Echinocucumis Sars 1859

• Main Authors: O'Loughlin, P. Mark, Skarbnik-López, Jessica, Mackenzie, Melanie, VandenSpiegel, Didier
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Echinodermata; Holothuroidea; Dendrochirotida; Ypsilothuriidae; Echinocucumis; Antarc*; Antarctica; E. Antarctica; Enderby Land
• Online Access: https://doi.org/10.5281/zenodo.12213627; http://treatment.plazi.org/id/039B87A1FFA6C749FF27FA93FB4AFA61

Echinocucumis Sars, 1859 Type species (type locality; diagnostic characters). Echinocucumis hispida (Barrett, 1857) (Norway; sub-spherical body with vertically up-turned oral and anal ends, body 10 mm wide (width of U-shape), ventral tube feet prominent, dorsal tube feet inconspicuous, plates with single composite marginal spine). Other assigned species (type localities; diagnostic characters) . Echinocucumis globosa (Ohshima, 1915) (Kyushu; body spherical, 9.5 mm long, dorsal and ventral tube feet, ossicle spines reduced or absent); E. hispida var. atypica Deichmann, 1930 (Havana; spines sometimes central on plates, spines more slender and tall than E. hispida ); E. kirrilyae O’Loughlin, 2009 (E Antarctica, Enderby Land; body fusiform, 6 mm long, tube feet ventral only, composite spines dendritic); E. multipodia Cherbonnier, 1965 (Cameroon; spherical body, 7 mm long, tube feet around body, scales lack spines); E. paratypica Ludwig & Heding, 1935 (Somalia; U-shaped body, 8.5 mm long, long tapered up-turned oral and anal ends); E. sphaericum (Sluiter, 1901) (E Indonesia; U-shaped body, 18 mm long, abundant ventral tube feet, numbers of composite spines per scale); E. tenera Cherbonnier, 1958 (Sierra Leone; U-shaped body, 25 mm long, dorsal and ventral tube feet). Diagnosis . Mid-body sub-spherical, tapered non-retractile oral and anal ends, usually upturned; calcareous ring cucumariid-like, lacking posterior prolongations; tentacles 10, digitiform, unequal in size; tube feet sparse or absent, slender, restricted to ambulacra; body invested with large imbricating scales that are single-layered perforated plates, each scale with predominantly one tall spine arising near plate margin. Remarks . Echinocucumis Sars, 1859 has been assigned to the Ypsilothuriidae Heding, 1942 in the order Dactylochirotida Pawson & Fell, 1965. Smirnov (2012) abolished the Dactylochirotida and referred all the included taxa to the Dendrochirotida. Smirnov (2012) assigned the ypsilothuriid genus Echinocucumis to the subfamily ...