Leucozonia and related genera of fasciolariid gastropods: Shell-based taxonomy and relationships

Vermeij, Geerat J.; Snyder, Martin Avery

doi:10.1635/0097-3157(2002)152[0023:largof]2.0.co;2

Cited by 11 publications

(8 citation statements)

References 11 publications

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“…Leucozonia nassa is a widely distributed species occurring from southeastern Brazil to North Carolina, including records from several locations in the Caribbean. Three distinct forms can be identified, which correspond to three subspecies sensu Abbott (1958) and Vermeij and Snyder (2002), or three species sensu Vermeij (1997): the typical L. nassa nassa which occurs in Caribbean islands and from North Carolina to Florida and the Gulf of Mexico; L. nassa cingulifera, found offshore in NE Brazilian waters, off Bahia and the islands of Fernando de Noronha and Atol das Rocas; and L. nassa brasiliana, from the SE to NE Brazilian coast. Shell characters alone may be insufficient to allow unambiguous separation among the various forms (Vermeij and Snyder, 2002).…”

Section: Discussionmentioning

confidence: 99%

“…Due to overlapping geographic ranges and the presence of intermediate forms, L. nassa is recognized as a single species (WoRMS, 2016). Leucozonia ponderosa was decribed by Vermeij and Snyder (1998) as endemic to Trindade Island, SE Brazil, while Vermeij and Snyder (2002) argued that it may be a local variant of the widespread L. nassa "with the hope that molecular investigations resolve this issue". Couto and Pimenta (2012) examined several specimens from both L. ponderosa and L. nassa and found no anatomical variation among them; however, they distinguished the species by their unique shell morphology.…”

Section: Discussionmentioning

confidence: 99%

“…However, due to the low support and incongruence of deeper nodes, the relationships among them are not well resolved. Vermeij and Snyder (2002) suggested that fusinines are a stem-group distinguished from the other subfamilies by the absence of columellar folds. Shells of fusinine generalized morphology extend back to the early Cretaceous and probably represent the plesiomorphic shell type of Neogastropoda (Harasewych, 1990;Riedel, 2000).…”

Section: The Fusinus Colus Cladementioning

confidence: 99%

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A multilocus molecular phylogeny of Fasciolariidae (Neogastropoda: Buccinoidea)

Couto

Bouchet

Kantor

et al. 2016

Molecular Phylogenetics and Evolution

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: The Fusinus Colus Cladementioning

confidence: 99%

See 1 more Smart Citation

A multilocus molecular phylogeny of Fasciolariidae (Neogastropoda: Buccinoidea)

Couto

Bouchet

Kantor

et al. 2016

Molecular Phylogenetics and Evolution

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“…Tryon 1880, Thiele 1929-1935, Vermeij and Snyder 2002, and taxonomic approaches based on soft-part anatomy are few. Anatomical data for the buccinoideans, particularly the stomach (e.g.…”

Section: Discussionmentioning

confidence: 99%

Comparative anatomy of the fasciolariids <em>Pustulatirus ogum</em> and <em>Hemipolygona beckyae</em> from Brazil (Gastropoda: Buccinoidea: Peristerniinae)

Couto¹,

Simone²,

Pimenta³

2015

Sci. Mar.

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Summary:The Brazilian species Pustulatirus ogum and Hemipolygona beckyae were examined, and certain morphological characters were described. Both species were originally assigned to the genus Latirus, considered as a heterogeneous complex. The radulae of both species are like that which characterizes Latirus, in which the innermost cusp of the rachidian tooth is well developed but always smaller than the other cusps. This feature differs from Leucozonia, in which this cusp is reduced or absent. The penis tapers terminally, and the tapered part may be long (more than half the total penis length), as in H. beckyae, or very short (less than half the total penis length), as in P. ogum. The anatomical data observed in both species are discussed under the framework of fasciolariid systematics and they appear to be widespread among other fasciolariid species. For this reason, to date, the soft-part features here provided and those known from previously studied species of Latirus are not useful for delineating precise generic diagnoses.Keywords: morphology; Caenogastropoda; Fasciolariidae; Latirus; western Atlantic. Anatomía comparada de los fascioláridosPustulatirus ogum y Hemipolygona beckyae de Brasil (Gastropoda: Buccinoidea: Peristerniinae) Resumen: Se describe la morfología y anatomía de las especies brasileñas Pustulatirus ogum y Hemipolygona beckyae. Ambas especies han sido tradicionalmente asignadas al género Latirus, que en la actualidad se considera que agrupa a un conjunto heterogéneo de especies. Las rádulas de ambas especies son como la que caracteriza a Latirus, con la cúspide más interna del diente raquídeo bien desarrollada y siempre menor que las otras cúspides. Esta característica difiere de la que presentan las especies del género Leucozonia, en las que esta cúspide está reducida o ausente. El pene se estrecha en su parte terminal, y la parte cónica puede ser larga (más de la mitad de la longitud total del pene), como en H. beckyae, o muy corta (menos de la mitad de la longitud total del pene), como en P. ogum. Los caracteres morfológicos observados en ambas especies se discuten en el marco de la sistemática de los Fasciolariidae y parecen estar ampliamente distribuidos en otras especies de fascioláridos. Por ello, hasta la fecha, las características de las partes blandas del animal aquí descritas y las conocidas previamente de otras especies de Latirus no se consideran de utilidad para la diagnosis de los géneros en esta familia.

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“…At the subgeneric level these taxa include Bostrycapulus (Collin & Rolán, 2010), Chelyconus (Kraus et al, 2011), Gutturnium (Beu, 2010), Leucozonia (Vermeij & Snyder, 2002), Morula, Nodipecten (Smith, 1991), Thais (Vermeij, 2001), Tonna (Beu, 2010), and several species groups in Echinolittorina (Reid, 2009 Tropical past and future of the Mediterranean…”

Section: Fossil Record and Biogeographical Historymentioning

confidence: 99%

The tropical history and future of the Mediterranean biota and the West African enigma

Vermeij

2011

Journal of Biogeography

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Aim Since the opening of the Suez Canal in 1869, many tropical taxa from the Indo‐West Pacific (IWP) realm have entered the Mediterranean Sea, which is experiencing rising temperatures. My aims are: (1) to compare biogeographically this tropical transformation of the Mediterranean biota with the tropical faunas of the Mediterranean and adjacent southern European and West African seas during the Late Oligocene to Pliocene interval; (2) to infer the relative contributions of the tropical eastern Atlantic and IWP to the tropical component of the marine biota in southern Europe; and (3) to understand why West Africa is not now a major source of warm‐water species. Location Southern Europe, including the Mediterranean Sea, and the coast of tropical West Africa. Methods I surveyed the literature on fossil and living shell‐bearing molluscs to infer the sources and fates of tropical subgenus‐level taxa living in southern Europe and West Africa during the Late Oligocene to Pliocene interval. Results Ninety‐four taxa disappeared from the tropical eastern Atlantic (including the Mediterranean) but persisted elsewhere in the tropics, mainly in the IWP (81 taxa, 86%) and to a lesser extent in tropical America (36 taxa, 38%). Nine taxa inferred to have arrived in the tropical eastern Atlantic from the west after the Pliocene did not enter the Mediterranean. The modern West African fauna is today isolated from that of other parts of the marine tropics. Main conclusions Taxa now entering the Mediterranean through the Suez Canal are re‐establishing a link with the IWP that last existed 16 million years ago. This IWP element, which evolved under oligotrophic conditions and under a regime of intense anti‐predatory selection, will continue to expand in the increasingly warm and increasingly oligotrophic Mediterranean. The IWP source fauna contrasts with the tropical West African biota, which evolved under productive conditions and in a regime of less anti‐predatory specialization. Until now, the post‐Pliocene West African source area has been isolated from the Mediterranean by cold upwelling. If further warming should reduce this barrier, as occurred during the productive and warm Early Pliocene, the Mediterranean could become a meeting place for two tropical faunas of contrasting source conditions.

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Leucozonia and related genera of fasciolariid gastropods: Shell-based taxonomy and relationships

Cited by 11 publications

References 11 publications

A multilocus molecular phylogeny of Fasciolariidae (Neogastropoda: Buccinoidea)

A multilocus molecular phylogeny of Fasciolariidae (Neogastropoda: Buccinoidea)

Comparative anatomy of the fasciolariids <em>Pustulatirus ogum</em> and <em>Hemipolygona beckyae</em> from Brazil (Gastropoda: Buccinoidea: Peristerniinae)

The tropical history and future of the Mediterranean biota and the West African enigma

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