Project 222: T. Huelsken, D. Tapken, T. Dahlmann, H. Waegele, C. Riginos, M. Hollmann. 2012. Systematics and phylogenetic species delimitation within Polinices s.l. (Caenogastropoda: Naticidae) based on molecular data and shell morphology. Organisms Diversity & Evolution.
Specimen: Polinices mammilla (RUB/51-7)
View: apertural

Abstract

Here, we present the first phylogenetic analysis of a group of species taxonomically assigned to Polinices sensu latu (Naticidae, Gastropoda) based on molecular data sets. Polinices s.l. represents a speciose group of the infau- nal gastropod family Naticidae, including species that have often been assigned to subgenera of Polinices [e.g. P. (Neverita), P. (Euspira), P. (Conuber) and P. (Mammilla)] based on conchological data. The results of our molecular phylogenetic analysis confirm the validity of five genera, Conuber, Polinices, Mammilla, Euspira and Neverita, in- cluding four that have been used previously mainly as sub- genera of Polinices s.l. Our results furthermore indicate a close relationship of members of the Polinicinae to Sinum— a genus traditionally placed in the naticid subfamily Sininae. We furthermore present conchological analyses to determine the validity of shell characters used traditionally in species designation in the genus Polinices. Our data reveal several characters (e.g. protoconch, operculum colour, parietal callus) to be informative, while many characters show a high degree of homoplasy (e.g. umbilicus, shell form). Among the species arranged in the genus Polinices s.s., four conchologically very similar taxa often subsumed under the common Indo-Pacific species P. mammilla are separated distinctly in phylogenetic analyses. Despite their striking conchological similarities, none of these four taxa are relat- ed directly to each other. Additional conchological analyses of available name-bearing type specimens and type figures reveal the four “mammilla”-like white Polinices species to include true P. mammilla and three additional species, which could be assigned to P. constanti (replacement name for P. dubius), P. jukesii and possibly P. tawhitirahia, based on protoconch and operculum characteristics.


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Project DOI: 10.7934/P222, http://dx.doi.org/10.7934/P222
This project containsMatrices
  • 101 Media
  • 1 Matrix
  • 81 Taxa
  • 30 Specimens
  • 28 Characters
Total size of project's media files: 89 MB

Download Project SDD File
Total scored cells: 1732
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 28
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 85
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:28/0
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MorphoBank Project 222


    Members

    member name taxa specimens media chars character
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    (scored, NPA, "-")
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    Thomas Huelsken
    Project Administrator
    Last logged in 10/28/12
    813010128001732
    (1732, 0, 0)
    000
    Michael Hollmann
    Full membership
    Last logged in 01/26/09
    0000000
    (0, 0, 0)
    000


    Taxonomic Overview for Matrix 'M1859' (63 Taxa)

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    [1] Ssan35
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    [17] Mmel25
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    [24] Pmam515
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    [28] Pmam5114
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    [30] Pmam5116
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    [31] Pmam5117
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    [32] Pmam5119
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    [33] Pmam5121
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    [34] Pmam5122
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    [35] Pmam5124
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