Rey. A. M. Norman’s Notes on British Amphipoda. 115 
_ distally, palm rather waved, wholly devoid of teeth or tu- 
bercles. Telson (fig. 4) forming three fourths of an ellipse, 
sides gradually sloping to the well-rounded extremity. Length 
7 millim. 
Leucothoé tmparicornis differs from the described British 
species in the very small size of the antenne, in the narrow 
hand and short nail of the first gnathopods. The form of 
the hand approaches that of ZL. furina, but the palm has no 
teeth ; the telson also distinguishes it from the species just 
named, 
Hab. St. Magnus Bay and Balta Sound, Shetland (A. WZ. N.). 
Genus II. Eustrus, Kroyer, 1845. 
Eusirus longipes, A. Boeck. 
1860. Eusirus longipes, Boeck, Forh. ved de Skand. Naturf. p. 656. 
1862. Eusirus helvetie, Bate, Cat. Amphip. Crust. Brit. Mus. p. 155, 
ple xx. fio, 2 
1862. Eusirus helvetie, Bate & Westw. Brit. Sessile-eyed Crust. vol. i. 
. 207. 
1866. Eusirus bidens, Heller, Amphip. des Adriat. Meeres, p. 32, pl. iii. 
fig. 19. 
1868, Eusirus helvetie, Norman, Last Report Dredging Shetland Isles, 
Brit. Assoc. Rep. p. 281. 
1872. Eusirus longipes, A. Boeck, De Skand. og Arkt. Amphip. p. 504, 
pl. xix. fig. 4. 
First two segments of pleon with a central dorsal tooth ; 
hinder margin of third segment denticulately serrated through- 
out its entire length, serrations of lower portion pointing 
upwards, but those near the summit pointing downwards *. 
Length of thigh of last three pereeopods measuring scarcely 
more than one fifth the length of the attenuated limbs. 
Telson cleft to not more than one third of its length. Thighs 
of last three pereeopeds strongly serrated posteriorly. Length 
14 millim. 
Hab. Shetland; Skye; Firth of Clyde; off Berwick 
(A. M. N.) ; Aberdeenshire (Dawson) : Mus. Norm. 
Distribution. West Norway (G. O. Sars): Mus. Norm. 
South Norway (G. O. Sars); Bay of Biscay (Prince de 
Monaco) ; Adriatic (Heller). 
* In Eusirus cuspidatus, Kroyer (from Greenland, ‘ Valorous’ Exped. 
1876, and off Halifax, Nova Scotia (S. I. Smith): Mus. Norm.), the 
hinder margin of third segment is also denticulately serrated ; but in that 
species the denticulations throughout the entire length point upwards. 
S* 
