NOTICE. 305 



N. B. 



A Correction with Regard to the Generic Name Placosoma 

 applied by me to an Euplectellid. 



In ContrilMition III., I described a new Enplectellid genn.s and species 

 nnder the name of Placofioma para(Jict//?riû. Now, Professor F. E. Schulze, 

 in a letter, has very kind!}' pointed ont to nie the fact, which I liad 

 entirely overlooked, that the generic name " IVacosoma " had been pro- 

 occupied, having been employed bv Tschudi for a reptilian genus in 1847 

 (Arch. f. Natnrgesch., Bd. 13, I., p. ."^O). I therefore beg to withdraw that 

 generic name as applied Iw me to the Enplectellid and to substitute for it 

 " Bolosoma " (-/} ,9(^/,o: = cluinp), — a designation, for the suggestion of which 

 I am likewise indebted to Professor Schulze. PIencof<n-th, the Enplectellid 

 in question should go hv the name of 



Bolnsoina paradichpim. 



