Africonus maioensis ( Trovão, Rolán & Félix-Alves, 1990 )
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-307D-FFA3-FE48-FB51FD0C0FE2 |
treatment provided by |
Valdenar |
scientific name |
Africonus maioensis ( Trovão, Rolán & Félix-Alves, 1990 ) |
status |
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Africonus maioensis ( Trovão, Rolán & Félix-Alves, 1990) View in CoL
Fig. 4O View Fig
Conus maioensis Trovão, Rolán & Félix-Alves, 1990: 71 View in CoL , fig. 11.
Conus crioulus Tenorio & Afonso, 2004: 30 View in CoL , pl. 5.
Africonus zinhoi Cossignani, 2014: 19 View in CoL .
Africonus marcocastellazzii Cossignani & Fiadeiro, 2014a: 14 View in CoL .
Africonus cossignanii Cossignani & Fiadeiro, 2014a: 18 View in CoL . syn. nov.
Africonus decolrobertoi Cossignani & Fiadeiro, 2017a: 28 View in CoL . syn. nov.
Conus maioensis View in CoL – Monteiro et al. 2004: 57, pl. 115.
Conus irregularis View in CoL (not irregularis G.B. Sowerby II, 1858 View in CoL ) – Monteiro et al. 2004: pl. 103, figs 1, 4, 6–7.
Material examined
The holotype was in Museu Bocage in Lisbon and currently assumed to be lost due to a fire which destroyed the building of the hosting institution. A neotype was subsequently designated ( Monteiro et al. 2014).
Neotype
CABO VERDE • 24.5 mm; Maio Island, Porto Cais, Baía do Navío Quebrado ; 15º20ʹ N, 23º12ʹ W; MNCN 15.05/69910 . GoogleMaps
Other material
CABO VERDE • 1 spec., 29.5 mm; Maio Island, Porto Cais ; 15º19ʹ15ʺ N, 23º11ʹ10ʺ W; 31 Mar. 2013; MNCN exped.; GenBank mitochondrion, partial genome: MF491523 View Materials ; MNCN 15.05/78689 ( Fig. 4O View Fig ) GoogleMaps • 1 spec.; Maio Island, Lage Branca ; 31 Mar. 2013; MNCN exped.; GenBank mitochondrion, partial genome: MF491527 View Materials ; MNCN 15.05/79727 • 1 spec.; Maio Island, Porto Cais ( North ); 15º19ʹ45ʺ N, 23º10ʹ57ʺ W; 1 Apr. 2013; MNCN exped.; GenBank mitochondrion, partial genome: MF491530 View Materials ; MNCN 15.05/78765 GoogleMaps • 1 spec.; Maio Island, Praia Santana ; 15º18ʹ13ʺ N, 23º11ʹ49ʺ W; 30 Mar. 2013; MNCN exped.; GenBank mitochondrion, partial genome: MF491521 View Materials ; MNCN 15.05/78670 GoogleMaps • 1 spec.; Boa Vista Island, Baía Grande, Derrubado ; 16º13ʹ31ʺ N, 22º47ʹ17ʺ W; 1 Apr. 2013; MNCN exped.; GenBank mitochondrion, partial genome: MF491544 View Materials ; MNCN 15.05/80394 GoogleMaps • 1 spec.; Boa Vista Island, Curral Velho ; 15º58ʹ4ʺ N, 22º47’42ʺ W; 22 Apr. 2015; MNCN exped.; GenBank mitochondrion, partial genome: MF491595 View Materials ; MNCN 15.05/79979 GoogleMaps • 1 spec., 28.5 mm, holotype of Africonus cossignanii ; Maio Island, Praia Real ; MMM • 1 spec., 13.1 mm, holotype of Africonus decolrobertoi ; Maio Island, Praia Real ; MMM .
Geographical distribution
Maio and Boa Vista islands, Cabo Verde Archipelago.
Conservation status in IUCN Red List
Least concern.
Remarks
This is one of the most representative species of Maio Island, as reflected by its name. Off Maio Island it is distributed along the north coast, from Baía do Navio Quebrado to Baía do Galeao. Each of the populations has its own characteristic shell pattern on a green to black background color. This variability has led to the introduction of several new taxa names. However, an examination of the mitogenome sequences indicates that all these names correspond to plain color forms of one single polymorphic species, namely A. maioensis . Some individuals of the polyphyletic taxon A. irregularis also fell within the A. maioensis clade. One of them was from the population from Porto Cais, on Maio Island, and the other from Baia Grande de Derrubado, Boa Vista Island. Once that we have designated the lectotype for the taxon Conus irregularis G.B. Sowerby II, 1858 and its type locality as “Estancinha, north of Sal Rei, Boa Vista Island”, and established that this is a synonym (form) of A. crotchii (see above), it becomes clear that the irregularis -like specimen from Boa Vista in the maioensis clade is not conspecific with A. irregularis (= A. crotchii ), but with A. maioensis . This indicates that the distribution range of A. maioensis is not restricted to Maio Island, as it expands to Boa Vista Island. Furthermore, the recently described species A. zinhoi from south Boa Vista Island also fell within the A. maioensis clade, and it is therefore another synonym (form) of A. maioensis . The holotype of A. cossignanii is virtually identical to A. crioulus , a form of A. maioensis . The alleged differences in shell length and spire profile were not tested, and the minimal differences in shell pattern do not justify a separation at the species level. The recently described A. decolrobertoi is likely a juvenile of the population of A. maioensis from Praia Real, north Maio (which had previously been introduced as a separate species named A. marcocastellazzii ). This population is characterized by a predominance of greenish shades on the shell pattern. Other than that, it is merely another morph of A. maioensis .
MNCN |
Museo Nacional de Ciencias Naturales |
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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Genus |
Africonus maioensis ( Trovão, Rolán & Félix-Alves, 1990 )
Tenorio, Manuel J., Abalde, Samuel, Pardos-Blas, José R. & Zardoya, Rafael 2020 |
Africonus decolrobertoi
Cossignani T. & Fiadeiro R. 2017: 28 |
Africonus marcocastellazzii
Cossignani T. & Fiadeiro R. 2014: 14 |
Africonus cossignanii
Cossignani T. & Fiadeiro R. 2014: 18 |
Conus crioulus
Tenorio M. J. & Afonso C. M. L. 2004: 30 |
Conus maioensis
Monteiro A. & Tenorio M. J. & Poppe G. T. 2004: 57 |
Conus maioensis Trovão, Rolán & Félix-Alves, 1990: 71
Trovao H. F. M. & Rolan E. & Felix-Alves A. V. 1990: 71 |
Africonus zinhoi
Africonus zinhoi Cossignani, 2014: 19 . |
Conus irregularis
Monteiro et al. 2004 : pl. 103, figs 1, 4, 6–7 |