VERMIOLOGY. 



PLATE LXXXTX. 



ECHINUS LAMARCKII 

 LAMARCK'S ECHINUS 



OR 



CHINESE SEA URCHIN 



MOLLUSCA. 

 GENERIC CHARACTER. 



Body roundish, covered with a bony sutured crust, and usually 

 furnished with moveable spines : mouth placed beneath, and gene- 

 rally five valved. 



SPECIFIC CHARACTER. 



Somewhat violaceous ; conic, with ten spaces ; the five larger di- 

 vided in the middle with a suture^ and beset with numerous trans- 

 verse rows of tubercles : mouth somewhat ten angled. 



Echinus Lamarckii i sub-violaceus, conicus areis decern : arearum 

 majorum medio sutura interstincto : verruca- 

 rum seriebus transversis plurimis; ore sub- 

 decagono. 



This very choice and rare example of the Echinus tribe is we 

 believe, a new species, and under this persuasion we have much 

 pleasure in distinguishing it by the name of Echinus Lamarckii, in 



