544 ARANEIDEA. 
6°. Protarsi i. and ii. with a central apical spine 
beneath. 
a“, Eyesin two rows. . . . + « . . « AGELENIDE (p. 332). 
6“. Eyes in threerows . . . . . . . . Puisaurrpm (p. 303). 
6°. Tibia of male palpus without an apical ex- 
ternal spur. 
a’. Eyes of anterior row subequal or centrals 
sometimes larger. Labium and maxille 
shorter in proportion. . . . . . . . Lycosip# (p. 814). 
6”. Central eyes of anterior row much smaller. 
Labium and maxille longer in proportion . Oxyoprip# (p. 338). 
II. Tarsus iv. set with numerous serrate bristles, or with a 
single series of serrate spines beneath. 
a’, Tarsus iv. set with a single series of stout, curved, 
serrate spines beneath. . . . . . . . . . « HERIDIIDZ (p. 371). 
bY, Tarsus iv. set with numerous serrate bristles. 
a’, Tibize and protarsi i. and ii. furnished with a series 
of widely separate, very long spines, the interspaces 
being set with a row of shorter curved spines, 
increasing in length distally . . . . . . . . Mimerip/@ (p. 409). 
6". Tibize and protarsi not so furnished. 
a’. Legs shorter and stouter; Maxille not inclined 
overlabium . .... . . . . . . . ARGYOoPID# (p. 412). 
6°. Legs very long and slender. Maxille inclined 
over labium ...... .. . . . . PHoLcips# (p. 865). 
bb. Hyes 6. 
a’, Mandibles not soldered together at their base. Fang of 
mandible long and slender . . . . . . 
b. Mandibles soldered together at their base. Fang of 
mandible short, but weak. Colulus present or absent . Scyroprpa# (p. 48). 
Lerronetip@ (p. 45). 
The following genera or species have been added to the Mexican or Central- 
American fauna during the course of publication of the present volume, or have 
been accidentally omitted in our enumeration :— 
THERAPHOSIDA. 
Citharacanthus, Pocock, Ann. & Mag. Nat. Hist. (7) viii. p. 551 (1901), n. g., for 
Eurypelma longipes, F. Cambr. antea, p. 21. 
Dugesiella crinita, Pocock, loc. cit. p. 552.—Mexico, Guanajuato. 
Aphonopelma, Pocock, loc. cit. p. 553, n. g., for Eurypelma seemanni, F. Cambr. 
antea, p. 26. 
