J a coddington (15 risultati)

Hardcover. Condizione: Very Good. Vol. 3. Number 36 in Annals of Mathematics Studies. Rebound by the library using orange buckram. No DJ. Binding is tight, text clean. From the Table of Contents: Asymptotically Autonomous Differential Systems-Markus; Fixed Point Theorem-Kyner; Repeating Solutions for a Degenerate System-Marcus; Invariant Surface Theorem for a Nondegenerate System-Marcus, etc. 285pp.…

Hardcover. Condizione: Very Good-. No Dust Jacket. Owners name, in ink, on front of pamphlet. ; ARANEOCLADA: ARANEOIDEA, DEINOPOIDEA; 10.0 X 778,740,086.0 X 1.1 inches; 52 pages.

xiv,129pp. with dust jacket (sl.rubbed). top edge spotted.

Aspergillus Nidulans (S. A. Biochim. Biophys. Acta 110) 1965. S. 312 - 318. m. Tab. br. -3) Sonderabdruck.

Condizione: As New. Unread book in perfect condition.

Condizione: New.

4 pp., 2 figs, gr. 8.

New taxa: Epeirotypus chavarria n. sp., Naatlo n. gen., Naatlo sutila n. sp., Baalzebub n. gen., Baalzebub baubo n. sp., Epilineutes n. gen. 96 pp., 220 figs, 8 maps, br. 4.

Condizione: New.

Condizione: As New. Unread book in perfect condition.

Paperback. Condizione: Brand New. 128 pages. 11.00x8.00x0.25 inches. In Stock.

This phylogenetic analysis of 31 exemplar taxa treats the 12 families of Araneoidea (Anapidae, Araneidae, Cyatholipidae, Linyphiidae, Mysmenidae, Nesticidae, Pimoidae, Symphytognathidae, Synotaxidae, Tetragnathidae, Theridiidae, and Theridiosomatidae). The data set comprises 93 characters: 23 from male genitalia, 3 from female genitalia, 18 from cephalothorax morphology, 6 from abdomen morphology, 14 from limb morphology, 15 from the spinnerets, and 14 from web architecture and other behaviour. Criteria for tree choice were minimum length parsimony and parsimony under implied weights. The outgroup for Araneoidea is Deinopoidea (Deinopidae and Uloboridae). The preferred shortest tree specifies the relationships ((Uloboridae, Deinopidae) (Araneidae (Tetragnathidae ((Theridiosomatidae (Mysmenidae (Symphytognathidae, Anapidae))) ((Linyphiidae, Pimoidae) ((Theridiidae, Nesticidae) (Cyatholipidae, Synotaxidae))))))). The monophyly of Tetragnathidae (including metines and nephilines), the symphytognathoids, theridiid-nesticid lineage, and Synotaxidae are confirmed. Cyatholipidae are sister to Synotaxidae, not closely related to either the Araneidae or Linyphiidae, as previously suggested. Four new clades are proposed: the cyatholipoids (Cyatholipidae plus Synotaxidae), the 'spineless femur clade' (theridioid lineage plus cyatholipoids), the 'araneoid sheet web builders' (linyphioids plus the spineless femur clade), and the 'reduced piriform clade' (symphytognathoids plus araneoid sheet web builders). The results imply a coherent scenario for web evolution in which the monophyletic orb gives rise to the monophyletic araneoid sheet, which in turn gives rise to the gumfoot web of the theridiid-nesticid lineage. While the spinning complement of single pairs of glands does not change much over the evolution of the group, multiple sets of glands are dramatically reduced in number, implying that derived araneoids are incapable of spinning many silk fibers at the same time. 99 pp., 48 figs, gr. 8.…

4°. M. 228 Abb. IV, 96 S. OBr. (Smithsonian contrib. to zoology 422). Sprache: Englisch 0 gr.

80 p., 103 figs, disbound (no covers). Published in: Zoological Journal of the Linnean Society.