Simpson — A Revision of I Ik; Gnrgo^iellidae. 



45 



Table B. 



The siipertieial ililleieiiLes hclwoL'ii llio two varieties liavin-j; been noted, 

 we may consider the general morpliology of tlie .species, and see to what 

 e.Ktent the varieties are wortliv of distinction. 



