Originally attributed to Lovén by Mortensen, but since Lovèn's name was a manuscript name Mortensen is to be ... [details]

The name Echinoglycus was first used in Leske (1778: p. 197) where "Echinoglycus irregularis" appears (only) as ... [details]

The name Echinotrochus was first used in Leske (1778: p. 209) where "Echinotrochus rosaceo" appears (only) as ... [details]

Authority often given as Klein, 1734. Being pre-Linnean, however, the name is not available. The first available ... [details]

Objective junior synonym of Moulinia L. Agassiz, 1841, which is based on a juvenile specimen of Encope emarginata ... [details]

It is quite possible that M'Clelland's Echinarachnius conchatus is really identical with Laganum depressum; but his ... [details]

First used in Leske (1778: p. 209) where "Echinotrochus rosaceo" appears (only) as translation of Van Phelsum's ... [details]

The clade composed of the Atlantic species Encope aberrans and E. michelini was the first to have split from ... [details]

Erroneously cited as Encope nummularia (instead of Mellita nummularia) in the synonymy list of Encope emarginata by ... [details]

Mortensen (1948: p. 151) commented on the status of Hesperaster: "There cannot be the slightest doubt but that ... [details]

The parent taxon (Hesperaster) was considered a junior synonym of Ammotrophus by Mortensen (1948: p. 151). While he ... [details]

Since a junior synonym of L. fragile Mazzetti, namely L. delicatum is older than Thiéry's replacement name L. ... [details]

That Clark's Laganum mirabile is nothing but the young Clypeaster rarispinus is beyond doubt; the figures given by ... [details]

Synonymized with Peronella Gary, 1855 by Mortensen (1948: p. 251), but strictly indeterminate at present. [details]

Based on a juvenile specimen of Encope emarginata (fidé A. Agassiz, 1863). [details]

Considered a subspecies of Mellita quinquiesperforata (Leske, 1778) by Mortensen (1948). [details]