PARAMARPISSA. 253. 
a pale central longitudinal dorsal band, with a lateral submarginal black band extending from the anterior 
margin to the spinners. Legs unicolorous red-brown, those of the first pair the darkest. 
General structure very similar to that of Marpissa, but the carapace is distinctly narrowed in front. Leg i. 
incrassate, and having beneath a single cusp on the inner side. Patella i. with 2—2 short stout cusps 
beneath. Coxe i. almost in contact over the sternum. 
- Palpus very short and stout, the bulb much enlarged and the tarsus bent downwards towards the inner side 
of the femur; tibia and patella short, the patella half as long as its diameter, the tibia a little longer 
than the diameter. Tibial spur stout, strongly curved downward at its apex, forming a sharp black spine. 
The base of the tarsus on the outer side is produced into a stout blunt curved spur, lying between the 
bulb and the tibial spur. The bulb itself is divided into an anterior and a posterior lobe, the former 
developed on the inner side into a very stout long spine, widely curved, directed quite across the broad 
tarsal sheath, its aculeate apex curving forward. 
Hab. Mexico, Teapa (H. H. Smith). 
Group PHIDIPPEZ. 
First pair of legs with the three pairs of spines beneath the tibiee situated in the apical half of the segment at 
any rate, often in the apical third or even fourth (this is the case in both sexes, but the spines on the 
inner side of tibia i. are those which should be taken into consideration, those on the outer side being, as 
a tule, slightly wider apart). The females are distinguishable, with very few exceptions, by a deep 
rounded or “.-shaped notch in the middle of the posterior margin of the vulval area. 
The genera which have been included in this group may be distinguished by the 
following characters, though it is doubtful how far some of the distinctions will be 
found to be permanent :— 
A. Carapace and abdomen more or less flattened. 
1. Tibia i. more or less, sometimes very much, enlarged. Tibia and 
protarsus iv. without spines. 
a. Maxille not dilate at the outer angle, nor truncate at the apex, 
but normally and evenly rounded. Tibia i. not fringed with 
hair beneath. 
a’, Tibia i. very dilate, very little longer than broad, chelate. 
Sternum not produced into a conical point behind. Spines 
beneath protarsus i. short . . . . . . . . . ... CHELIFEROIDEs, gen. nov. 
b'. Tibia i. not nearly so dilate, at least three times longer than 
broad, not chelate. Sternum produced into a conical point 
behind. Spines beneath protarsusi. very long . . . . Rupra, Peckh. 
b. Maxille dilate at the outer angle and squarely truncate at the 
apex. Tibia i. densely fringed with hair beneath . . . . Asutasuta, Peckh. 
2. Tibia i. not enlarged, five or six times longer than broad, parallel- 
sided. (Maxillee dilate at the outer angle and squarely truncate 
atthe apex.) . . . . 2. ee ew ee we ee). )~6CANOKA, Peckh. 
B. Carapace and abdomen more or less convex. 
1. Posterior row of eyes scarcely wider than the anterior row. 
(Abdomen without any central dorsal triangular pale spot.) 
a. Legs i. and ii. in both sexes without fringes of hair on the 
sides or beneath . . . . . . . . . . . . .) . «© «~Merarniprppus, gen. nov. 
