Erroneous— Psammechinus microtuberculatus (Blainville, 1825)

Reports for the Azores:

non Echinus microtuberculatus Blainville, 1825 — Barrois 1888: 109 [misidentified of P. miliaris]; non Psammechinus microtuberculatus (Blainville, 1825) — Nobre 1938: 111–112 [based on Barrois 1888]; Marques 1983: 5 [ju- venile Paracentrotus lividus]; Castro & Viegas 1983: 24 [misidentified of P. miliaris]; Pereira 1997: 334 [based on previous misidentifications]; Haddad & Barreiros 2008: 9 [based on previous misidentifications]; Micael & Costa 2010: 323 [based on previous misidentifications]; Micael et al. 2012: 4 [based on previous misidentifications].

Type locality: Mediterranean Sea.

See: Mortensen (1943a: 139–147, figs. 56c, 58c, 59b, 60a, 61, 62, 63a, pl. 10, figs. 6–9, pl. 17, figs. 6–9, pl. 58, figs. 10, 16–18, 22).

Occurrence: restricted to the Mediterranean Sea (Mortensen 1943a).

Depth: 4–100 m (Tortonese 1965).

Habitat: on rocky substrates and Posidonia prairies to muddy substrates where it feeds on animal matter (Mortensen 1943a).

Larval stage: planktotrophic (Emlet 1995).

Remarks: see remarks under Psammechinus miliaris .