TY - Generic T1 - Die stolidobranchiaten der deutschen Tiefsee-Expedition Y1 - 1904 A1 - Michaelsen, W. ER - TY - Generic T1 - Tunicata (Manteltiere) Y1 - 0 A1 - Hartmeyer, R. ER - TY - Generic T1 - Die krikobranchien ascidien des westlichen Indischen Ozeans: Didemniden Y1 - 1920 ER - TY - Generic T1 - South African ascidians collected by Th. Mortensen with some additional material Y1 - 1964 A1 - Millar, R.H. ER -