Zoo-L. -Vol.. I.] BA NKS—MEXICA N ARA CHNIDA . 211 



HERSILIID^. 



18. Tama mexicana Cambr. 

 Hersiha mexicana Cambr., Biol. Cent. -Am., Arach.-Aran., p, 107. 



One immature specimen, probably from San Jose del 

 Cabo. 



oonopid^;. 



19. Gamasomorpha rufa, sp. nov. 



Plate XIII, Fig. 12. 



Length 1.8 mm. Cephalothorax, sternum, and abdomen reddish, except 

 the soft rim, which is yellowish; legs and palpi yellowish; the hard parts 

 punctulate, and everywhere scantily clothed with moderately long hairs. 

 Cephalothorax once and a third as long as broad, narrow in front, high in 

 second third, convexly sloping to the clypeus which is very low, behind 

 sloping at first concavely and steeply, then more gradually and convexly, no 

 dorsal groove, S. E. equal, touching; P. M. E. larger, touching each other, 

 and but slightly separated from the S. E. ; posterior row distinctly recurved; 

 maxillae inclined over the short lip; sternum a little longer than broad, trun- 

 cate between the hind coxa;. Legs short; femora thickened at base; tarsi much 

 shorter than metatarsi, without spines, but quite hairy; coxa; subglobose. 

 Abdomen oval, once and a half as long as broad, depressed, wholly covered 

 above by a horny shield, and another below reaching from base to near the 

 spinnerets; a horny semicircle at base of the spinnerets; a dark stripe each 

 side near furrow. 



Two examples ; no locality. 



CAPON \T>M. 



20. Nops ovalis, sp. nov. 



Plate XIII, Fig. 6. 



Length ? 7.5 mm., i 5 mm. Cephalothorax and sternum reddish yellow; 

 legs, palpi, and mandibles paler; abdomen pale gray; spot surrounding the 

 eyes black. Cephalothorax long, oval; head barely narrowed in front; eyes 

 small, about their diameter apart; sternum once and a half as long as broad. 

 Legs with fine, long hairs; anterior pairs short and stout; femora much 

 thickened; tarsi about one-half as long as metatarsi, and not near as long as 

 breadth of femur I; the metatarsi straight and not divided; the tarsi biar- 

 ticulate. 



A few specimens; San Jose del Cabo and Sierra San 

 Lazaro, Sept. 



