xliv 
appendages are considered as the third, fourth and fifth pairs of 
legs, the two preceding pairs of elongated bifid organs being his 
fii'st and second pairs of legs. The anatomy of the group, as well 
as the sexual difi'erences, are admirably made out and illustrated 
in a series of twenty elaborate 4to plates. In the genus Diastjdis, 
Say (Cuma, Kroyer ; Alauna, Goodsir), the author has added six 
species to the thirteen already described by previous writers ; to 
the genus Leucon, one new species is added to the five already 
known; and to the genus Eudorella, Norman (Eudora, Sj). Bate), 
three are added to the four previously described. 
We are glad to welcome a new English worker in the Crustacea, 
the Eev. Thomas B. E. Stebbing having published the description 
of a new Sphseromid from Australia, and two new species of 
Arcturus from South Africa, in the 'Annals of Natural History' 
for August last. It is to be hoped that this gentleman, from 
his residence on our South coast, may be able to contribute 
to our knowledge of the small but much neglected species of 
Crustacea. 
We are indebted to the Rev. O. P. Cambridge for his unwearied 
labours in making us acquainted with the species of spiders 
(especially the exotic ones). During the past year he has 
described a number of new and very curious species from Ceylon, 
forwarded by Mr. Thwaites, and from St. Helena, captured by 
Mr. Melliss, in the Proceedings of the Zoological Society, and 
various new European species in the Journal of the Linnean 
Society. 
Dr. Koch's w^ork, ' Die Arachniden Australiens,' has now 
reached the ninth Lieferung, 4:to, Nuremberg, 1873. The figures 
are, it is to be regretted, b}' no means sufficiently characteristic. 
We are indebted to Mr. A. G. Butler for a series of articles on 
various interesting, although much neglected, groups of wingless 
insects, namely, the Myriopodous Glomeridae, Zephronia, and 
Spheerotherium ; the Arachnidous Gasteracantha, and Achro- 
soma ; and the remarkable genera Phrynus, Gonyleptes, Galeodes, 
and Thelyphonus : these have been published in our own Trans- 
actions, in the Proceedings of the Zoological Societj'-, and in the 
Annals of Natural History. The systematic arrangement and 
morphology, with especial reference to the structure of the 
mouth-organs and legs of the Phalangiidse, have formed the 
subject of an elaborate memoir by William Sorensen; published 
