Synaptula hydriformis ( Lesueur, 1824 )

Madeira, Patrícia, Kroh, Andreas, Cordeiro, Ricardo, De, António M., Martins, Frias & Ávila, Sérgio P., 2019, The Echinoderm Fauna of the Azores (NE Atlantic Ocean), Zootaxa 4639 (1), pp. 1-231 : 180

Erroneous— Synaptula hydriformis ( Lesueur, 1824)

Reports for the Azores:

non Synaptula hydriformis ( Lesueur, 1824) —? $ Hérouard 1923: 147 [misidentification]; García-Diez et al. 2005: 52 [based on Hérouard 1902].

Type locality: Guadalupe, Caribbean .

See: Lesueur (1824: 162–163, as Holothuria hydriformis ); Deichmann (1954: 407); Laguarda-Figueras et al. (2001: 38–39, figs. 18A–D).

Occurrence: Western Atlantic, from Brazil, northwards to Bermuda including the Gulf of Mexico and the Caribbean ( Deichmann 1954).

Depth: shallow waters, 1–7 m ( Laguarda-Figueras et al. 2001).

Habitat: among algae, in mangrove swamps and reef lagoons (H.L. Clark 1942).

Larval stage: viviparous ( Deichmann 1954).

Remarks: Hérouard (1923) tentatively attributed poorly preserved material (mainly muscle fragments, with no calcareous deposits) collected by Princesse Alice in the Azores (sta 1349: 38°35’00”N, 28°05’45”W), at a depth of 1,250 m to the tropical species Synaptula hydriformis . The depth distribution of this species is restricted to the first few meters, which makes the Azorean reported depth highly unlikely.