Complex sentence: In 1908, Henry Augustus Pilsbry reported the discovery, describing the snail as a subspecies of the widely distributed "Succinea ovalis" Say, 1817, which he placed in the Section "Novisuccinea" (Pilsbry 1948).
Split into simpler sentences: In 1908, Henry Augustus Pilsbry reported the discovery, describing the snail as a subspecies of the widely distributed "Succinea ovalis" Say, 1817. Pilsbry placed "Succinea ovalis" in the section "Novisuccinea" (Pilsbry 1948).