THOMA, ROGER F., Midwest Biodiversity Institute, 4673 Northwest Parkway, Hilliard, Ohio, 43026 USA.

• Zootaxa Vol. 4162 No. 1: 8 Sept. 2016 - Article
  Cambarus (Jugicambarus) adustus, a new species of crayfish from northeastern Kentucky delimited from the Cambarus (J.) aff. dubius species complex 
  Abstract  PDF (3MB)
• Zootaxa Vol. 3900 No. 4: 24 Dec. 2014 - Article
  

  Cambarus (Puncticambarus) callainus, a new species of crayfish (Decapoda: Cambaridae) from the Big Sandy River basin in Kentucky, Virginia, and West Virginia, USA

  
  Abstract  PDF (2MB)
• Zootaxa Vol. 3980 No. 4: 1 Jul. 2015 - Article
  

  Cambarus (Jugicambarus) pauleyi, a new species of crayfish (Decapoda: Cambaridae) endemic to southcentral West Virginia, USA, with a re-description of Cambarus (J.) dubius

  
  Abstract
• Zootaxa Vol. 4243 No. 3: 16 Mar. 2017 - Article
  Cambarus (C.) appalachiensis, a new species of crayfish (Decapoda: Cambaridae) from the New River Basin of Virginia and West Virginia, USA
  Abstract
• Zootaxa Vol. 4269 No. 4: 24 May 2017 - Article
  

  A case of Appalachian endemism: Revision of the Cambarus robustus complex (Decapoda: Cambaridae) in the Kentucky and Licking River basins of Kentucky, USA, with the description of three new species

  
  Abstract