887. 
The young differ materially from the adult form in wanting 
the dorsal carina, and in the form of the last uropods. 
Mr. Stebbing considers Grayia «imbricata, Bate and 
Westwood, to be this young form. , 
Stenothoe (Montagua) marina, Bate. One specimen 
from Fleetwood, 7 fathoms (R.D.D.). 
Metopa Alderi, Bate. Penmaenrhos, April, 1887. Pen- 
maenmawr (I.C.T.). 
*Ampelisca equicornis, Bruzelius. Several specimens at 
(II). This species is nearly allied to A. tenwcornis, Lille, 
of which, as Sars+ has pointed out, Tetrommatus typicus, 
Sp. Bate, and A. Gaimardi, Sp. Bate, are the male. The 
female may be distinguished by the length of the upper 
antenne, which are much longer than the peduncle of the 
lower, and both sexes by the absence of the tufts of hairs 
on the under side of the peduncle of the upper antenna, 
and the upper side of that of the lower antenne. Boeck 
says that the back is not carinate in this species; but in a 
large female specimen among the above a slight carina in 
the pleon can be seen. The length of this specimen is 
about 14 mm. Boeck gives 5 mm. as the length of a 
female with ova. 
*Ampelisca levigata, Lille, = A. Belliane, Bate and 
Westwood. One specimen at (II). Several in the 
‘“‘muzzled”’ dredge, Colwyn Bay, 3 fathoms, 24th May, 
1887. It has the habit of floating on the surface of the 
water. 
*Haploops tubicola, Lillje. One specimen at (II), found 
in sand taken home for examination (for shells) by Mr. 
F., Archer. 
Photis (Eiscladus) longicaudatus, Bate (?). One female 
t ‘“‘Oversigt af Norges Crustaceer.” 
