Azilia (Palmgren, P. 1980)
| Notice: | This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see page history). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions.
If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly. This page should be cited as follows (rationale):
Citation formats to copy and paste
BibTeX: @article{Palmgren1980Ann.Zool.Fennici17, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Palmgren1980Ann. Zool. Fennici17">{{Citation See also the citation download page at the journal. |
Ordo: Araneae
Familia: Tetragnathidae
Name
Azilia Palmgren, P., 1980 – Wikispecies link – Pensoft Profile
- Azilia Palmgren, P., 1980, Ann. Zool. Fennici 17: 161-161.
Description
As shown in three earlier papers (Palmgren 1978 a & b, 1979), all species of the family Tetragnathidae studied by me differ from all species of other araneomorph spider families that I have dissected in the following respects: They have a posterior unpaired dorsal caecum (behind the dorsal apodeme) and lateral caecal branches extending not only to the coxae of the walking legs but also to the chelicers and, with the possible exception of Tetragnalha (Eugnalha) striala, to the pedipalps; these lateral branches protrude between the tergo-coxal muscles as pouches which extend more or less along the margin of the cephalothorax and contain guanine crystals. None of the species of the family Araneidae, including the genus Meta, share these features with the tetragnathids. The conclusion that Mela should not be included in the family Tetragnathidae (cf. Locket et al. 1974) is in accordance with Homann's views, founded on the anatomy of the eyes. Professor H.W. Levi pointed out to me that the anatomy of the genera Azilia, Cyrtophora and Nephila would be of interest as an argument in a discussion of their systematic position and the distinction between the subfamilies of Araneidae (incl. "Tetragnathinae"), and he kindly provided me with some specimens (9$) of Azilia affinis (O.P.-Cambr.) and Nephila clavipes (L.) from Florida, and of Cyrtophora moluccensis (Doleschall) and Nephila maculala (Fabr.) from New Guinea (Wau). The preservation of Azilia was excellent. In the other specimens, the brain and the cheliceral and pedipalpal ganglia in particular had suffered maceration, but all essential features of the musculature and the intestinal organs could be clearly distinguished. When necessary, two specimens were compared.
Taxon Treatment
- Palmgren, P.; 1980: Some comments on the anatomy of spiders, Ann. Zool. Fennici 17: 161-161. doi
This treatment was originally uploaded by Plazi, compare this treatment on Plazi. Unless this treatment has been substantially changed on Species-ID, Plazi requests to maintain a link back to the original repository.
