Zool.— Vol. I.] BANKS— MEXICAN ARACHNIDA. 243 



narrowed in front; posterior eye-row slightly recurved; P. M. E. less than 

 their diameter apart, about as far from the S. E.; A. M. E. much smaller, 

 slightly separated, quadrangle of M. E. higher than broad; no claw at tip ot 

 palpus. Legs moderate; femur I about as long as the cephalothorax, clothed 

 with stiff bristles, and above on tibia; I, II, and III, two spines, only one 

 seen on tibia IV; metatarsus I shorter than tibia I. Lower anterior border 

 of mandibles with three or four small teeth; sternum slightly longer than 

 broad, narrowly truncate between the hind coxa;, sides rounded. Abdomen 

 once and one-fourth longer than broad, base rounded, apex pointed, moder- 

 ately convex above. Epigynum has two horny divaricate processes. 



One female; Tepic, Nov. 



121. Tmeticus denticulatus, sp. no v. 



Plate XIV, Fig. 29. 



Length $2.5 mm. Cephalothorax yellowish brown, blackish on the seam; 

 eyes on black spots; the mandibles more reddish; legs and palpi pale yellow- 

 ish; sternum blackish; abdomen black, a few pale narrow chevrons above 

 the spinnerets. Cephalothorax nearly once and a half as long as broad, not 

 much narrowed in front; posterior eye-row about straight; P. M. E. their 

 diameter apart, and about as far from the S. E.; A. M. E. a little smaller than 

 other eyes, less than their diameter apart; quadrangle of M. E. as high as 

 broad; no claw to tip of palpus; anterior lower border of mandibles with five 

 quite prominent teeth; sternum a little longer than broad, truncate and de- 

 flexed between the hind coxa;, sides rounded. Legs not very long; femur I 

 shorter than the cephalothorax; metatarsus I barely shorter than tibia I; all 

 with bristles; a spine on all patella;, two on tibiae I, II, and III, only one seen 

 on tibia IV above. Abdomen oval, once and one-fourth longer than broad, 

 higher than usual, almost subglobose. 



Two examples; Tepic, Nov. 



122. Pocobletus mexicanus, sp. nov. 



Plate XIV, Fig. 18. 



Length ? 2.8 mm. Cephalothorax and legs pale yellow brown, a black 

 seam on former; mandibles brighter than cephalothorax; sternum more 

 blackish; abdomen dark grayish or blackish, darkest on venter, no pale 

 marks, except a few narrow chevrons just above the spinnerets. Cephalo- 

 thorax broad, much narrowed in front; posterior eye-row about straight; P. M. 

 E. nearly their diameter apart, scarcely so far from the S. E.; A. M. E. much 

 smaller, and half their diameter apart; quadrangle of M. E. about as broad 

 behind as long; mandibles moderate, with two or three small teeth on lower 



