NO. 1223. SOME SPIDERS FR OM A RIZONA—BA NKS. 583 



side eyes, quadrangle of median eyes about one and one-half as high 

 as broad. Anterior legs quite stout, hind pairs much more slender; 

 metatarsi and tarsi T and II with fscopula.s; tibia I with one spine 

 below near base, one near middle, and a pair at tip; metatarsus I with 

 one pair near base. Abdomen rather thick, truncate at base, more 

 than one and one-half times as long as broad; epigynum shows a large, 

 oblong corneus area, in the hind part of which is an elliptical cavity, 

 nearly filled by a plate from in front. 



One female, Catalina Springs, April. 



Type.—Q^i. No. 5425, U.S.N.M. 



Family CLUBIONID^. 



CHEMMIS UNICOLOR, new species. 



Length of female, 14 mm. 



Cephalothorax reddish brown, rather darker in front; mandibles 

 dark red-brown; sternum yellow-brown, dark on sides; legs yellowish 

 brown on base, darker and more red-brown beyond; al^domen pale 

 brown above and below, darkest near tip. Cephalothorax rather broad 

 in front, moderately elevated; mandibles large and stout. Posterior 

 eye-row longer than anterior eye-row, slightly procurved; posterior 

 median eyes round, a little more than diameter apart, nearly twice 

 diameter from slightly smaller posterior side eyes; anterior eye-row 

 nearly straight, anterior median eyes hardly as large as posterior 

 median ej^es, scarcely diameter apart, about diameter from scarcely 

 larger anterior side eyes; quadrangle of median eyes rather higher 

 than broad, broader behind than in front. Three teeth on hind margin 

 of fang-groove. Legs rather stout, but long, IV a little longer than 1, 

 and more slender. Five pairs of spines under tibia I, metatarsus I 

 with 3 pairs, in each case the apical pair is short. All tarsi, metatarsi 

 I and II, and apex of III and IV, ai'e scopulate. Two spines above 

 on tibia III. Lip half the length of maxillte, hollow truncate at tip. 

 In front of spinnerets is a curious truncate lip. 



One female from Santa Kita Mountains, June. 



Tyi)e.—C?ii. No. 5426, U.S.N.M. 



Differs from the one species of the genus in having anterior median 

 eyes not larger than anterior side e3'es, but otherwise agrees ver}' well 

 in structure. 



TRACHELAS TRANQUILLA (Hentz). 



Several specimens from Catalina Springs, April, May; and Santa 

 Rita Mountains, May, June. 



ANYPH.«NA, species. 



Immature specimens from Santa Rita Mountains, June. 



