Pseudostichopus hyalegerus Sluiter, 1901

(Fig. 19)

Meseres hyalegerus Sluiter, 1901: 12 .

Pseudostichopus hyalegerus (Sluiter, 1901): O’Loughlin & Ahearn, 2005: 170, 10a, 12n – p (synonymy and records before 2005).

Material examined. Non-type material: IE-2007-793 (4 specimens, dredged between Nosy-Bé and Banc du Leven); IE-2007-796 (2 specimens, dredged between Nosy-Bé and Banc du Leven); IE-2007-799 (3 specimens, dredged between Nosy-Bé and Banc du Leven); IE-2007-800 (1 specimen, dredged between Nosy-Bé and Banc du Leven); IE-2007-802 (18 2 specimens, dredged between Nosy-Bé and Banc du Leven); IE-2007-805 (1 specimen, dredged in front of Nazendry Bay); IE-2007-807 (4 specimens, dredged between Nosy-Bé and Banc du Leven).

Remarks. This species is characterized by having the body wall lacking ossicles, but covered by molluscs, sponge ossicles and foraminiferans (fig. 18).

2. One of the specimens was destructed for SEM imaging.

To date, Pseudostichopus hyalegerus was known only from Japan, Eastern Australia and Indonesia (O’Loughlin, 2002; O’Loughlin & Ahearn, 2005), this record extends its range into the Indian Ocean.