178 



DR. J. PEARSON OX MARINE FAUNA 



[Feb. 1, 



the tops of the spires are very imperfect and irregular. The 

 buttons are very irregular in shape, and the more perfect speci- 

 mens suggest a derivation from perforated plates (text-fig. 17 B). 



Diameter of tables up to 37 p.. 



Length of buttons 22 fx. 



General distribution. East Africa, Japan. 



Text-fig. 17. 



Holothuria dqflemii. Spicules. 



A. Tables, from above. X 860. 



15. " Buttons," X 640. 



C. Tables (side view). X 670. 



Holothuria impatiens Forskal. 



Fistularia impatiens Forskal, 1775 (1). 



Trepang impatiens Jaeger, 1833 (3). 



Holothuria fulva Quoy & Gaimard, 1833 (4). 



'I hyone impatiens Blainville, 1834 (5). 



Sporadipus impatiens Grube, 1840 (7). 



Holothuria botellus Selenka, 1867 (10). 



Holothuria impatiens Lampert, 1885 (18); Theel, 1886 (20); 

 Bell, 1886 (19), 1887 (22) : Ludwig, 1887 (23) ; Skater, 1887 (24), 

 1901 (28); Koehier & Yanev, 1908 (31). 



