Sib o g a-Expeditie 



XLIX ' d 



THE PROSOBRANCHIA OF THE SIBOGA 



EXPEDITION 



15 Y 



M. M. SCHEPMAN 



Bosch en Duin near Utrecht (Holland) 



PART IV 



RACHIGLOSSA 



With 7 plates 



: : ■• 



late E. J. BEILL 



ÏXT.USHERS AND PRINTERS 



LEYDEN igll 



