252 



1886. verrillii. Théel: The Challenger Holothurioidea II. pag. 12, Pl. I fig. 1. 



insolens. „ „ „ pag. 13. Pl. I fig. 3. 



acuUata. „ „ „ pag. 13, Pl. I fig. 2. 



challenged „ „ „ pag. 14, Pl. I fig. 4. 



abyssicola „ „ „ pag. 14, Pl. I fig. 1 1 . 



1889. rodea. Sluiter: Nachträgliches über die Echinoderm Fauna, pag. 108, 



fig. 11-14. 



ludwigi. „ „ „ „ pag. 108, 



fig. 4-9. 



1894. pacifica. Ludwig: The Holothurioidea. pag. 174, PI. 18, fig. 13—19. 

 1901. bicornis. Sluiter: Die "Siboga" Holothurien. pag. 131, Pl. X fig. 15. 



suspecta. „ „ „ pag. 132, Pl. X fig. 14. 



1905. denticulata. Koehler & Vaney : Investigator, pag. 105, PI. 15 fig. 36-39. 



conferta „ „ pag. 105, PI. 15 fig. 26-29. 



errata „ „ pag. 106, PI. 15 fig. 14-16. 



tristis „ „ pag. 107, PI. 15 fig. 17-18. 



1908. duodactyla. Clark: The Apodous Holothurians. pag. 26 & 101. Pl. IV 

 fig. 1-7. 



1915. kagoshimensis O h s h i m a : Rep. on the Holoth. coll. by ''Albatross", 

 pag. 283, Pl. 1 1 fig. 34 a— e. 



1924. bipedata. Clark: The Synaptinae. pag. 497, PI. 8 fig. 1—2 & PI. 10 fig. 7. 



1925. uncinata (Hütt on). Th. M orten sen: Echinoderms from New Zea- 



land, pag. 367, fig. 48—52. 

 1928. suensoni n. sp. 

 javaensis „ 

 magnihamula „ 

 ramiurna „ 



That these species may be regarded as valid I quite agree 

 with Clark, but for which reason he has not accepted the 

 two species inilexa and timida Koehler & Vaney, I do not see. 

 Koehler & Vaney have not described more than one sort of 

 anchors and anchor-plates in errata, though they had complete 

 specimens; therefore we are hardly entitled to suppose that anchors, 

 anchor-plates and rods as figured from inflexa may be found in 

 specimens of errata. I for my part am convinced that inflexa is a 

 valid species, and I do no not se why timida should be synonymous 

 with challenged. However, as these species are not represented in 

 the collection at hand these questions cannot be solved here. 



Protankyra bidentata (Woodward & Barrett). 



Synapta bidentata. Woodward & Barrett. 1858. On the genus 

 Synapta. pag. 365, Pl. XIV fig. 23—25. 



