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Fine structure of the eyes of jumping spiders. Journal of Ultrastructure Research Land, M. Structure of the retinae of the principal eyes of jumping spiders Salticidae: Dendryphantinae in relation to visual optics.
Journal of Experimental Biology Maddison, W. A revision of jumping spider species groups formerly placed in the genus Metaphidippus, with a discussion of salticid phylogeny Araneae. Pelegrina Franganillo and other jumping spiders formerly placed in the genus Metaphidippus Araneae: Salticidae. Bulletin of the Museum of Comparative Zoology.
Millot, J. Les diverticules intestinaux du cephalothorax chez les araignees vraies. Scheuring, L. Die Augen der Arachnoideen. Wanless, F. A review of the spider subfamily Spartaeinae nom. Araneae: Salticidae with descriptions of six new genera. This is an apparently undescribed species of Habronattus, near H. Maddison unless otherwise noted, and are not to be used without permission.
Correspondence regarding this page should be directed to Wayne Maddison at. Maddison, Wayne.
Jumping Spiders (Salticidae)
Jumping Spiders. Version 12 October under construction. Each ToL branch page provides a synopsis of the characteristics of a group of organisms representing a branch of the Tree of Life. The major distinction between a branch and a leaf of the Tree of Life is that each branch can be further subdivided into descendent branches, that is, subgroups representing distinct genetic lineages.
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This tree diagram shows the relationships between several groups of organisms. Partial classification of salticids based on Maddison , Introduction Jumping spiders Salticidae are easily distinguished from other spiders by their four big eyes on the face and four smaller eyes on top of the head. Characteristics The monophyly of the family Salticidae is best supported by the peculiar eye structure yielding excellent vision and corresponding vision-based behavior.
Salticid faunas of geographical areas By navigating along the tree above, you can wander through jumping spider diversity throughout the world although, at present, the coverage is highly biased towards New World salticids. Guides or overviews to the salticid faunas of the following restricted geographical areas are available: America North of Mexico Ecuador , South America. Discussion of Phylogenetic Relationships The phylogeny of salticids is poorly resolved.
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Some synapomorphies for the Salticine Division are: Short, anteriorly placed fovea Wanless, ; Small posterior median eyes Wanless, ; Cell bodies of anterior lateral eye photoreceptors displaced to side Blest, ; AME retinal strip sharply curved Blest and Sigmund, ; Six arms of pigmented glia surround secondary eye photoreceptors, as opposed to 4 or less in Lyssomanes and the spartaeines Eakin and Brandenburger, ; Blest and Sigmund, Maddison , added the following additional synapomorphies: Absence or great reduction of tarsal claw on female palpus; Gnathocoxal gland openings displaced medially A ; Posterior tarsal claws with far fewer teeth than anterior; Accumulation of slit sense organs and associated seta on a mound on the medial edge of the basal segment of the chelicerae B ; Intercheliceral sclerite small C.
Express routes The salticid section of the Tree of Life is most completely developed in the following areas: Habronattus : A remarkable genus whose males are elaborately colored and ornamented. You will find videos of their courtship behavior. Pelegrina : Some of the illustrations and diagnoses from the monograph of Pelegrina Maddison, are shown here. Other Names for Salticidae Jumping Spiders salticids. References Proszynski's Catalogue has many more salticid references. Information on the Internet Proszynski's Catalogue of Salticidae.
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SALTICIDAE Jumping spiders
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