A developmental perspective on evolutionary innovation in the radula of the predatory neogastropod family Muricidae*

Herbert, Gregory S.; Merle, Didier; Gallardo, Carlos S.

doi:10.4003/0740-2783-23.1.17

Cited by 19 publications

(49 citation statements)

References 15 publications

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“…The calliostomatid lives usually on muddy, sandy bottoms at depths of approximately 25 m, while the muricid lives under rocks commonly feeding on barnacles and oysters (Rios 2009). Both species are reported herein for an estuarine area with many oyster beds, which is the preferred food of muricid gastropods (D'assaro 1966, Ponder 1998, Herbert et al 2007, Rossato et al 2014, Lima et al 2016a). On the other hand, all species found are commonly distributed in estuarine ecosystems of Brazil, such as the bivalves Anomalocardia brasiliana and Iphigenia brasiliana, which have great economic importance to fishing communities.…”

Section: Discussionmentioning

confidence: 96%

Inventory of mollusks from the estuary of the Paraíba River in northeastern Brazil

Lima¹,

Lucena²,

Santos³

et al. 2017

Biota Neotrop.

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Coastal ecosystems of northeastern Brazil have important biodiversity with regard to marine mollusks, which are insufficiently studied. Here we provide an inventory of mollusks from two sites in the estuary of the Paraíba River. Mollusks were collected in 2014 and 2016 on the coast and sandbanks located on the properties of Treze de Maio and Costinha de Santo Antônio. The malacofaunal survey identified 12 families, 20 genera and 21 species of bivalves, 17 families, 19 genera and 20 species of gastropods and one species of cephalopod. Bivalves of the family Veneridae Rafinesque, 1815 were the most representative, with a total of five species. Gastropods of the family Littorinidae Children, 1834 had the greatest species richness. The most abundant species were: Neritina virginea (Linnaeus, 1758), Brachidontes exustus (Linnaeus, 1758), Crassostrea brasiliana (Lamarck, 1819), Cerithium atratum (Born, 1778), Anomalocardia brasiliana (Gmelin, 1791), Parvanachis obesa (C. B. Adams, 1845), Phrontis polygonata (Lamarck, 1822), Littoraria angulifera (Lamarck, 1822), L. flava (King, 1832), Tagelus plebeius (Lightfoot, 1786), Echinolittorina lineolata (d'Orbigny, 1840) and Iphigenia brasiliensis (Lamarck, 1818). The results show that the study area has considerable species richness of Mollusca, requiring environmental monitoring in the region mainly due to the economic importance of some species to the local population.

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Section: Discussionmentioning

confidence: 96%

Inventory of mollusks from the estuary of the Paraíba River in northeastern Brazil

Lima¹,

Lucena²,

Santos³

et al. 2017

Biota Neotrop.

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“…A bend in the base can occur at the position of each lateral cusp, which gives the base a V-shape, or at the position of each marginal cusp, which produces a broader, U-shaped or "rectangular" rachidian. The distinction between different types of bending points along the rachidian base was not recognized by Vokes (1971) or Herbert et al (2007).…”

Section: Abbreviations and Terminologymentioning

confidence: 93%

“…The ontogeny of S. biserialis mirrors that of the Chilean rapanine Concholepas concholepas (Bruguière, 1789), as described by Herbert et al (2007). In both species, adult rachidia have typical rapanine features (e.g., flat rachidian base, a central cusp aligned in the same plane as the lateral cusps, and lateral cusps with a broad, flat base: see Kool, 1987Kool, , 1993, while early post-metamorphic individuals have a rachidian that fits the generalized morphology of the subfamily Ocenebrinae (e.g., 3-D rachidian base; short, projecting central cusp; and narrow, conical lateral cusps with appended inner lateral denticles).…”

Section: Remarksmentioning

confidence: 93%

“…The terminology used to describe structural elements of the radula follows Radwin & D'Attilio (1976), Kool (1993) and Herbert et al (2007) and is illustrated in Figures 2-5. b: rachidian base; cc: central cusp; ild: inner lateral denticle; imc: inner marginal cusp; lc: lateral cusp; mc: marginal cusp; md: marginal denticle; old: outer lateral denticle; omc: outer marginal cusp; rm: radular membrane; s: shoulder; sild: serrated inner lateral denticle.…”

Section: Abbreviations and Terminologymentioning

confidence: 99%

“…In many of these examples, developmental modifications were found to mirror key evolutionary transitions between higher taxa, suggesting that evolutionary changes in developmental timing (i.e., heterochrony) may be an important mechanism for generating the kinds of morphological novelty studied by systematists. MALACOLOGIA, 2015, 58(12) Heterochronic mechanisms are thought to have been particularly important in the origins of several subfamily-level, radula morphotypes within the neogastropod family Muricidae (Fujioka 1984(Fujioka , 1985DiSalvo, 1988;Di Salvo & Carriker, 1994;Herbert et al, 2007;Pastorino et al, 2007;Pastorino & Penchaszadeh, 2009;Pio et al, 2014). However, the early ontogenetic stages of the radula are still unknown for most of the nearly 2,000 species currently assigned to the Muricidae, and coverage is uneven at the level of muricid subfamilies.…”

Section: Introductionmentioning

confidence: 99%

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Morphological Development of the Radula of Four Species of the Neogastropod Family Muricidae

et al. 2015

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Three‐dimensional visualization of predatory gastropod feeding teeth with synchrotron scanning

Herbert,

Hill,

Pio

et al. 2023

Journal of Morphology

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Several families of neogastropod mollusks independently evolved the ability to drill through mineralized prey skeletons using their own mineralized feeding teeth, sometimes with shell‐softening chemical agents produced by an organ in the foot. Teeth with more durable tooth shapes should extend their use and improve predator performance, but past studies have described only the cusped‐side of teeth, mostly overlooking morphologies related to functional interactions between teeth. Here, we describe the three‐dimensional morphology of the central drilling tooth (rachidian) from four species of the neogastropod family Muricidae using synchrotron tomographic microscopy and assemble a three‐dimensional model of a multitooth series in drilling position for two of them to investigate their dynamic form. We find two new types of articulating surfaces, including a saddle joint at either end of the rachidian and a large tongue‐and‐groove joint in the center. The latter has a shape that maximizes contact surface area between teeth as they rotate away from each other during drilling. Articulating joints have not been described in Neogastropod radula previously, but they are consistent with an earlier hypothesis that impact forces on individual teeth during predatory drilling are dispersed by tooth–tooth interactions.

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A developmental perspective on evolutionary innovation in the radula of the predatory neogastropod family Muricidae*

Cited by 19 publications

References 15 publications

Inventory of mollusks from the estuary of the Paraíba River in northeastern Brazil

Inventory of mollusks from the estuary of the Paraíba River in northeastern Brazil

Morphological Development of the Radula of Four Species of the Neogastropod Family Muricidae

Three‐dimensional visualization of predatory gastropod feeding teeth with synchrotron scanning

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