Samlidae Korshunova et al. , 2017
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https://doi.org/10.1093/zoolinnean/zlaf057 |
publication LSID |
lsid:zoobank.org:pub:D09886E-5D7C-40D1-B86A-118A3ADE5773 |
persistent identifier |
https://treatment.plazi.org/id/03EF87FE-FFB7-FFCC-FC4D-FEAAFD74FE43 |
treatment provided by |
Plazi |
scientific name |
Samlidae Korshunova et al. , 2017 |
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Family Samlidae Korshunova et al., 2017 View in CoL
( Figs 1, 2; Table 4)
‘Genus Flabellina sensu latissimo ’ Gosliner and Griffiths 1981: 105 , 109–15.
Family Samlidae Korshunova et al. 2017a: 60 View in CoL .
Diagnosis: Body narrow. Notal edge discontinuous or completely reduced. Cerata on low elevations, few per row. Ceratal rows branched. Rhinophores perfoliate. Anus pleuroproctic under the reduced notal edge or shifted toward the acleioproctic position. Jaws with masticatory edges bear a single or several moderate or strong denticles. Radula formula 1.1.1. Central teeth usually with strong cusp, rarely compressed by adjacent lateral denticles. Lateral teeth denticulated, basal lateral parts elongated. Distal and proximal receptaculum seminis or only a proximal receptaculum. Vas deferens usually short, to moderately long, prostate indistinct or distinct. Supplementary and accessory glands absent. Massive external permanent penial collar absent. Penis internal, not considerably widened, unarmed.
Genera: Samla Bergh, 1900 , Luisella Korshunova et al., 2017 .
Superfamily Apataoidea Korshunova et al., 2017 , herein established
( Fig. 2; Tables 1–3)
Diagnosis: Aeolidacean superfamily with triserial radula. Notal edge completely reduced. Cerata in distinct, regularly placed separate rows, somewhat elevated. Rhinophores perfoliate. Anus mixed (pleuroproctic in a higher acleioproctic position). Anterior foot corners present. Elaborate oral glands present. Jaws with masticatory edges bear several moderate denticles, tuberculate to more sharpened. Central teeth cusp compressed by adjacent lateral denticles. Lateral teeth smooth with moderately attenuated process basally. Distal receptaculum seminis. Clasping organ in female part of reproductive system absent. Vas deferens moderately long, prostate relatively distinct. Supplementary and accessory glands absent. Massive external permanent penial collar absent. Penis internal, narrow, unarmed.
Families included: Apataidae Korshunova et al., 2017 .
Remarks: Although superfamilies Samloidea and Apataoidea are sister ( Fig. 2), their recognition as separate superfamilies is highly justified by morphological data because the latter superfamily immediately differs from the former by patterns of the ceratal rows and the complete absence of a notal edge, features that are more similar to much more distantly related superfamilies Fionoidea and Aeolidioidea . Furthermore, according to the molecular phylogenetic data, the sister-relationship between Samloidea and Apataoidea does not align with the highest support, which also implies that both superfamilies together do not form a consistent, natural, molecular, and morphological taxon. Notably, in all phylogenies obtained herein, the superfamilies Samloidea and Apataoidea invariably align as sisters to all other aeolidacean taxa, which in turn may imply that both Samloidea and Apataoidea , although disparate and diverged, represent an earlier off-shoot of the evolutionary radiation of the suborder Aeolidacea , when a common triserial ancestor of the majority of the modern aeolidacean superfamilies initially separated from the oligoserial Notaeolidioidea-like common ancestor of the suborder Aeolidacea (see Synopsis above; Figs 1, 2).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Samlidae Korshunova et al. , 2017
Korshunova, Tatiana, Fletcher, Karin & Martynov, Alexander 2025 |
Samlidae
Korshunova TA & Martynov AV & Bakken T 2017: 60 |