THIS important memoir is the first instalment of a general monograph of the rich Hexactinellid fauna of the Japanese seas, upon the study of which the author has been engaged for the last seven ...

Part and counterpart of a well-preserved specimen of Gondekia lancifer (Reimann, 1945a), and a well-preserved specimen of Pseudohydnoceras erraticum Reimann, 1935, are described from the Wanakah ...