Paraparaba Rossi, Boll & Leal-Zanchet, 2024

Rossi, Ilana, Boll, Piter Kehoma & Leal-Zanchet, Ana Maria, 2024, Multispecies multicolor: resolving the century-old taxonomic trouble of Geoplana multicolor (Platyhelminthes: Geoplanidae), Zoologia (e 23093) 41, pp. 1-10 : 8-9

Paraparaba Rossi, Boll & Leal-Zanchet , gen. nov.

https://zoobank.org/ 383031C9-9920-4A30-A778-1C7E8BF30099

Type species: Geoplana rubidolineata Baptista & Leal-Zanchet, 2005 .

Diagnosis: Geoplaninae with small-to-medium-sized body, 6–80 mm in length; body slender, with margins nearly parallel; dorsum and ventral side slightly convex; eyes mono-, bi-, and trilobate; pharynx cylindrical; prostatic vesicle extrabulbar, horizontal, or with ventrally oriented proximal portion, with or without forked portion; penis papilla protrusible, conical or cylindrical; ascending portion of ovovitelline ducts lateral to the gonopore canal or the female atrium, joining each other above the female atrium; female canal dorsoanteriorly flexed, arising from the posterodorsal region of the female atrium; female atrium rounded to ovoid, lined with epithelium of multilayered aspect ( Rossi & Leal-Zanchet 2023).

Etymology: From Tupi paraparaba, multicolored, with many colors, a word formed by reduplication of paraba, variegated, with two colors ( Tibiriçá 1984). Additionally, the name could be interpreted as coming from the Greek para, beside, next to, plus the name of the genus Paraba .

Paraparaba impositrix Rossi, Boll & Leal-Zanchet , sp. nov.

https://zoobank.org/ B4735B35-3076-45E7-A86C-971619A85398

Geoplana multicolor : Marcus (1951)

Geoplana multicolor : Froehlich (1955, 1956a, 1956b, 1958)

Geoplana multicolor : Leal-Zanchet & Matos (2011)

Paraba multicolor : Negrete & Brusa (2017)

Holotype: Specimen represented by Marcus (1951: fig. 177). The current location of this specimen is unknown.

Diagnosis: Species of Paraparaba with ferruginous or brownish dorsal band bordered by narrow pale stripes and black body sides; eyes mono- and trilobated; pharynx cylindrical with dorsal insertion displaced posteriorly; prostatic vesicle with globose forked proximal portion; penis papilla conical; female atrium ovoid, with narrow lumen; constriction between male and female atria.

Etymology: A feminine derivation of Late Latin impositor, one that applies or imposes something, an impostor, a deceiver; therefore, a female impostor, as this species “deceived” taxonomists by assuming the identity of Geoplana multicolor . The word impositor was also used in classical times by polymath Marcus Terentius Varro in his work ‘De Lingua Latina’ to refer to someone that applies a name to a thing ( Lewis and Short 1891); thus, impositrix could also be interpreted as the species that applied a name, in this case Paraba , to a group of land planarian species. The word is used as a noun in apposition.