172 ARANEIDEA. 
a. Palpi incrassate and compressed. Tibia i. with Q—2—-2 2-2 spines 
beneath. Cephalic region well marked, but not precipitous behind. 
Trochanter iv. only half the length of coxa iv. Sternum at least 
three times as long as broad. Cephalic quadrangle wider behind ; 
small eyes midway between laterals. Abdomen constricted. . . ~- Toxeus, C. Koch. 
b. Palpi incrassate, very hairy, not compressed. Tibia 1. with 2—2—2 
spines beneath. Cephalic region abruptly precipitous behind. Tro- 
chanter iv. quite two-thirds as long as coxa iv. Sternum scarcely 
more than twice as long as broad. Cephalic quadrangle not wider 
behind; small eyes nearer to the posterior laterals. Abdomen only 
very slightly constricted . 2. 6 2 eo 8 8 ee et ee Marrewia, Peckh. 
I am unable to include Erica in the table for want of sufficiently well-preserved 
examples. 
TOXEUS. 
Toreus, C. L. Koch, Die Arachn. xiii. p. 18 (1846). 
Type 7. mawillosus, C. Koch. Java. 
The spiders belonging to this genus are truly cosmopolitan, being found in Europe, 
Asia, Java, the Philippines, Burmah, Ceylon, Madagascar, Zanzibar, the United States, 
and Central America. The following are the characters of the genus :— 
Eyes in three rows; cephalic quadrangle of eyes broader than long, wider behind ; posterior laterals slightly 
larger than anterior laterals. Carapace twice longer than broad; cephalic region flat, in profile ; 
thoracic region convex. Mandibles of the male very variable, usually as long as the carapace, but often 
either shorter or longer; horizontal, flattened above, depressed towards the apex, with a long sinuous 
fang. Mandibles of the female short and vertical. Coxa i. scarcely longer than coxa iv., coxa il. being 
shortest and more or less globose; trochanter iv. longest, slightly more than one-half longer than 
coxa iv. Sternum more than three times longer than broad. Legs 4, 1, 3, 2. Tibia i. with 
2—2—2-—2--2 spines beneath; protarsus i. with 2—2 spines beneath; spines beneath protarsi ii. 
variable; legs iii. and iv. without spines. Abdomen pediculate, often slightly constricted before the 
middle; in the male sex with a median anterior and posterior coriaceous dorsal integument. Spinners 
short, anteriors and posteriors equal in length. Palpi of female broad and compressed. 
Nore.—Numerous species were originally included by Latreille under his genus 
Salticus (1805); amongst these were S. formicarius and S. scenicus. In 1806 
Walckenaer placed them all under the name Attus. ‘There was no definite selection 
of a type for either, nor any eliminating process leaving a type naturally selected, until 
1810, when Latreille himself definitely selected Araneus scenicus as the type of Salticus. 
The species known to me may be distinguished as follows :—- 
Males. 
a. Palpi short, only two-thirds as long as the carapace. Mandibles usually 
very long (very variable), compressed, with two (often one only) stout 
teeth at the apex beneath; 3 or 4 single separate teeth along the upper 
margin of the fang-groove, 7 or 8 small teeth along the lower margin at 
