A new species of velvet worm of the genus Oroperipatus (Onychophora, Peripatidae) from western Amazonia
2024
Jorge L. Montalvo-Salazar | M. Lorena Bejarano | Alfredo Valarezo | Diego F. Cisneros-Heredia
The diversity of Neotropical velvet worms (Onychophora, Neopatida) is significantly underestimated, particularly within the Andean clade represented by the genus Oroperipatus, the last species of which was described more than 70 years ago. Here, we describe a new species of Oroperipatus from the Amazonian lowlands of Ecuador, bringing the total number of described species on mainland Ecuador to seven and in western Amazonia to three. The new species, Oroperipatus tiputini sp. nov., can be distinguished from its congenerics by the following combination of characters: two variations of primary papillae alternated between dorsal plicae; four scale ranks in the apical piece of primary papillae; reduced fifth spinous pad of legs IV and V; four supraocular papillae; occasionally reduced anterior papilla; males with two crural tubercles per leg in the first pregenital pair and a single crural tubercle per leg in the next pair; and some accessory papillae with one lateral rudimentary apical piece. We also discuss novel morphological similarities and differences with other Neopatida genera, as revealed by scanning electron microscopy (SEM).
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