222 PERCY SLADEN TRUST EXPEDITION 



Previously knoivn Distribution. Near Cape Verde Is. (Topsent and Schulze) ; 

 Sumatra (Schulze) ; 1 Eastern Pacific (Wilson). 



Register Nos., Locality, &g. i., ii., iir., iv., iva., Saya de Malha, 8.9.1905, 

 C. 21, 450 fathorns. 



LIST OF LITERATURE REFERRED TO. 



1893. Dendy, A. " Studies on the Comparative Anatomy of Sponges, V. Observations on the Structure 

 and Classification of the Calcarea Heterocoela." (Quart. Journ. Micro. Sci., vol. 35.) 



1903. Ijima, I. "Studies on the Hexactinellida. Contribution III." (Journ. Coll. Sci. Imp. Univ. 

 Tokyo, vol. IS.) 



1880. Schulze, F. E. " On the Structure and Arrangement of the Soft Parts in Eaplectella aspergillum." 

 (Trans. Royal Soc. Edin., vol. 29.) 



1887. Id. Report on the Hexactinellida of the " Challenger " Expedition. 



1899. Id. " Amerikanische Hexactinelliden nach dem Materiale der ' Albatross '-Expedition." 



1904. Id. Hexactinellida of the " Valdivia " Expedition. 



1904. Topsent, E. " Sarostegia oculata. Hexactinellida nouvelle des iles du Cap- Vert." (Bull. Mus. 

 Oc6anographique de Monaco, No. 10, 20 Mai 1904.) 



1904. Wilson, H. V Sponges of the " Albatross " Expedition of 1891. 



