EUPLECTELLA MARSHALLI. 87 



Yries Island. Notliing further is known about the circumstances 

 of its capture. The specimen was kindly given me by Dr. 

 KiSHiNOUYE for investigation and I hold it as belonging to the 

 species now under consideration. It contained in the gastral 

 cavity a single Spoi^gicola venusia. 



Further on May 7, 1900, the U. S. Fish Commission Steamer 

 ' Albatross ' obtained by means of tangles a small, much 

 macerated Euplectella at her Station 3700 (Senoumi in Suruga 

 Gulf; depth only 73 fms. [133 m.]; bottom volcanic mud and 

 sand). I was on board the ship at the time and although I could 

 not undertake a microscopical examination of the specimen, I 

 have judged it to belong to E. marshaUi from its general external 

 appearance. The Crustacean inmate was Spongicola venusia. The 

 other catches at the same station were quite similar to those 

 usually obtained at Doketsba. 



The general color of the sponge in the fresh state may be 

 called a light salmon or a pinkish buflf. It is deeper and 

 brighter than in E. iniperialis. When dried or preserved in 

 alcohol, specimens become entirely colorless. 



In fresh specimens obtained by me July 17, 1895 and April 

 1, 1900, I have noticed with the naked eye numerous small spots 

 of a deep orange-yellow in the substance of the sponge-wall. 

 The larger spots, irregular in outline, measured nearly half a 

 millimeter across. They were most distinctly visible on the 

 gastral side but were also present imbedded in the deeper parts 

 of the parietal ledges. I believe the same spots are to be seen 

 in a greater or less quantity in all individuals and at all seasons 

 of the year. When put into alcohol, the orange-yellow color is 

 dissolved away and the spots become lost in the general white- 



