ARAGHNIDES— AKANEIDES— TUB1TELARIJ3. 69 



1. TiTANfECA INGENUA. 

 PI. 11, Figs. 29, 32 ( 9). 



Cephalothorax oval, about half as long again as broad, largest a little 

 behind the middle, the front not produced but regularly rounded, the lateral 

 curve being slightly convex throughout its course, and thus showing no 

 line of sejiaration between the cephalic and thoracic portions. Arrange- 

 ment of eyes not determinable. Cheliceres stout. Palpi moderately stout, 

 equal, about as long as the cephalothorax, the terminal joint roundly pointed 

 at tip. Abdomen plump, subrotund, at least four or five times larger than 

 the cephalothorax, being- more tlian twice as broad and fully twice as long 

 as it, slightly more tapering at the base than at the apex, only half as long 

 again as broad, and of a uniform tint, or possibly a little duskier along the 

 medio-dorsal portion. Legs moderately slender, short, subequal, abun- 

 dantly furnished with hairs, which seem (conspicuously in one specimen, 

 No. 13520, less distinctly in others) to be more abundant laterally than 

 upon the upper surface, and armed with many very long and slender only 

 slightly diverging spines on all the legs, and especially on the femora and 

 tibife of the two hinder pairs. All the specimens appear to be females. 



Length of body, O-G"""; of cephalothorax, 3.1"™; abdomen, GS"™ ; 

 breadth of cephalothorax, 2.4""°; abdomen, 5.9°""; length of first pair of 

 legs, S""; second pair, 7.6°"°; third pair, 7"°"; fourth pair, 8.75"". 



The shape of the cephalothorax and abdomen sufficiently sepai-ate this 

 species from the following, Avith which otherwise it agrees closely in general 

 appearance. 



Florissant. Four ?, Nos. 9792, 11203, 13520, 14031. 



2. TiTANOECA HESTEENA. 



Cephalothorax obpyriform, the cephalic portion a little produced and 

 tapering anteriorly less than the fully rounded thoracic part, and somewhat 

 truncate anteriorly, the front scarcely convex, the posterior border well 

 rounded; the widest portion of the cephalothorax is in the middle of the 

 thoracic part or of the hinder two-thirds of the whole, and it is nearly half 

 as long again as broad. Arrangement of eyes not detei-minable. Cheli- 

 ceres stout. Palpi moderately stout, equal, a little shorter than the cepha- 

 lothorax, the apical joint roundly pointed at tip. Abdomen ovate, about 



