Cape Cod cranberries

Webb, James

doi:10.5962/bhl.title.20200

Cited by 2 publications

(3 citation statements)

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“…5.4 Pustules or their derivatives; double or single minutely pustulate dorsal pilaster; no papillate verge (Allogona, Cryptomartzx, Trilobopsis?). Webb (1970a) discovered this character state. The paired dorsal pilasters are only weakly developed in C. germana (FMNH cat.…”

Section: 3mentioning

confidence: 90%

“…Webb (1974) suggested that this verge existed in the ancestor of Triodopsis, found no vestigial traces of it in any of the many species of that genus, despite intensive search. Vespericola also has a verge, but it differs in being a simple, rounded, smooth-surfaced cone with a terminal pore and without terminal papillae; it is directed forward, rather than backward, during copulation (Webb, 1970b). Surrounding the ejaculatory pore of Trilobopsis loricata loruei (FMNH 97994) are outgrowths that could be considered a third type of polygyrid verge, apparently illustrated by Webb (1970d: plate 27, Fig.…”

Section: 3mentioning

confidence: 99%

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Polygyrid land snail phylogeny: external sperm exchange, early North American biogeography, iterative shell evolution

Emberton¹

1994

Biological Journal of the Linnean Society

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A fresh assessment of reproductive behaviour and anatomy, combined with new allozyme data, results in a phylogenetic hypothesis for the 23 polygyrid genera that differs substantially from previous attempts. Analyses based on this phylogeny suggest that (a) evolutionary transition from internal to external sperm exchange occurred only once in polygyrids, with unusual functional intermediates still extant; (b) polygyrid biogeographic history paralleled that of plethodontid salamanders, with hypothesized vicariance events at about 145, 120, 65 and 40 MA, and, dispersal events at about 55 and 40 MA; and (c) iterative shell evolution occurred despite a phylogenetic constraint on ontogenetic whorl-expansion rate.

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Section: 3mentioning

confidence: 90%

Section: 3mentioning

confidence: 99%

Polygyrid land snail phylogeny: external sperm exchange, early North American biogeography, iterative shell evolution

Emberton¹

1994

Biological Journal of the Linnean Society

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“…4 Epstein solo observo esta afeccion en jovenes de 15 a 19 anos 5 y Webb en solo 3 casos menores de 15 anos, de un total de 6.500 pacientes operados de HDL. 6 La degeneration progresiva del disco parece ser un factor esencial en la genesis de la hernia discal, condition que se producin'a con los anos. 7 Esto explicaria lo infrecuente de la HDL en ninos.…”

Section: Comentariounclassified

La hernia discal lumbar en el niño

M¹

1987

Rev. chil. pediatr.

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A case of lumbar (L5-S1) intervertebral disc hernia (LIDH) in an eleven year old girl is described. Her main symptoms were lumbar pain, tenderness in the posterior thigh area and weakness of the flexor muscles of the foot of the right leg. Computed axial tomography (CAT) confirmed the diagnosis and mielography discarded other spine abnormalities, This disease is rare in children and its symptoms and signs are similar to those present in adults. Radiologic examination of the spine including CAT and contrast mielography are very important in order to exclude other more frequent spinal lesions such as tuberculosis, tumors, piogenic infections and malformations of vertebral structures. Medical management is the treatment of choice, surgery being indicated only in cases of treatment failure or when there is evidence of radicular neurological deficit. (Key words: intervertebral disc hernia, lumbar, first sacral root compression).

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Cape Cod cranberries

Cited by 2 publications

References 0 publications

Polygyrid land snail phylogeny: external sperm exchange, early North American biogeography, iterative shell evolution

Polygyrid land snail phylogeny: external sperm exchange, early North American biogeography, iterative shell evolution

La hernia discal lumbar en el niño

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