Varioconus trencarti ( Nolf & Verstraeten, 2008 ) Tenorio & Abalde & Pardos-Blas & Cmim, 2020

Tenorio, Manuel J., Abalde, Samuel, Pardos-Blas, José R. & Zardoya, Rafael, 2020, Taxonomic revision of West African cone snails (Gastropoda: Conidae) based upon mitogenomic studies: implications for conservation, European Journal of Taxonomy 663 (663), pp. 1-89 : 74

Varioconus trencarti ( Nolf & Verstraeten, 2008) comb. nov.

Fig. 11K

Conus trencarti Nolf & Verstraeten, 2008: 1 , pls 1–2.

Material examined

Holotype

SENEGAL • 26.3 mm; Pointe des Almadies ; 20 m depth; MNHN IM-2000-21455 ( Fig. 11K ).

Other material

SENEGAL • 1 spec.; Pointe des Almadies ; A. Trencart leg.; GenBank mitochondrion, partial genome: MT240815 ; MNCN 15.05/90433 .

Geographical distribution

Dakar area, Senegal.

Conservation status in IUCN Red List

Near threatened.

Remarks

This is another member of the V. guinaicus clade, with a close phenotypical resemblance to V. guinaicus form pineaui . The sequence divergence of the mitogenome of one individual from the type locality suggests that this is a valid species, sister to V. guanche and V. unifasciatus ( Fig. 2 ). At variance with most other species of Varioconus from Senegal, V. trencarti has a relatively deep-water habitat, between 20 and 40 m, and a restricted distribution range around Pointe des Almadies, Dakar.

Figures

Fig. 11. A. Conus mercator Linnaeus, 1758, lectotype, 24.0 mm (LSL 254). B. Varioconus mercator (Linnaeus, 1758) comb. nov., 34.7 mm (MNCN 15.05/78482). C. Varioconus mercator f. stimpsonorum (Cossignani & Allary, 2019), 39.1 mm (MNCN 15.05/78419). D. Lautoconus fernandi Petuch & Berschauer, 2018, holotype, 35.4 mm (MNHN IM-2000-34012). E. Lautoconus gambiensis Petuch & Berschauer, 2018, holotype, 21.6 mm (MNHN IM-2000-34013). F. Lautoconus rikae Petuch & Berschauer, 2018, holotype, 17.9 mm (MNHN IM-2000-34014). G. Conus orri (Ninomiya & da Motta, 1982), paratype, 30.1 mm (SNMS ZI0091234). H. Conus reticulatus Born, 1778, lectotype, 25 mm (NHMW Mollusca 14159). I. Varioconus reticulatus (Born, 1778) comb. nov., 29.5 mm (MNCN 15.05/78439). J. Conus tacomae Boyer & Pelorce, 2009, holotype, 17 mm (MNHN IM-2000- 21046). K. Conus trencarti Nolf & Verstraeten, 2008, holotype, 26.3 mm (MNHN IM-2000-21455). L. Varioconus unifasciatus (Kiener, 1850) comb. nov., 39.8 mm (MNCN 15.05/78451). Scale bars = 10 mm.

Fig. 2. Phylogenetic relationships of West African cones and species delimitation. A time tree (relaxed molecular clock) was reconstructed following methods and calibrations in Abalde et al. (2017a). Dates are in million years. Bold names indicate new mitogenomes. A red line indicates the threshold (uncorrected p distance of 0.2%, based on the divergences between Africonus verdensis (Trovão, 1979) and its sister group and Varioconus guanche (Lauer, 1993) and its sister group) for species delimitation.