1899.] AND SPIDERS TROM TROPICAL WEST APBICA. 861 



/ ^THBODES, gen. nov. 



Allied to Aranceihra, but differing in the following particulars : — 



a. Four median eyes eleTated on a rounded tubercle : lateral 

 eyes also on a tubercle ; clypeus equal in height to half 

 the length of the ocular quadrangle, which is longer than 

 broad; abdomen only o\erlapping the posterior third of 

 the carapace up to the median tubercle, its anterior and 

 lateral margins armed with smooth rounded tubercles ; its 

 upper surface furnished with about a dozen symmetrically 

 arranged Tarious-sized tubercles ^throdes. 



h. Ocular tubercles low, ocular quadrangle slightly wider than 

 long ; clypeus very low, less than half the ocular quadrangle ; 

 abdomen overlapping the posterior two thirds of the 

 carapace, armed marginally with strong spines, without 

 tubercles above ArancBthra. 



-(Ethrodes mammosa. (Plate LT. fig. 2.) 



Colour of abdomen a nearly uniform ocbre-yellow ; cephalotborax 

 darker. 



Abdomen twice as broad as its median length ; its anterior border 

 sinuous, mesially emarginate, armed with seven tubercles, not 

 including the large tubercle on the antero-lateral angle ; a large 

 tubercle on the postero-lateral angle and two smaller lateral 

 tubercles in front of it ; the posterior boirder widely convex, with a 

 series of vertical tubercles just above it and one pointed posteriorly 

 close to the large postero-lateral tubercle ; the sigilla deeply im- 

 pressed and mostly subcircular; tubercles arranged as shown in 

 Plate LV. fig. 2. 



Vulva consisting of a semicircular depression in front and a 

 narrow transverse plate above the genital aperture. 



Measurements in millimetres. — Length of abdomen 12, width 22"5 ; 

 length and width of carapace 7 ; length of 1st leg 18. 



Loc. Benito River (C. L. Bates). 



TetbaCtNATha Latr. 

 Tetbagnatha clavigera Simon. 



Tetragnatha clauigera, Simon, Ann. Soc. Ent. Fr. 1887, p. 272. 

 Loc. Benito River (G. L. Bates). 



One female specimen referred to this species, recorded by Simon 

 from Assinie. 



Family OxYOPiDiE. 

 G-enus Peucetia Thorell. 



Peucetia lojStgipes, sp. n. (Plate LVII. fig. 17.) 



Colour (in alcohol). Carapace pale green, thoracic portion some- 

 times tinted with brownish, a few black spots marking the position 

 of setsE on the head ; side of head with an indistinct or distinct 

 vertical fuscous stripe running to the basal spot on the mandible 

 and continued as a sbort stripe on the uj^)|3er part of that appen- 



Pboc. Zool. Soc— 1899, No. LVI. 56 



