Africonus delanoyae ( Trovão, 1979 )

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 : 20-21

publication ID

https://doi.org/ 10.5852/ejt.2020.663

publication LSID

lsid:zoobank.org:pub:78E7049C-F592-4D01-9D15-C7715119B584

persistent identifier

https://treatment.plazi.org/id/AE38686E-304A-FF92-FDB6-F91FFC3A0F48

treatment provided by

Valdenar

scientific name

Africonus delanoyae ( Trovão, 1979 )
status

 

Africonus delanoyae ( Trovão, 1979) View in CoL

Fig. 3M View Fig

Conus delanoyi Trovão, 1979: 3 View in CoL , pl. 1, fig. 1.

Conus luquei Rolán, 1990: 50 View in CoL , pl. 2, fig. 2.

Africonus joserochoi Cossignani, 2014: 27 View in CoL . syn. nov.

Africonus swinneni Tenorio, Afonso, Cunha & Rolán, 2014: 10 View in CoL , pl. 2.

Conus delanoyae View in CoL – Monteiro et al. 2004: 39, pl. 77.

Conus cuneolus View in CoL form B (not C. cuneolus Reeve, 1843 View in CoL ) – Röckel et al. 1980a: 101, pl. 7, row 1.

Material examined

Holotype

CABO VERDE • 27.2 mm; Boa Vista Island, Baía das Gatas ; 1.5 m depth; NHMUK 1986194 About NHMUK .

Other material

CABO VERDE • 1 spec., 27.6 mm; Boa Vista Island, Jorrita , Baía das Gatas ; 16º12ʹ9ʺ N, 22º42ʹ22ʺ W; 30 Jun. 2013; MNCN exped.; GenBank mitochondrion, partial genome: MF491547 View Materials ; MNCN 15.05/80397 ( Fig. 3M View Fig ) GoogleMaps 1 spec.; Boa Vista Island, Praia Canto ; 16º11ʹ10ʺ N, 22º42ʹ28ʺ W; 30 Jun. 2013; MNCN exped.; GenBank mitochondrion, partial genome: MF491552 View Materials ; MNCN 15.05/80402 GoogleMaps 1 spec.; Boa Vista Island, Porto Ferreira ; 16º7ʹ45ʺ N, 22º40ʹ17ʺ W; 1 Jul. 2013; MNCN exped.; GenBank mitochondrion, partial genome: MF491556 View Materials ; MNCN 15.05/80406 GoogleMaps 1 spec., 21.0 mm, holotype of Africonus joserochoi ; Boa Vista Island, Calheta ; MMM .

Geographical distribution

Northeast coast to Porto Ferreira on the East coast of Boa Vista Island, Cabo Verde Archipelago.

Conservation status in IUCN Red List

Least concern.

Remarks

This species was originally described from the population at Baía das Gatas in Boa Vista Island, and the shell color is characterized by a pattern of numerous small irregular dots on a light to dark brown background. It was treated in Röckel et al. (1980a) as Conus cuneolus form B. Other populations of cones around the northeast and east of Boa Vista Island, introduced recently as separate species, exhibit very distinct shell patterns but share the same elongated radular tooth morphology observed in A. delanoyae ( Tenorio et al. 2014) . Representative specimens of these taxa examined molecularly exhibit mitogenome sequences almost identical to that of A. delanoyae , and can be considered conspecific. Additionally, the type material of A. joserochoi is fully consistent with the concept of A. delanoyae . The author stated that the main features separating A. joserochoi from A. delanoyae were the relative height of the spire (always eroded) and the “less triangular and more pyriform shell shape” in the former. However, no morphometric data are given, nor were these differences statistically tested, so there is no sufficient evidence to consider A. joserochoi as a separate species from A. delanoyae . We can conclude that A. delanoyae is a polymorphic species, only distantly related to A. cuneolus , comprising several well-defined forms with characteristic shell patterns, sharing the same radular morphology and mitogenome sequence. The sister species A. vulcanus is separated by a genetic uncorrected p distance of 0.3%, slightly above the threshold used to delimit species. Given the different radular morphology (radular tooth broad and robust in vulcanus , but narrow and elongated in delanoyae ) we consider them tentatively separate species in spite of the close genetic proximity.

MNCN

Museo Nacional de Ciencias Naturales

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Neogastropoda

Family

Conidae

Genus

Africonus

Loc

Africonus delanoyae ( Trovão, 1979 )

Tenorio, Manuel J., Abalde, Samuel, Pardos-Blas, José R. & Zardoya, Rafael 2020
2020
Loc

Africonus swinneni

Tenorio M. J. & Afonso C. M. L. & Cunha R. L. & Rolan E. 2014: 10
2014
Loc

Conus delanoyae

Monteiro A. & Tenorio M. J. & Poppe G. T. 2004: 39
2004
Loc

Conus luquei Rolán, 1990: 50

Rolan E. 1990: 50
1990
Loc

Conus cuneolus

Rockel D. & Rolan E. & Monteiro A. 1980: 101
1980
Loc

Conus delanoyi Trovão, 1979: 3

Trovao H. F. M. 1979: 3
1979
Loc

Africonus joserochoi

Africonus joserochoi Cossignani, 2014: 27
GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF