268 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.48. 



Colochirus minutus Ludwig, Beitrage zur Kenntniss der Holothurien, 1874, p. 13, 



pi. 6, figs. 16a-c. 

 Colochirus armatus v. Marenzeller, Neue Holothurien von Japan und China, 



1881, pp. 132-134, pi. 5, figs. 8, SAa, b. 

 Colochirus australis, var. armatus Ludwig, Holothurien des Kieler Museums, 



1883, p. 161. — Augustin, Japanische Seewalzen, 1908, p. 29. 

 Colochirus pygmseus Theel, Challenger Holothurioidea, pt. 2, 1886, p. 83, pi. 4, 



fig. 9. 



Station 4895. One specimen. 



Station 4935. One specimen. 

 Habitat. — Cape of Good Hope (Pallas, 1766); Angra Pequena 

 (Ludwig, 1887); Cape Three Points (Clark, 1909). Triest (Sars, 

 1857); Quarnero (Grube, 1840); Lesina, Lissa (Heller, 1868); Cette 

 and Nice (Selenka, 1867). Bahia (Theel, 1886). Bowen and Sydney 

 (Ludwig, 1874); Port Molle and Port Jackson (Bell, 1884; Theel, 

 1886); New South Wales and West Australia (Lampert, 1885). 

 Dampier Island (Lampert, 1889); Billiton (Sluiter, 1887); Amboina 

 (Ludwig, 1888; Sluiter, 1894); Sarassa Island; Molo Strait; Sala- 

 watti; Jedan Island (Sluiter, 1901). Ceylon (Pearson, 1903); Tor, 

 coast of Sinai (Heifer, 1912). Japan (v. Marenzeller, 1881); Tokyo 

 Bay (Augustin, 1908; Mitsukuri, 1912); MisaM; Yokohama; Shimoda; 

 Niishima; Ago Bay; Kagoshima; Hokkaido (Mitsukuri, 1912); off 

 Goto Islands, west of Kyushu; off Cape Sata, South of Kyushu. 



Genus THYONE Oken. 



70. THYONE MULTIPES Augustin. 



Thyone multipes Augustin, Japanische Seewalzen, 1908, pp. 27-28, pi. 2, fig. 2, 

 text-fig. 19. 



Station 5055. Seven specimens. 



Station 5057. Three specimens. 



Station 5094. A pharyngeal mass with tentacles. 

 The largest specimen measures 28 mm. in length and 10 mm. in 

 diameter. Deposits in general perisome are so sparse as to be easily 

 overlooked. These are delicate table-like buttons with lozenge- 

 shaped disk and two-pillared spire. The disk measures 33-85/* in 

 diameter, averaging 68/*, with 4-13, but commonly 6 or 7 holes. 

 Spire about 25/* high, with the pillars connected by a crossbeam, and 

 with 4-8 short teeth at the top. Towards the anal region the tables 

 become smaller but have more holes. In the introvert the tables 

 are larger and more robust, measuring 76-125/* in diameter, with 

 holes numbering up to 17, and the spire is 35-50/* high. Very few 

 complicated rosettes are also found in this region. Besides the 5 

 latticed anal teeth there are found several large round plates, 0.1-0.14 

 mm. in diameter, and with numerous holes, radially arranged around 

 the anus. Pedicels with a well developed end-plate with the mean 

 diameter of 96** (80-113/*), and perforated with numerous irregular 



