Abstract
A new species of temnocephalan is described from the branchial chambers of Valdivia serrata in Colombia as Temnocephala ivandarioisp. nov. The most distinctive characters of the new species are in the cirrus and the epidermal ‘excretory’ syncytial plates. In the present study, the terminology to describe the cirrus of species of Temnocephala is updated. Comparison between the shape of the cirrus of the temnocephalans associated with trichodactylid crabs is also provided.
Highlights
We describe and illustrate a new species of Temnocephala associated with the trichodactylid crab Valdivia serrata from the Colombian Amazonas
Its members are distributed around Australia and the Neotropics (Martínez-Aquino et al 2014); the type genus of Temnocephalidae, Temnocephala Blanchard, 1849, is exclusive to the Neotropics
Autapomorphies of the Temnocephala include red-pigmented eyespots, four epidermal syncytial plates, and excretory pores enclosed within the boundaries of the DLSPs (Damborenea and Cannon 2001)
Summary
Only two species have been described from Colombia, T. colombiensis Garcés, Puerta, Tabares, Lenis & Velásquez, 2013, ectosymbiont of the gastropod Pomacea sp., and T. icononcensis Arias-Pineda, Damborenea & Castro, 2015, hosted by the pseudothelphusid crabs Hypolobocera bouvieri (Rathbun 1898), Phallangothelphusa dispar (Zimmer 1912) and Strengeriana cajaensis Campos & Rodríguez, 1993.
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