216 Bulletin: museum of comparative zoology. 



of all metatarsi there are four spines in the lower row of bristles and 

 four also in the upper. On the posterior surface of metatarsus I 

 there are four spines in the lower row and four in the upper; on 

 metatarsus II there are four and three respectively; on III five and 

 three; and on IV, four and three. 



Abdomen, (Plate 10, fig. 1), covered with small scattered groups 

 of short, curved, stiff bristles and over whole surface uniformly with 

 very short hair. 



Spinnerets small, dark brown, removed from end of abdomen in 

 usual way. Colulus thin, pale, almost half as long as spinnerets. 



Female. Length, 18.3 mm. Length of cephalothorax, 7.3 mm.; 

 width, 7.6 mm.; width in front, 3.4 mm. 



fem. tib.+pat. met. tar. total 



Leg I 8 mm 10.5 mm. 5.8 mm. 3.8 mm. 28.1mm. 



Leg II 8.6 10.8 6.3 3.6 29.3 



Leg III 8.5 10.0 5.7 3.8 28.0 



Leg IV 8.2 9.8 5.8 3.8 27.6 



Tibia I, 7.8 mm. Tibia IV, 7 mm. 



Locality.— Santa Ana, 3,500 feet, August. (Type, M. C. Z. 165, 

 female). 



DYSDERIDAE. 



Ariadna hotchkissi, sp. nov. 

 Plate 10, fig. 4, 5. 



Carapace dusky brown or fuscous, not adeolate. Sternum, cheli- 

 cerae and coxae of palpi dusky, not areolate or only slightly so; labium 

 darker, nearly black. Abdomen beneath dark grey; above obscurely 

 mottled with partly confluent small areas of dusky purple, a more 

 solid median longitudinal stripe at base ; hairs long and short, numer- 

 ous, dark. 



Eyes large, the medians and laterals equal or very nearly so. Line 

 formed by two anterior lateral eyes shorter than the posterior in ratio 

 17:15. Median eyes contiguous, their diameter or a little less from 

 the laterals. Lateral eyes contiguous, (Plate 10, fig. 4). Clypeus 

 equal in width to the diameter of an anterior lateral eye or a little 

 narrower. 



Chelicerae short; smooth. 



