6 Arachn, 
AKACHNIDA. 
belonging to the families Saltieidw (in which two new genera are charac- 
terized), Sphasidce^ Lycosidce^ Thomisidce, Epehidce, Gasteracantfiuhr., 
UlohoridcBj Therkliidcv, Fholcidce, Drassidoi (the last with two new 
genera), and Theraphosidce. Two species of ThelypJionidea^ 3 of ScorpU 
onidea (2 new), and 3 of Phalangidea (all new), are also recorded. 
Pt. X. records and describes, from various parts of the world, 1 new 
species of Solpuyidea (Tetracera, Sim.)» 7 species of Araneidea (6 new), 
and 4 of BcovpionUha (3 new). Of this last order, a new genus 
{Chcerilus) is characterized. 
(Simon, E.) Bull. Soc, Ent. Fr. (5) v. [1875] p. cxlix., vi. [1876] p. clxxx., 
and vii. pp. xli. & Ixxiv. et seqq. 
Describes 10 spp. nn. of various families of Araneidea from different 
parts of Franco, 
Tiiokell, T. Due Ragni esotici descritti. Ann. Mus. Genov, ix. 
[1876-7], pp. 301-310 (with woodcuts). 
Describes and figures two spiders of the families Epeiridce and Thomi- 
sidce, each being the type of a new genus. 
. Studi sui Ragni Malesi e Papuani. Oj). cit. x. pp. 341-634. 
Records and describes 107 species and 10 new genera belonging to 
various families, all (excepting a few from Macassar) found in Kandari. 
Ten species only had before been described from the Celebes Islands, 6 
of which are also contained in the collection here recorded. 93 species 
are described as new. 
. Descriptions of the Ai'aneoi collected in Colorado in 1875 by A. S. 
Packard, jun,, M.D. Bull. U. S. Geol. Sury. iii. pp. 477-529. 
Records 30 species of Araneidea, comprised in 18 genera, belonging to 
the families EpciruUe, Theridiidw, Scytoduhe, Agelenidce, Thonmidce, 
Lycosidce, and Saltiddce ; 22 of the species are described as new. Also 
1 species of Opiliones \^Phalangidea], described as new. 
. Sobre algunos Aracnidos de la Repfiblica Argentina. Period. 
Zool. Argent, ii. pp. 201-218. 
Comprises 6 known species of Bcorpiones, 3 species of Opiliones (2 
being new), and 1 sp. n. of Pseudo-scorpiones, from the Argentine 
Republic. 
. Etudes Scorpiologiques. Atti Soc. Ital. xix. [1876] pp. 75-272, 
In the introductory remarks, the different parts of Scorpions are ex- 
plained, and those parts are described, from which the essential characters 
are drawn (pp. 75-81). An analytical conspectus of families, sub- 
families, and genera is given (pp. 82-85) ; and at p. 86 is a diagram 
showing the author’s views on the relative positions of the different 
groups of the Arachnoidea. Pp. 87-102 are occupied by a discussion 
upon evolution and natural selection, from which it appears that the 
author adopts a certain form of the doctrine of evolution, but dissents 
from that of natural selection as the agent by which evolution has been 
chiefly effected. Fifty-seven species of Scorpionidea are described, 38 
being considered new, belonging to various families and genera. A list, 
