March, 19^1.1 Cn AM HERLI .V : LlNVPIIIinAE OF ALASKA. 37 



Genotype. — .-i. punUana n. sp. 



Includes also A. tubcrcUa, noin. nov. pro Gongylidium tuberosum 

 Em., preoccupied by G. tuberosum ( Blackwall). 



Aigola pauliana mw species. Piatt- III, figs. 3, 4. 



Mate. — Carapace dusky over fulvous, appearing brown. Sternum more 

 fulvous, darker about margins. Legs like sternum. Abdomen black. Head 

 gently convexly rising behind eyes. Posterior row of eyes straight or very 

 slightly procurved ; the medians in the type are slightly more (about one 

 eighth) than their diameter apart, and between 1.4 and 1.5 times their diame- 

 ter from the laterals; slightly smaller than the laterals. .Anterior row of eyes 

 recurved ; median eyes close together, less than their radius apart, a little 

 more than their diameter (eleven and one seventh) from the laterals, smaller 

 than the latter, the ratio of diameters being about as 7: 10. Clypeus three 

 times higher than the diameter of a lateral eye and considerably higher than 

 length of median eye area. Area of median eyes a little longer than wide 

 (12: 11) and wider behind than in front in ratio 11:8. Upper margin of the 

 furrow of chelicera bearing six teeth, a very small one appearing at distal 

 end of series as it is present in tubcrella and one at proximal end which is 

 large though smaller than the adjacent one. Details of the palpal organ are 

 shown in the figs. 3 and 4. 



Length, 3.2 mm. 



Length of cephalothorax, 1.57 mm.; width, 1.16 mm. 



Length of tib. -f- pat. I, 1.55 mm.; of tib. -f pat. 1\', 1.6 mm. 



Length of tib. L i-35 mm.; of tib. I\', 1.4J mm. 



Aigola tuberella new name. Plate III. figs. 5, 6. 



Gongylidium tuberosum Emerton. Trans. Conn. .Acad., 1915, 20, p. 150, PI. 



5, figs. 5-56. 



MaJe. — Posterior row of eyes a little recurved. Eyes larger and nearer 

 together than in pauliaua, the medians about three-fifths their diameter apart, 

 and 1.4 times their diameter from the laterals. .Anterior row of eyes very 

 .slightly recurved; median eyes smaller than laterals in about ratio 9:11 or 

 4 : 5, nearly their radius apart and one and one-fourth their diameter from the 

 laterals. Clypeus about three and one-half times as high as diameter of an 

 anterior lateral eye. .Area of median eyes as broad as long, wider behind 

 than in front in ratio 7 : 5. 



L'pper margin of furrow of chelicera with four teeth. 



Length of cephalothorax, 2 mm.; width, 1.44 mm. 



Length of tib. -f pat. I, 1.98 mm. F. of tib. -f pat. I\'. 2.16 mm. Length 

 of tib. I, 1.59 mm. F. of tib. IV, 1.75 mm. 



Locality. — Labrador: Battle Harbor. (C. W. I.cng. » 



The type is larijer than that of piittUaiia. l>ut the cephalothorax 

 and leps agree nearly in i)roportions. The i)Osterior median eyes arc 



