New taxa in: A. PEÑAS & E. ROLÁN. Revision of the genera Murchisonella and Pseudoaclisina (Gastropoda, Heterobranchia, Murchisonellidae)

Murchisonella saotomensis Peñas & Rolán, 2013 – holotype

Type locality: Minerio, 35-41 m, in sandy sediments, São Tomé Island