Holothuria (Semperothuria) granosa Cherbonier, 1980: 66, fig. 25A-K; Samyn, 2003:77.
Type data: EcHh 2727; Station 1/16, Tuléar, Luce, North of Fort-Dauphin (Madagascar); intertidal; coll. A. Crosnier; 1960; well preserved; poorly relaxed; ventro-longitudinal dissection with anal side severely damaged; calcareous ring removed from specimen; specimen partly eviscerated.
Anatomical description: 82 mm long; ± 20 mm wide; bivium arched; trivium ot flattened; mouth terminal; anus terminal; dorsal body wall beige mottled with brown; ventral body wall beige-brown; tentacles black; dorsal appendages brown; ventral tube feet brown; dorsal appendages dispersed regularily over complete bivium; ventral tube feet dispersed regularily over complete trivium; bivium and trivium not separated by a lateral fringe of appendages; body wall 2 mm thick, smooth to the touch; tentacles rather small, 13 counted; radial plates with slightly indented posterior side; radial plates roughly 2 times wider than interradial ones; radial plates roughly of same length as interradial ones; number of tentacle ampullae could not be determined; three Polian vesicles, 12-19 mm long; number of stone canals could not be determined; gonad not observed; longitudinal muscles narrow and flat, bifid, attached at edges; Cuvierian tubules not observed.
Ossicle description: tentacles with nearly uniform sized rugose rods; dorsal body wall with tables with reduced smooth disc, high spire ending in a Maltese cross and rugose rods; ventral body wall with rugose rods only; longitudinal and cloacal retractor muscles, cloaca, respiratory tree and gut devoid of ossicles; ossicle assemblage of dorsal and ventral appendages and rete mirabile was not assessed.
Known distribution: île Sainte Luce (Madagascar).
Taxonomic decision: valid species (confirmed after re-examination of the holotype).
For original description click here.
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