Porcellio (Metoponorthus) buddelundi Verhoeff, 1901 accepted as Porcellionides buddelundi (Verhoeff, 1901) (original description)
Porcellio (Metoponorthus) molleri Verhoeff, 1901 accepted as Porcellionides molleri (Verhoeff, 1901) accepted as Porcellionides sexfasciatus (Budde-Lund, 1885) represented as Porcellionides sexfasciatus sexfasciatus (Budde-Lund, 1885) (original description)
Porcellio (Metoponorthus) phaleronensis Verhoeff, 1901 accepted as Orthometopon phaleronense (Verhoeff, 1901) (original description)
Porcellio cattarensis Verhoeff, 1901 accepted as Porcellionides myrmecophilus (Stein, 1859) represented as Porcellionides myrmecophilus myrmecophilus (Stein, 1859) (original description)
Porcellio dispar Verhoeff, 1901 (original description)
Porcellio fiumanus Verhoeff, 1901 accepted as Porcellium fiumanum (Verhoeff, 1901) represented as Porcellium fiumanum fiumanum (Verhoeff, 1901) (original description)
Porcellio fossuliger Verhoeff, 1901 accepted as Protracheoniscus fossuliger (Verhoeff, 1901) (original description)
Porcellio laevis achilleionensis Verhoeff, 1901 accepted as Porcellio achilleionensis Verhoeff, 1901 (original description)
Porcellio laevis var. marinensis Verhoeff, 1901 (original description)
Porcellio naupliensis Verhoeff, 1901 accepted as Leptotrichus naupliensis (Verhoeff, 1901) (original description)