WoRMS source details
Rodríguez, A., Hernández, J. C., Clemente, S. & Coppard, S. E. 2013. A new species of Diadema (Echinodermata: Echinoidea: Diadematidae) from the eastern Atlantic Ocean and a neotype designation of Diadema antillarum (Philippi, 1845). Zootaxa 3636, 144-170.
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Rodríguez, A.; Hernández, J. C.; Clemente, S.; Coppard, S. E.
2013
A new species of Diadema (Echinodermata: Echinoidea: Diadematidae) from the eastern Atlantic Ocean and a neotype designation of Diadema antillarum (Philippi, 1845)
Zootaxa
3636: 144-170
Publication
Available for editors [request]
Diadema africanum sp. nov. Rodríguez et al. 2013 occurs in the eastern Atlantic Ocean at depths of 1–80 meters off Madeira
Islands, Salvage Islands, Canary Islands, Cape Verde Islands, Sâo Tome Islands and at the continental coast off Senegal
and Ghana. This species was previously considered an eastern Atlantic population of D. antillarum. Genetic distances
between the holotype of D. africanum and the neotype of D. antillarum herein designated, measured 3.34% in Cytochrome
oxidase I, 3.80% in ATPase-8 and 2.31% in ATPase-6. Such divergence is similar to that already highlighted between other
accepted species of Diadema. Morphometric analysis of test, spine and pedicellarial characters also separated D. africanum
from D. antillarum and reveals that this new species is morphologically similar to D. antillarum ascensionis from the
mid Atlantic. The tridentate pedicellariae, which have been shown to have diagnostic characters which discriminate
among species of Diadema, occur as both broad and narrow valved forms in D. antillarum from the western Atlantic. In
D. africanum the tridentate pedicellariae occur only as a single form which is characterized by moderately broad and
curved valves, with an expanded distal gripping region. This form of tridentate pedicellaria is very similar to that of D.
antillarum ascensionis from the central Atlantic, with only slight variations in valve serration and valve curvature differentiating
the two forms.
Eastern Atlantic
Date
action
by
Diadema africana Rodríguez, Hernández & Clemente, 2010 (status source)
Diadema africanum Rodríguez, Hernández, Clemente & Coppard, 2013 (original description)
Diadema antillarum (Philippi, 1845) (subsequent type designation)
Diadema africanum Rodríguez, Hernández, Clemente & Coppard, 2013 (original description)
Diadema antillarum (Philippi, 1845) (subsequent type designation)
Canary Islands Exclusive Economic Zone for Diadema africanum Rodríguez, Hernández, Clemente & Coppard, 2013
Cape Verde for Diadema africanum Rodríguez, Hernández, Clemente & Coppard, 2013
Ghanaian Exclusive Economic Zone for Diadema africanum Rodríguez, Hernández, Clemente & Coppard, 2013
Gulf of Guinea for Diadema africanum Rodríguez, Hernández, Clemente & Coppard, 2013
Madeira for Diadema africanum Rodríguez, Hernández, Clemente & Coppard, 2013
Ngor Island for Diadema africanum Rodríguez, Hernández, Clemente & Coppard, 2013
Salvages Islands for Diadema africanum Rodríguez, Hernández, Clemente & Coppard, 2013
São Tomé for Diadema africanum Rodríguez, Hernández, Clemente & Coppard, 2013
Cape Verde for Diadema africanum Rodríguez, Hernández, Clemente & Coppard, 2013
Ghanaian Exclusive Economic Zone for Diadema africanum Rodríguez, Hernández, Clemente & Coppard, 2013
Gulf of Guinea for Diadema africanum Rodríguez, Hernández, Clemente & Coppard, 2013
Madeira for Diadema africanum Rodríguez, Hernández, Clemente & Coppard, 2013
Ngor Island for Diadema africanum Rodríguez, Hernández, Clemente & Coppard, 2013
Salvages Islands for Diadema africanum Rodríguez, Hernández, Clemente & Coppard, 2013
São Tomé for Diadema africanum Rodríguez, Hernández, Clemente & Coppard, 2013
Neotype TFMC NHMTFMCBMEQ/00237, geounit Isla de la Juventud, identified as Diadema antillarum (Philippi, 1845)
Diagnosis
Test and spines typically black with a red tinge and a turquoise sheen when viewed in direct sunlight. The ... [details]
Etymology
Species name refers to the geographical distribution of the species on the western coasts of Africa. It is ... [details]
Status
This taxon has now been validly described under the name Diadema africanum Rodríguez, Hernández, Clemente & ... [details]
Type locality
Santa Cruz de Tenerife, Canary Islands, Spain [details]
Type material
HT: TFMC BMEQ/00232; PT: TFMC BMEQ/00233, TFMC BMEQ/00234, TFMC BMEQ/00235 TFMC = Museo de Ciencias Naturales de ... [details]