50 SPOLIA ZEYLANICA. 



from the Maldives and the Seychelles, a collection from the 

 Red Sea sent by Mr, Cyril Crossland, Marine Biologist to 

 the Sudan Government, and the collections made by the 

 Federal Investigation ship "Endeavour" and the R. I. M. S. 

 " Investigator " (other than those already described by MM. 

 Koehler and Vaney ) . Through the kindness of the authorities 

 concerned I have also been able to examine a very large and 

 varied collection of Holothurians from the following Museums : 

 the Indian Museum, Calcutta ; the Australian Museum, 

 Sydney ; the South African Museum, Cape Town ; the Durban 

 Museum, Natal ; the National Museum of Ireland, Dublin ; 

 the United States National Museum, Washington, D.C. ; the 

 Museum of Comparative Zoology, Harvard, Cambridge, 

 Mass. ; Zoologisches Institut, Kgl. Bayerische Universitat, 

 Munich ; Naturhistorisches Museum der Senckenbergischen 

 Naturforschenden Gesellschaf t, Frankfiirt ; Museum d'Histoire 

 Naturelle, Geneva. An interesting collection has also been 

 received from the Science College, Imperial University, Tokyo. 

 The following species are described in the present Paper : — 



Holothuria hamata, n. sp. 

 Holothuria maculosa, n. sp. 

 Holothuria marmorata (Jager). 

 Holothuria argus (Jager). 

 Holothuria vitiensis, Semper. 

 Holothuria graffei. Semper. 

 Holothuria glaberrima, Selenka. 

 Holothuria lubrica, Selenka. 

 Holothuria cinerascens (Brandt). 

 Holothuria atra, Jager. 

 Holothuria edulis, Lesson. 

 Holothuria monacaria (Lesson). 

 Holothuria vagabunda, Selenka. 

 Holothuria fusco-cinerea, Jager. 

 Holothuria fusco -rubra, Theel. 

 Holothuria pardalis, Selenka. 

 Holothuria maculata (Brandt). 

 Holothviria rugosa, Ludwig. 

 Holothuria discrepans, Semper. 

 Holothuria impatiens (Forskaal). 



