Ontogenetic Variation of Taxonomic Characters of Two Marine Tardigrades with the Description of Batillipes bullacaudatus n. sp.

McGinty, M. Maxine; Higgins, Robert P.

doi:10.2307/3224449

Cited by 27 publications

(10 citation statements)

References 2 publications

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“…This is the case for the tardigrades Batillipes bullacaudatus McGinty &Higgins, 1968 andTanarctus bubulubus Jørgensen &Kristensen, 2001. Both species were described as having specialized caudal appendages with balloon-like projections (Jørgensen & Kristensen 2001;McGinty & Higgins 1968). In T. bubulubus these balloons are hollow and strongly furrowed and are hypothesized to be either buoyant or adhesive organs (Jørgensen & Kristensen 2001).…”

Section: Tablementioning

confidence: 98%

The enigmatic kinorhynch Cateria styx Gerlach, 1956 – A sticky son of a beach

Herranz

Domênico

Sørensen

et al. 2019

Zoologischer Anzeiger

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Since its discovery in the mid-1950'ies, Cateria has been an enigmatic kinorhynch genus due to its aberrant worm-like shape and extremely thin cuticle. However, the rare occurrence of the species, only found in sandy intertidal habitats, and the poor preservation of the type material have hampered detailed studies of the genus over time. Now, sixty years after the original description of Cateria styx, we present an extensive morphological and functional study based on new material collected from its type locality in Maca e, Brazil. We combine live observations with detailed scanning electron microscopy data, new light microscopy material, confocal laser scanning microscopy and three-dimensional rendering. These observations show that C. styx displays a complex array of cuticular structures (spines, spinoscalids and extraordinarily complex cuticular ornamentation) that we interpret to be adaptations for mechanical adhesion, through friction and interlocking, in an interstitial habitat; the enigmatic dorsal organ, is a hydrostatic structure which function is inferred to be adhesive. Additional morphological traits in C. styx include: extremely elongated primary spinoscalids that cannot be completely retracted in the trunk; a reduced number of spinoscalids; sixteen elongated hairy patches in the introvert; fifteen trichoscalids that vary in length; the absence of a neck; dorsal spines being alternatingly displaced to either left or right side paradorsal positions; and high intraspecific variation in the number and position of glandular openings in the trunk.

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Section: Tablementioning

confidence: 98%

The enigmatic kinorhynch Cateria styx Gerlach, 1956 – A sticky son of a beach

Herranz

Domênico

Sørensen

et al. 2019

Zoologischer Anzeiger

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“…Batillipes mirus Richters 1909 (Marcus 1927;Rudescu 1964; McGinty and Higgins 1968;Pollock 1970a, b). Sandy intertidal and shallow subtidal, interstitial.…”

Section: Eastern Atlanticmentioning

confidence: 99%

Marine flora and fauna of the northeastern United States. Tardigrada

Pollock¹

1976

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“…As marine arthrotardigrade populations of this size are very rarely encountered, knowledge of both the ontogeny and the intraspecific variability of particular morphological characters is still very limited. Few studies on the postembryonic development in Arthrotardigrada have been performed on large populations (McGinty & Higgins, ; Pollock, ,b; Grimaldi de Zio & D'Addabbo Gallo, ; Kristensen, ). Additional information on postembryonic development, variations in features during ontogenesis and population dynamics has mostly been supplied in ecological studies or species descriptions, which are more numerous.…”

Section: Introductionmentioning

confidence: 99%

Postembryonic development, paedomorphosis, secondary sexual dimorphism and population structure of a newFlorarctusspecies (Tardigrada, Heterotardigrada)

et al. 2016

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A large number of specimens (1563) of a new Florarctus species were collected in a single intertidal sample from the Ionian Sea, Italy. The postembryonic development of the new species was studied with emphasis on external morphology and functional anatomy. The new Florarctus species was recognized as having two distinct larval stages, during which the anus is formed and the gonads mature prior to the development of a gonopore. The larval stages are followed by one adult stage in females and two adult stages in males. Cuticular structures change in morphology during postembryonic development, so that they exhibit a juvenile and an adult appearance. The accelerated growth in gonadal development could be the result of paedomorphosis, which was observed in the tendency of adult males of the new Florarctus species to maintain juvenile character conditions.

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Ontogenetic Variation of Taxonomic Characters of Two Marine Tardigrades with the Description of Batillipes bullacaudatus n. sp.

Cited by 27 publications

References 2 publications

The enigmatic kinorhynch Cateria styx Gerlach, 1956 – A sticky son of a beach

The enigmatic kinorhynch Cateria styx Gerlach, 1956 – A sticky son of a beach

Marine flora and fauna of the northeastern United States. Tardigrada

Postembryonic development, paedomorphosis, secondary sexual dimorphism and population structure of a newFlorarctusspecies (Tardigrada, Heterotardigrada)

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