(gxiiiB^ (Utueeum ((Uaturaf J^^^torj). 



T/i7s is No. oCt) of 25 copies of 

 Catalogtie of the Chaetopoda, Part /., 

 Arenicolidie, printed on Special paper. 



PRESENTED 



BY 



^bc n:ru0tec0 



OF 



THE BRITISH MUSEUM. 



