H. pusillus Fricke 2004

English common names. Pygmy Thorny Seahorse, Dwarf thorny seahorse.

Synonyms. None.

Holotype. MNHN 2004-2029. Paratypes: MNHN 2002-3234, SMNS 23384.

Type locality. Loyalty Islands (holotype), Loyalty Islands and Province Nord, Grand Terre, New Caledonia (paratypes) .

Distribution. France (New Caledonia).

Notes. This species is known only from the holotype and two paratypes. It very closely resembles H. jugumus although the meristic data do not agree. Further investigation is warranted.