rae ARANEIDEA. 
minute cuspules. Palpal bulb short, piriform, sinuous. depressed at the apex, not much attenuate, with 
very minute serrations beneath. ‘Tibia of palpus with four or five stout spines on the inner side. 
Q. Total length 58 millim. Carap. 24x21; ceph. area 15:5. Oc. tumulus 3:25 x 2°5, Legs: i. 77; ul. 71; 
iii. 66; iv. 83. Pat.+tib. i. 24; iv. 23. Tib. i. 14; prot. i, 125. Tib. iv. 15; prot. iv. 20°5. 
Tarsus i. 9-5; tarsus iv. 9°5 millim. 
@. Mahogany-brown, clothed entirely with rufous-brown hairs. Abdomen clothed with darker brown 
pubescence and long rufous-orange hairs. 
Carapace gibbous in the cephalic area, profile view. Lateral impressions broad and strongly marked. Fovea 
straight, transverse, deep. Superior pair of spinners as long as the sternum (including labial plate). 
Protarsus i. scopulate to the base, not spinous at the base. Tibiwi. andii. with a few spines. Protarsi iii. 
and iv. with numerous spines beneath, iii. scopulate halfway, iv. scopulate only at the extreme apex. 
Tibiee iii. and iv, with a few spines beneath. Tarsal claws with eight or nine small teeth. 
Hab. Mexico, Teapa in Tabasco (H. lI. Smith); Guatemata, Chicoyoito (Sarg, von 
Lurckheim), Cubilguitz, Coban, Salama, Rabinal (Sarg). 
A single adult male (no. 410) was taken by Mr. Sarg at Chicoyoito. This specimen 
was found by Herr von Turckheim in his house. An adult female (no. 379) was also 
found by the same gentleman on his bed, fallen from the thatched roof. Called by the 
natives “araiia de caballo,” who believe that they injure horses and mules by biting 
them above the hoof, which drops off and renders the animal useless for a year or 
more. Mr. Sarg says, ‘‘ I have myself seen the effects, but am suspicious as to the cause.” 
He further remarks that the late S. Bernoulli noticed “arafas de caballo using 
short horsehair for lining their nests in the ground.” ‘This is probably an error of 
observation, for the short hairs seen were doubtless those shed by the spider itself. 
At Salama and Rabinal, says Mr. Sarg, where “arafias de caballo” abound, little boys 
capture them by “ bobbing” with a pellet of wax on a string. ‘The mandibles become 
fixed and the “arafia” is withdrawn from the burrow; subsequently the captives are 
set to fight in pairs, and afford “excellent sport.” 
Three apparently immature examples of this same species are recorded by Mr. Sarg— 
one from Coban (no. 1254), one from Cubilguitz (no. 796), and one (no. 1525) without 
definite locality. Unfortunately the collector has not noted the conditions under which 
these specimens were captured. 
Mr. Smith makes the following note:—“ No. 532. Teapa, March 14, under a log, 
shady place, with egg-case (enclosed).” 
_ Iam unable to separate this specimen from examples of what I take to be the young 
of E. longipes, though from the note furnished by Mr. Smith one would suspect it to 
be adult. If this is the case, more examples will be required before the distinctive 
characters can be diagnosed. The legs of no, 532 present more distinctly the double 
pale line on the patellee and tibie than the others, which, as young specimens, I refer 
to L. longipes; so that it is not at all improbable that the former may eventually turn 
out to belong to a separate species. 
