242 
ARACHNIDA. 
from Monferrato, as well as a list of 80 others from the Basso-Monfer- 
rato, all known species. (5) Notes on the useful mimicry of the coloration 
and form in spiders, with interesting remarks on the adaptation of colours 
to the surrounding circumstances of different spiders, and its utility. 
Randall, W. S. Notes on Arachnida. Ent. viii. pp. 32-36. 
Rondani, C. L’acaro del Baco da seta e I’acaro del Gelso. Bull. Ent. 
Ital. ii. [1870] pp. 166-168, pi. i. figs. 14-18 [c/. Zool. Rec.. viii. 
p. 208]. 
Characterizes a new genus and two new species of Acaridea. 
Simon, Eugene. Bull. Soc. Ent. Fr. (5) v. 
Describes some Algerian spiders of new and known species, 
pp. Ixii. & Ixiii., 11 species of French and Spanish Salticides^ pp. 
cxii.-cxiv., and some other new species of French spiders, pp. cxlix. & 
cl. He also gives a note (pp. cxcvi. & cxcvii.) on spiders of Constanti- 
nople; of 22 species, 15 are found near Paris and 7 are common 
to all the Mediterranean regions ; 2 new species of Phalangidea are 
here described. A list is also given, p. ccvi., of Arachnids from the 
Grotte des Baux (Mouths of the Rhone) belonging to the Aran E idea 
(2 spp.), Acaridea (Isp.), Pseudo- Scorpiones (1 sp.), the last being new. 
. Les Arachnides de France, ii. Contenant les Families des 
Urocteidce, Agalenidce^ Thomisidce^ et Sparassidce. Paris : 1876, 
pp. 1-350, pis. iv.-viii. 
This volume continues the work [c/. Zool. Rec. xi. pp. 221 & 223], 
30 genera (of which 6 are new) are characterized. Urocteidce, 2 ; Age- 
lenidce^ 11 ; Thomisidce^ 14 ; and Sparassidce, 3. The whole contain 180 
species, 69 being described as new to science. A figure (either full or 
dissectional) is given of one or more species of each of the genera. Ana- 
lytical tables of species are given, separate for each sex, and similar 
tables, in most cases, for the genera in the different families. 
- — T-, Bedel, L., &. Liste Gen^rale des Articules Cavernicoles de 
I’Europe. J. Zool. iv. Arachnides par E. Simon, pp. 8-23. 
Contains a list of all the Arachnids at present known to inhabit 
caverns and similar places in Europe ; omitting, however, such as ordi- 
narily live in cellars and dark rooms. Simon observes that a com- 
plete absence of eyes has only yet been observed in two spiders, Stalita 
tcenaria, Schiodte, and Hadites tegenarioides, Sch., that the more or less 
confirmed atrophy of the eyes in other species follows a uniform course, 
and confirms his opinion concerning the distinct office of the two kinds 
of eyes (nocturnes et diurnes) with which all the crepuscular, or noc- 
turnal, spiders are provided. The central eyes of the first row, which, in 
these species, are alone designed for diurnal vision disappear first. In 
some genera (as Linyphia) their gradual disappearance can be followed 
according as the species are more or less lucifugous, while the darkness 
has but little influence on the size, position, and number of the other 
eyes ; in types more extensively modified than Linyphia^ and more 
essentially cavern- dwellers, the diurnal eyes do not appear at all ; and 
the nocturnal eyes also, at times, undergo a more or less complete arrest 
