Alien Registration- Wilton, Ella V. (Fort Fairfield, Aroostook County)

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New tarantulas from the Southwestern States

journal articleIn this paper are presented diagnoses of seven new species of mvgalomorph spiders, one of which, represents the new genus Hesperopholis. The other species are placed in Delopelma. We are indebted to Dr. W. P- Cottam for making the photographs reproduced 0 11 the first three plates. All of these are taken at the same scale, which is a little less than natural size, the ratio being about 9:11. Excepting the holotypes of Delopelma radinum D. simulatum, and I), moderatum, which are in the American Museum of Natural History, the tvpes are in the University of Utah collection

Spiders of the Raft River Mountains of Utah

journal articleAn expedition to the Raft River Mountains, located in northwestern Utah near the Idaho and Nevada borders, was sponsored by the departments of Zoology and Botany of the University in September, 1932. The authors of this paper devoted themselves primarily to the collecting of spiders of which a total of 135 species were taken. These represent fifteen families and eighty genera. Seven genera and twenty seven species are described as new

North American spiders of the genera cybaeus and cybaeina

journal articleThe frequency with which members of the Agelenid genus Cybaeus appeared in collections made by the authors in the mountainous and timbered sections of the Pacific coast region and the representations therein of various apparently undescribed species led to the preparation of this review of the known North American forms. One species heretofore placed in Cybaeus is made the type of a new genus Cybaeina. Most of our species occur in the western states; and it is probable that further collecting in this region will bring to light a considerable number of additional forms

Miscellaneous new American spiders

journal articleA number of new species of spiders have been accumulating in the collection of the University o f Utah for several years. The naming and characterizing of a part of these species is the purpose of this paper. Those considered here arc all from the United States, except one from Canada. The types are in the collection o f the University o f Utah

A new genus in the family agelenidae

journal articleMr. J. H. Emerton in 1911 described a new species of spiders under the name Liocranum calcaratum, mistakenly placing it in the family Clubionidae (Trans. Conn. Acad. Arts and Sci., vol. X V I , p. 402, pi. V, ff. 4 -4 f ) . This disposition o f the species was natural in view of its resemblance to certain members o f the Clubionidae in the spining of the legs; but the presence of a distinct third claw' clearly excludes it from that association. The detailed structure shows that it belongs in the family Agelenidae and that it has close affinity with Cybaeus and related genera. It represents, however, a distinct and heretofore unrecognized genus which is described below

A new genus of theridiid spiders in which the male develops only one palpus

journal articleThe discovery of the male of Theridion fordum Keyserling, reveals characteristics for that species which set it off as genericallv different, from Theridion proper. The erection of a new genus is thus found necessary for this species; and several other species which are closely related to it naturally follow it in this separation. It is quite apparent that mixtum Cambridge, oblivium Cambridge, passivum Keyserling, and minor n. sp. are congeneric with fordum. Theridion migrans Keyserling probably belongs here also, and possibly morulum Cambridge, rostratum Cambridge, and purum Cambridge

Spiders of the Georgia region of North America

journal articleThis paper has developed from a study undertaken initially to determine, s far as possible from available evidence, the proper application of the _ames based by Walckenaer upon Abbot' s drawings of the spiders of Georgia. The validity of these names has not been seriously questioned since the rediscovery of the Abbot drawings in the Kensington Museum of Natural History at London in 1887 and the discussion among zoologists that ensued immediately thereafter. Most arachnologists have continued in agreement with Prof. T. Thorell who said in a letter to Dr. McCook published in 1888 in the Proceedings of the Acad, of Nat. Sci. of Philadelphia: " As to me, I do not entertain the least doubt that you and Professor Leidy, Lewis and Dali are right, and that the earlier names should in all cases be adopted. The law of priority must be respected, and is the only one that prevents arbitrariness and that gives stability to nomenclature. I think then, that in all such cases, in which Walckenaer's species can, with tolerable certainty, he recognized, his names should be preferred to those more lately published, even if such names are more commonly used, or the species better described or figured under the newer names.

On several new American Spiders

journal articleHerein are described a few species of spiders, from the United States, which were determined as new, while labeling up part of the collection. In the triton-sexpunctcitus complex of the Dolomedes, it was noted that at least four species are represented. Two of the sjjecies were assigned to triton and scxpunctatus, for which the types do not exist; one is identified as scopularis C. Koch, and the other is here described as new. The types arc in University of Utah Collection

Spiders collected by L. W. Saylor and other, Mostly in California

journal articleIn the present paper are listed some 150 species of spiders composing a collection submitted to us bv Mr. L. W . Saylor, now of the United States Bureau of Biological Survey, who personally took most of the specimens. Of the species represented in the collection, 24 are new, and three of these are made types of new genera. Twenty-two of the new specics are herein described, the other two being dealt with in another paper to appear elsewhere. All specimens are retained in the collections of the University of Utah