DENDROCHIROTAE. i33 



cles, each of which measures 15 — 18 cm. iu length. The 

 calcareous corpuscles of the integument are small disks 

 measuring 0.07 mm. in length and 0.05 mm. in width. 

 They are pierced in the middle by 4 diametrically opposite 

 openings, and peripherally by numerous, much smaller 

 openings. 



In the direction of the longitudinal axis of the disk 

 two vertical calcareous rods 0.04 mm. high and termina- 

 ting at their tips in 2 to 4 prongs are situated on the 

 calcareous material which separates the four larger ope- 

 nings. These rods are united together by a transverse 

 bridge about on the middle of their height. 



In the anterior parts of the body the tube-feet are present 

 only on the radii; as far as I can judge from the pre- 

 sent fragment, they are distributed further backwards on 

 the interradii also. 



A more detailed description of this species can only be 

 given when more complete specimens are available. 



ASPIDOCHIROTAE. 

 26. SHchopus regalis Selenka (Cuvier sp.) 



Holothuria regalis Cuvier, Règne animal. 1817. — • Stichopus 

 regalis Selenlca, Zeitschr. f. wissensoh. Zool. XVII. 1867. 

 p.p. 317—318. Taf. XVIII. Fig. 82. — Semper, Holothurien. 

 1868. p. 275. — Ludwig, Mittheil. zool. Station Neapel. I. 

 1879. p. 569. 



One specimen from Naples. 



27. Stichopus unttnas Semper (Jageb sp.) 



Trepang ananas Jager, Ue Holothuriis. 1833. p, 24. Tab. Ill, 

 Fig. 1. — Stichopus ananas Semper, Holothurien. 1368. p. 275. — 

 Ludwig, Zeitschr. f. wissensch. Zool. XXXV. 1881. p.p. 591— 592. 



One specimen from the Bay of Geelvink. 



28. Stichopus cMofonotus Brandt. 



Brandt, Prodrom. 1835. p. 50. — Semper, Holothurien. 1868. 

 p. 275. — Ludwig, Zeitschr. f. wissensch. Zool. XXXV. 1881. 

 p. 591. 



Four specimens from the Indian Ocean and one from 

 Macassar. 



Notes troixi tlie Leytlen JMuseum, Vol. IV. 



