Amphipoda with notes on a species of Isopoda. 455 
(2) Hind margin of the third pleon segment smooth, without 
serrations . . . . . .. T. briio, Stebbing. 
T. ausiralis. Barn. 
r. novae-hollandiae, Stebb. 
T. marlensii, Weber 
(0) Second thoracic hmb (first gnathopod) of the male wilh a 
meral lobe. 
(1) Serrations on the hind margin of the second joint of the 
last thoracic limb few (about 10-12) and distant . . T. parvhpinosa, Webei. 
, ^ . T. kempii, W.M.T. 
(2) Serrations on the hind margin of the second joint of the 
last thoracic limb very numerous and closely set . . T. malaycnsis, W.M.T. 
This table will indicate the relationships of the two new species described in this 
report and the characters by which they may be distinguished from their allies. 
Talorchestia, sp. 
Locality. —Si Dong Ding, Tai-Hu, China, under vegetable debris on shore, one 
female. 
Remarks. — This specimen does not appear to show any appreciable differences 
from females of T. japonica, described earlier in this paper, but in the absence of 
male specimens I prefer not to give it a name. 
Family AORIDAE. 
Genus Grandidierella, Coutiere, 1904. 
Grandidierella megnae (Giles). 
[PI. XIX, figs. 1-12.] 
G Stebbing, 1908 
G. megnae, Chilton, IQ21 (with synonymy). 
Localities. — Whangpoo River, between Shanghai and Wusung, 5-7 metres, 10- 
xii-15, twenty-two specimens. 
Whangpoo River, ca. 10 mi. below Shanghai, 5-7 metres, io-xii-15, one specimen. 
Walker Island, Tai-Hu, China, close inshore, 5-xii-i5, three specimens. 
Tai-hu, a little N.E. of Si Dong Ding, China, 3 metres, 2-xii-i5, nine specimens. 
Off Si Dong Ding, China, 2^ metres, 2-xii-i5, nine specimens. 
Remarks. — The following points of differences are to be noted between the 
Chinese specimens and the Indian specimens described by Stebbing : — 
1. In Indian specimens the second joint of the peduncle of the first antenna 
is equal in length to the first and three times as long as the third. 
In Chinese specimens the second joint of the peduncle of the first 
antenna (pi. XIX, fig. i) is one- third longer than the first and twice as 
long as the third in the male and one-quarter as long as the first and 
two and a half times as long as the third in the female. 
2. The second joint of the second thoracic limb (first gnathopod) of the 
male (pi. XIX, fig. 5) is stouter in the Chinese than in the Indian 
specimens. 
