Geology and Natural History. 601 
the chief, and the Flora Cestrica the memorial, died on the 11th 
of May, at the age of 86 years. 
13. Lube-building Amphipoda ; by 8. I. Smrra.—In examining 
recently an alcoholic specimen of a species of Xenoclea, I no- 
ticed a peculiar opaque glandular structure filling a large portion 
of the third and fourth pairs of thoracic legs, which in most, if 
d 
sponding legs in hithoe maculata, Ptilocheirus pinguis, Cera- 
pus rubricornis, Byblis Gaimardi, and a species of Ampelisea, 
a 
lized 
large part of the gland. In these genera the remarkable elonga- 
tion of the two distal segments in the third and fourth pairs of 
legs is perhaps a special adaptation to enable them to reach back 
over the deep epimera. 
The examination of fresh specimens will doubtless show these 
Structures much more full 
¥. 
New Genus of Asellide 
ion 
Westwood, in their late work on British je-eyed Crustac 
vol. ii, p. 313. This organ is present’ and well developed in Jera 
this family : car 
fully figuted by G. O. Sars (Hist. Nat. des Crustacés d’eau Douce 
) J occurs In 
