D. R. Helms

18 public-domain plates in the archive

• Peromyscus leucopus noveboracensis 28 Oct 1959
• Blarina brevicauda talpoides 9 Dec 1959
• Blarina brevicauda talpoides 28 Oct 1959
• Mephitis mephitis nigra 28 Jun 1960
• Peromyscus leucopus noveboracensis 17 Jan 1960
• Cryptotis parvus parvus Nov 1959
• Blarina brevicauda talpoides 23 Oct 1959
• Blarina brevicauda talpoides 30 Oct 1959
• Peromyscus maniculatus bairdii 27 Dec 1959
• Microtus pennsylvanicus pennsylvanicus 15 Jul 1960
• Zapus hudsonius americanus 15 Sep 1959
• Peromyscus leucopus noveboracensis 30 Oct 1959
• Didelphis virginiana virginiana 23 Oct 1959
• Cryptotis parvus parvus 26 Dec 1959
• Microtus ochrogaster ochrogaster 26 Jan 1959
• Peromyscus leucopus noveboracensis 17 Jan 1960
• Peromyscus leucopus noveboracensis 9 Dec 1959
• Cryptotis parvus parvus 26 Dec 1959