References for species Robertus crosbyi (Kaston, 1946)

Species Reference Comment Distribution
Ctenium crosbyi Kaston 1946: 7, f. 52
  (Df). USA, Canada
Robertus crosbyi Brignoli 1983c: 411
(PDF not available.)     
Robertus crosbyi Paquin & Dupérré 2003: 218, f. 2435-2437
(PDF not available.)  (f, fig. m).  
Robertus crosbyi Dupérré, Paquin & Buckle 2006: 155, f. 27-28
(PDF not available.)  (Dm).  
None noted here.
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