Ischnochiton, Gray, 1847

Dell’Angelo, Bruno, Sosso, Maurizio & Taviani, Marco, 2025, The Cenozoic European Polyplacophora (Mollusca), Zootaxa 5704 (1), pp. 1-377 : 303

publication ID	https://doi.org/10.11646/zootaxa.5704.1.1
publication LSID	lsid:zoobank.org:pub:747DFE8B-156A-493A-8817-5F861C4D6319
persistent identifier	https://treatment.plazi.org/id/03FEF726-FEC1-4F3E-0FAD-FEFC6B5B97D1
treatment provided by	Plazi
scientific name	Ischnochiton
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Treatment

Ischnochiton View in CoL ? sp. Dell’Angelo, Sosso, Prudenza & Bonfitto, 2013

Fig. 154H View FIGURE 154

Ischnochiton View in CoL ? sp. Dell’Angelo, Sosso, Prudenza & Bonfitto, 2013, p. 80, pl. 4, figs N–R.

Remarks. A few small valves from the lower Pliocene of Liguria (Rio S. Antonino, Caranchi and Sestri Ponente), completely smooth and glossy, plus a tail valve from Caranchi ( Fig. 154H View FIGURE 154 ). At a first glance, the species appears similar to Rhyssoplax capecchii ( Chirli, 2004) ; however, it differs in having a smooth tegmentum, whilst very fine radial and longitudinal striae always occur in C. capecchii . The teeth in the insertion plates are worn, so it is not possible to assess whether they are pectinated or not. We suggest a provisional generic assignment to Ischnochiton .

References

Figures

FIGURE 154. Problematic species assignment. A. Leptochiton sp. Dell’Angelo, Garilli, Germanà, Reitano, Sosso & Bonfitto, 2012, Altavilla Milicia (Italy), Pliocene, BD 254, intermediate valve, width 4.5 mm, dorsal view (from Dell’Angelo et al. 2012: fig. 3E). B. Leptochiton sp. Dell’Angelo, Sosso, Prudenza & Bonfitto, 2013, Garlenda (Italy), Pliocene (Zanclean), MZB 45704, head valve, width 2 mm, dorsal view (from Dell’Angelo et al. 2013: pl. 3, fig. A). C. Leptochiton sp. Dell’Angelo, Landau, Van Dingenen & Ceulemans 2018, Saint-Clément-de-la-Place (France), Miocene (Tortonian), MNHN.F.A67067, intermediate valve, width 1.7 mm, dorsal view (from Dell’Angelo et al. 2018b: fig. 6A). D. Leptochiton sp., Gamachot (France), lower Miocene, BD, tail valve, width 1.9 mm, dorsal view (from Dell’Angelo et al. 2018a: fig. 3M, as Leptochiton cf. L. josei Dell’Angelo, Sosso, Prudenza & Bonfitto, 2013). E. Leptochiton sp., Rocco di Passerano (Italy), lower Miocene, MZB 32014, head valve, width 4.3 mm (from Dell’Angelo et al. 2015: pl. 3, fig. 12, as Leptochiton salicensis Dell’Angelo & Bonfitto, 2005). F. Leptochiton sp., Borelli (Italy), Miocene (Tortonian), MZB 32015, tail valve, width 2.1 mm, (from Dell’Angelo et al. 2015: pl. 3, fig. 15, as Leptochiton salicensis Dell’Angelo & Bonfitto, 2005). G. Hanleya sp. Dell’Angelo, Landau & Marquet, 2004, Estepona, Velerin Antena (Spain), Pliocene, BD, tail valve, width 4.3 mm, dorsal view (from Dell’Angelo et al. 2004: pl. 3, fig. 1). H. Ischnochiton? sp. Dell’Angelo, Sosso, Prudenza & Bonfitto, 2013, Caranchi (Italy), Pliocene (Zanclean), MZB 45717, tail valve, width 2 mm, dorsal view (from Dell’Angelo et al. 2013: pl. 4, fig. N). I. Stenosemus sp., Moulin Pochas (France), upper Miocene, PR, head valve, width 4 mm, dorsal view [from Dell’Angelo et al. 2018a: fig. 6D, as Stenosemus dolii (Van Belle & Dell’Angelo, 1998)]. J–K. Callochiton sp. Dell’Angelo, Sosso, Prudenza & Bonfitto, 2013, Rio S. Antonino (Italy), MZB 45727, tail valve, width 3.2 mm, dorsal (J) and lateral (K) views (from Dell’Angelo et al. 2013: pl. 5, figs Q–R). L–M. Rhyssoplax sp., Abesse (France), upper Oligocene, DA, intermediate valve, width 1.4 mm, dorsal (L) and frontal (M) views

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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.

Taxonomy

Kingdom	Animalia
Phylum	Mollusca
Class	Polyplacophora
Order	Chitonida
Family	Ischnochitonidae

Ischnochiton

Dell’Angelo, Bruno, Sosso, Maurizio & Taviani, Marco 2025

2025

Ischnochiton

Dell'Angelo, B. & Sosso, M. & Prudenza, M. & Bonfitto, A. 2013: 80

2013

Ischnochiton, Gray, 1847

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Taxonomy

Ischnochiton

Ischnochiton

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