236 
ARACHNIDA. 
the male organs, spermatozoids, stages of egg-developnieut, and seminal 
receptacles of various species. 
Brady, George Stewardson. A review of the British Marine Mites, 
with descriptions of some new species. P. Z. S. 1876, pp. 301-311, 
pis. xli. & xlii. 
The author describes and records 12 species, of which 4 are new. 
Cambridge, O. P. Encyclop£edia Britannica (9th edn.), pp. 271-299, 
Article Arachnida.” Edinburgh: 1875, 4to, woodcuts. 
Gives a general view of the position of the Arachnida in relation to 
the rest of the animal kingdom ; the Insecta, Myriapoda, Arachnida, 
and Crustacea being considered as so many sub-classes of the class Can- 
dy lopoda or Arthropoda. The muscular, circulatory, digestive, and 
generative systems of the Arachnida are briefly detailed in a general 
summary of their external and internal organization. The sub-class 
Arachnida is divided into seven orders— 1, Acaridea ; 2, Pycnogonidea ; 
3, Phalangidea ; 4, Solpugidea ; 6, Scorpionidea ; 6, Thelyphonidea ; 7, 
Araneidea. The external and internal structure of each of these orders 
is shortly detailed, with some general observations on habits, habitat, 
&c., and a notice of some of the chief works on the dilferent orders. 
, On some New Species of Erigone. Part.i. P. Z. S. 1875, pp. 
190-224, pis, xxvii.-xxix. 
Describes, and figures portions of, 25 new species from Europe, 
Algiers, and Morocco, the greater part European. 
Part ii. Tom. cit. pp. 323-336, pi. xliv. Describes, and figures por- 
tions of, 9 new species belonging to Neriene, Bl. ; all are from France. 
A list is also appended of 46 other known species, mostly French. 
— — . On some New Species of Erigone from North America. Tom. cit. 
pp. 393-405, pi. xlvi. • 
Records 11 species, of which 9 are described as new. All are from 
the neighbourhood of Boston, Massachusetts. 
— . On a New Genus and Species of Trap-door Spider from South 
Africa. Ann, N. H. (4) xvi. pp. 317-322, pi. x, . 
The genus is named {Moggridgea) after the late J. T. Moggridge, 
author of Harvesting Ants and Trap-door Spiders.” The spider is found 
at Uitenhage, South Africa, where it forms a short tubular nest in the 
interstices of the bark of trees, closing it with a hinged lid, or ‘ trap- 
door.’ This situation of the nest is as yet, unique, and the lid is of a 
distinct type from those hitherto known. Cf. note by H. Lucas, in 
Bull. Soc. Ent. Fr. (6) v. p. eexx. 
, Notes and Descriptions of some New and Rare British Spiders. 
Tom, cit. pp. 237-260, pi. viii. 
18 species of various families and genera are recorded, 8 of which are 
described and figured as new. 
, List of Araneidea and Phalangidea collected from October, 1871, 
