594 ARANE.E OF NORTH AMERICA — MARX. 



29. impavida Thovell. — As this specific name has heen previously used for a Lycosa by Walkenaer 

 it has to be changed to intrepida. 



30. Lycosa nidifex Emerton (or rather Marx) is, as Emerton himself states, synonymous with aren- 

 icola Scudder. Why Emerton has retained my name for Scudder's older one I can not understand. 



31. Tarentula modesta has been used by Keyserling previous to Thorell, therefore Thorell's modesta 

 has to be changed into pudens. 



32. Ocyale.— Looking over the many illustrations of the European species of Ocyale, it strikes me 

 that they differ considerably from those of our country in the position of the posterior eye row. "While 

 in the European species the four posterior eyes are actually placed in two rows and the distance 

 between them is much larger than the diameter of one of the eyes, the four eyes in the American spe- 

 cies are placed in such a position that a line drawn through the superior margin of the posterior mid- 

 dle eyes will run through the disc of the post, lateral eyes. The position of the anterior eyes is the 

 same as in those from Europe except that the anterior middle eyes appear a little farther removed 

 toward the front than in the European species. 



33. Dolomedes tenebrosus Emerton.— It appears to me that Emerton, in describing the male of Dolo- 

 tnedes tenebrosus Hentz, had under observation the male of sexpunctatus ,• for the specimens of this 

 species in my own collection and in that of Dr. W. H. Fox of this city correspond in every detail 

 with Emerton's description of his tenebrosus. Further I hold that Emerton's D.fontanus is the real 

 male of tenebrosus because our tf tenebrosus has all the characters of Emerton's fontanus. Now the 

 male of what I consider sexpunctatus— tenebrosus Em.— has the markings of the female sexpunctatus 

 in a more or less distinct degree ; moreover, both sexes have been caught together. On the other hand 

 our cf tenebrosus= (fontanus Em.) is found quite frequently with the female, while the female of Em- 

 erton's fwttanus is yet unknown. 



34. leopardus Hentz.— As this name is preoccupied by Walkenaer I propose the name Hentzii for it. 



35. protervus Walk.— Walkenaer has used this specific name twice. For that described last I sub- 

 stitute the name petulant. 



36. multivagus Hentz.— This is also preoccupied by Walkenaer; I substitute, therefore, vagabandus 



37. Wala Keyserling.— Mr. Peckham has made a mistake in asserting that Wala albovittata Keyser- 

 ling is synonymous with Icius albovittatus. This author described both, and the descriptions differ 

 so widely that it must have been an oversight of Peckham. 



