168 ARANEIDEA. 
separation of the former from the latter by a pedicle which can be distinctly seen from 
above. The legs are usually very slender and only very weakly spined, those of the 
third and fourth pairs being always quite slender and often slashed longitudinally 
with black, exactly as are those of many of the ant-like species of the family 
Clubionide. 
The subfamily is divisible into three distinct groups, distinguished by the relative 
size of the legs, the arrangement of the eyes, and the form of the carapace :— 
A. Legs i., ii., iii., and iv. equal or subequal in slenderness, armed with few and 
weak spines. 
1. Carapace very deeply constricted behind the eyes, viewed in profile. Abdomen 
of male more or less enclosed within a dorsal and ventral chitinous plate, 
sometimes fused, sometimes open along the sides. . - - - - + + + SYNEMOSYNER. 
2, Carapace not deeply constricted behind the eyes. Abdomen of male with a 
small chitinous dorsal plate only . . 2. 1. ee ee ee ee ee 6 Toxee, 
B. Legs i. and ii., or i. only, more or less incrassate, sometimes the femora only 
thickened ; the spines, at all events beneath the tibize and protarsi i., longer 
and stouter. 2. 0... ew ee ee ee ee ee ee ee.) 6SYNAGELER. 
Of the various genera adopted, probably three fall into the first group, namely 
Synemosyna, Simonella, and perhaps Jola. The second group includes Toxeus, Mar- 
tella, Sarinda, Bocus, Zuniga, Emertonius, and Erica; and the third group, probably, 
Synageles, Keyserlingella, Hermosa, Leptorchestes, Fluda, Marengo, Bellota, Semosa, 
Descanso, Paradametas. 
Of these genera, seven only are known to me from Central America, Synageles, 
Keyserlingella, Paradameetas, Erica, Martella, Simonella, and Toxeus, whose distin- 
guishing characters wiil be found below under their respective subfamilies. 
Group SYNEMOSYNEZ. 
These spiders may be recognized by the very deep constriction in the middle of both 
the carapace and abdomen, the latter, however, being far more deeply constricted in 
the male. In this sex, too, the chitinized cuticle of the abdomen extends much 
further, both above and below, than in the female. The eyes are situated in four rows, 
somewhat approaching in this respect those of the genus Lyssomanes. The coxee and 
trochanters of the fourth pair of legs are very long; the sternum is very long and 
narrow ; while all four pairs of legs are, in both sexes, of the same degree of slenderness, 
their relative length being 4, 3, 1, 2, and the palpi of the female are only very 
slightly enlarged. 
One genus alone is known to me. 
