Last edited by Gunos
Tuesday, July 14, 2020 | History

2 edition of Studies on ophiocomid brittlestars found in the catalog.

Studies on ophiocomid brittlestars

Dennis M. Devaney

Studies on ophiocomid brittlestars

by Dennis M. Devaney

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  • 17 Currently reading

Published by Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.] in Washington .
Written in English

    Subjects:
  • Ophiocomidae

  • Edition Notes

    Issued also as Contribution no. 349 of Hawaii Institute of Marine Biology, University Of Hawaii.

    SeriesSmithsonian contributions to zoology, no. 51, Smithsonian contributions to zoology -- no. 51, etc.
    Classifications
    LC ClassificationsQL1 .S54 no. 51, etc., QL384.O6 .S54 no. 51, etc.
    The Physical Object
    Paginationv.
    ID Numbers
    Open LibraryOL26539283M
    LC Control Number78609994

    Studies on the Scottish marine fauna: Quantitative distribution of the Echinoderms and the natural faunistic divisions of the North Sea. 11 p., 4 figs, roy. 4to, wrps (Trans. Roy. Soc. Edinburgh vol. LVII part III no 32); IE € 7, Antitropical distributions and species delimitation in a group of ophiocomid brittle stars (Echinodermata: Ophiuroidea: Ophiocomidae). Naughton KM(1), O'Hara TD(2), Appleton B(3), Cisternas PA(4).

    Binomial nga ngaran; Ophiocoma dentata Müller & Troschel, Mga sinonimo; Ophiocoma brevipes var. insularia Lyman Ophiura squamata Lamarck Ophiocoma brevipes (H.L. Clark, ) Ophiocoma brevipes (H.L. Clark, ) Ophiocoma marmorata Marktanner-Turneretscher, Ophiocoma brevipes var. variegata Smith, Ophiocoma variegata E.A. Smith, Ophiocoma ternispina von . Global Biodiversity Information Facility. Accès ouvert et gratuit aux données de biodiversité.

    Post-larval skeletal changes and speciation in ophiocomid brittle stars. AAAS Miscellaneous Publication An ectocommensal polynoid associated with Indo-Pacific echinoderms, primarily ophiuroids. Occasional Papers Bernice P. Bishop Museum 23(13), 5 figs. Studies on ophiocomid britt1estars. I. of ophiocomid brittlestars. a, Scanning electron micrographs (SEM) of the peripheral layer of a dorsal arm plate from the brittlestar Ophiocoma wendtii showing the microlens array. b, SEM of an individual lens in O. wendtii. The functional region of this lens (L 0) closely matches the profile of a lens that is compensated for spherical aberration.


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Studies on ophiocomid brittlestars by Dennis M. Devaney Download PDF EPUB FB2

COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.

Studies on Ophiocomid brittlestars. I, a new genus (Clarkcoma) of Ophiocominae, with a reevaluation of the genus Ophiocoma (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: Dennis M Devaney.

Devaney, Dennis M. Studies on Ophiocomid Brittlestars. A New Genus (Clark-coma) of Ophiocominae with a Reevaluation of the Genus Ophiocoma. Smithsonian Contributions to Zoology,—Internal as well as external skeletal features support the decision to divide the shallow water tropical genus Ophiocoma into species groups.

Studies on ophiocomid brittlestars. A new genus (Clarkcoma) of Ophiocominae with a reevaluation of the genus OphiocomaCited by: Brittlestars in the genus Ophiomastix generally, but not always, can be recognized by modification (enlargement) of upper arm spines combined with an alternating number of spines from segment to segment which results in alteration in shape of the 1 Part 11 of a series of Studies on Ophiocomid Brittlestars.

Micronesica 14(2): 27} (~).Cited by: 6. Abbreviated development in brittle stars with vitellariae may be the outcome of heterochrony caused by an acceleration of metamorphosis. Studies on ophiocomid brittlestars.

A new genus. This study examined both the molecular phylogenetic relationships and the morphological characteristics of several species in the genus in order to characterise the unrecognised species.

The focal species clusters with O. brevipes, O. dentata, O. doederleini within a monophyletic clade supported by molecular data for the first time. Cobb and Hendler studied the reaction of O. wendtii to light stimuli by direct recording from the nerve cord in brittlestar arms Nervous response of light-adapted, dark brown pigmented brittlestars has been monitored after the chemical disruption (by bleaching) of successive layers of the tissue (Fig.

Figure 1: Peripheral layer of ophiocomid brittlestars. a, Scanning electron micrographs (SEM) of the peripheral layer of a dorsal arm plate from the brittlestar Ophiocoma wendtii showing the. This book is appropriate for medical students, optometry students, and eye technicians scrambling to learn the basics as quickly as possible.

The material within these pages is BASIC. Experienced residents and practicing doctors will find this series too easy. Phylogenomics, life history and morphological evolution of ophiocomid brittlestars Author links open overlay panel Timothy D. O'Hara a Andrew F.

Hugall a Paula A. Cisternas b Emilie Boissin c Guadalupe Bribiesca-Contreras a d Javier Sellanes e Gustav Paulay f Maria Byrne b g. Fecundity is low, with the largest females producing a maximum of about 7 eggs of small (mean diameter 80 μm) size.

Fertilized eggs develop into planktotrophic ophioplutei which are typical of the larvae of other species of ophiocomid brittle stars in morphology, rate of development and duration of planktonic period. Phylogenomics, life history and morphological evolution of ophiocomid brittlestars Author links open overlay panel Timothy D.

O'Hara a Andrew F. Hugall a Paula A. Cisternas b Emilie Boissin c Guadalupe Bribiesca-Contreras a d Javier Sellanes e Gustav Paulay f Maria Byrne b g. Mean intraspecific genetic distances (–) and mean interspecific genetic distances within genera (–) were concordant with previous echinoderm studies.

This study revealed that brittle‐star biodiversity is underestimated by 20% within SWIO and by >40% when including specimens from the Pacific Ocean.

Abstract. In this paper we examine the phylogeny and biogeography of the temperate genera of the Ophiocomidae (Echinodermata: Ophiuroidea) which have an interesting asymmetrical anti-tropical distribution, with two genera (Ophiocomina and Ophiopteris) previously considered to have a separate species in both the North and South hemispheres, and the third (Clarkcoma) diversifying in the.

In this paper we examine the phylogeny and biogeography of the temperate genera of the Ophiocomidae (Echinodermata: Ophiuroidea) which have an interesting asymmetrical anti-tropical distribution, with two genera (Ophiocomina and Ophiopteris) previously considered to have a separate species in both the North and South hemispheres, and the third (Clarkcoma) diversifying in the southern.

Mortensen T. Studies of Indo-Pacific Euryalids. Videnskabelige Meddelelser fra Dansk naturhistorisk Forening 96 (2): 1– Naughton K.M., O’Hara T.D., Appleton B. & Cisternas P.A. Antitropical distributions and species delimitation in a group of ophiocomid brittle stars (Echinodermata: Ophiuroidea: Ophiocomidae).

Brittle stars, a group of widespread benthic invertebrates (class Ophiuroidea), have been the target of recent studies addressing macroevolutionary processes, as an extensive phylogenomic dataset. Five thousand feet (1, meters) beneath the sea in the Gulf of Mexico, an ancient, coral forest spreads across the seafloor.

It’s a vast and eerie landscape void of light. But upon closer inspection a diverse array of critters—crabs, fish, sea stars and anemones—can be seen among the. Figure 1: Appearance and skeletal structure of ophiocomid brittlestars. a, Light-indifferent species Ophiocoma pumila shows no colour change from day (left) to night (right).

Devaney DM. Studies on ophiocomid brittlestars. I. A new genus (Clarkcoma) of Ophiocominae with a reevaluation of the genus Ophiocoma. Smithsonian .Sumner-Rooney et al. report extraocular vision in a brittle star, Ophiocoma wendtii.

Visual behavior is absent in O. pumila, despite its similar photoreceptor networks, as well as dark-adapted O. wendtii. The authors propose that chromatophores provide screening pigment in O. wendtii, conferring vision to a dispersed photoreceptor system.An Ophiomastix variabilis in uska species han Ophiuroidea nga ginhulagway ni Jean Baptiste François René Koehler hadton An Ophiomastix variabilis in nahilalakip ha genus nga Ophiomastix, ngan familia nga Ophiocomidae.

Waray hini subspecies nga nakalista. Mga kasarigan. ; ;