192956
Shell description The shell of this species is biconvex , the altitude about half the diameter , angular at the periphery , whitish , more or less brown-tinted , the base dappled with oblong spots or streaks arranged concentrically , having a dark band along the basal suture , the upper surface sparsely spotted near the periphery , and having a brown band revolving below the suture , usually with a fainter one above it .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None