278 bulletin: museum of comparative zoology. 



TuNABo/ gen. nov. 



Cephalothorax longer than broad, moderately convex, the posterior 

 declivity abrupt; thoracic stria long. 



The anterior row of eyes weakly procurved; median eyes farther 

 from each other than from the laterals, a little larger than the laterals. 

 Posterior eyes in two distinct rows as in Lycosa, much larger than 

 those of the anterior row. Area of median eyes decidedly wider than 

 long and much wider behind than in front. Clypeus much narrower 

 than area of median eyes, only a little exceeding the diameter of an 

 anterior median eye; sub vertical. 



Labium wider than long. 



Lower margin of furrow of chelicera with four teeth. 



All tarsi, and the anterior metatarsi at least in part, scopulate. 

 Anterior tibiae armed beneath with five pairs of spines, the distal 

 pair small and the others very long; the metatarsi armed beneath 

 with three pairs of spines. 



Genotype. — Tmiabo peruvianus sp. nov. 



Easily distinguished from Trechalea, the preceding genus, in having 

 the anterior eyes in a procurved row, and from Hygropoda, also 

 occurring in the Andean region and a closely related genus, in the 

 relatively much larger posterior eyes, in the much narrower clypeus, 

 and in having leg IV longer than leg I. 



TUNABO PERUVIANUS, sp. nOV. 



Plate 22, fig. 7-9. 



A sharply defined median longitudinal stripe over entire length of 

 carapace and abdomen, this limited on each side on the carapace by a 

 black stripe below which is a testaceous stripe of about the same 

 width, this enclosifig some dark dots, the margins darker; on the 

 abdomen the median stripe is limited on each side by a dark brown 

 stripe, the sides and venter of abdomen pale, brownish grey with 

 numerous small dark dots. Sternum yellow or dilute light brown 

 minutely spotted with black and with a median longitudinal black 

 line on caudal half. Labium and endites yellow or testaceous. 

 Legs brown, the coxae and the femora beneath paler; femora marked 

 above with longitudinal blackish lines and the legs elsewhere minutely 

 spotted and streaked with dark. Chelicera each with a black longi- 

 tudinal stripe down its front face. 



' Gosiute iuna, straight, and nabo, a mark. 



