Obama carbayoi
{{Short description|Species of flatworm}}
{{Speciesbox
| image = Obama carbayoi 341199735.jpg
| image_caption = Obama carbayoi
| genus = Obama
| species = carbayoi
| authority = (Oliveira & Leal-Zanchet, 2012)
| synonyms = Geoplana ladislavii Oliveira & {{nobr|Leal-Zanchet}}, 2012
}}
Obama carbayoi is a species of Brazilian land planarian in the subfamily Geoplaninae.
Description
Obama carbayoi has a broad, flat and foliaceous body. It can reach up to 141 mm in length. The dorsal color is homogeneously black, slightly paler at the anterior end. Under a stereo microscope, the background color is seen as light brown covered by dense black pigmentation. The ventral side is orange with a dark margin. The eyes surround the anterior end in a single row, and after about 2 mm from the tip the rows increase to two or three. At about 1.5 cm from the anterior end, the eyes spread onto the dorsum, forming a band of about 2.5 mm on each side and, after 5.5 cm from the anterior end, they start to become sparser.{{cite journal|last1=Amaral|first1=Silvana V.|last2=Oliveira|first2=Simone M.|last3=Leal-Zanchet|first3=Ana M.|title=Three new species of land flatworms and comments on a complex of species in the genus Geoplana Stimpson (Platyhelminthes: Continenticola)|journal=Zootaxa|volume=3338|year=2012|pages=1–32|doi=10.11646/zootaxa.3338.1.1 }}
The copulatory apparatus includes a permanent penis papilla that occupies most of the male atrium.{{Cite book |title=Integrative approach reveals two new species of Obama (Platyhelminthes: Tricladida) from the South-Brazilian Atlantic Forest |date=2018 |volume=4455 |pages=99–126 |doi=10.11646/zootaxa.4455.1.4 |issn=1175-5334 |issue=1}}
Distribution
Currently, the species is only known from its type locality, the Parque Estadual do Turvo in the municipality of Derrubadas, state of Rio Grande do Sul, Brazil.