Morphological and molecular characterisation of Aporcelinus zapotitlanensis sp. n. (Dorylaimida: Aporcelaimidae) from central Mexico

A new species of Aporcelinus, collected in a natural habitat of central Mexico, is described and illustrated, including molecular (D2-D3 28S-rRNA) data. Aporcelinus zapotitianensis sp. n. is characterised by its 1.19-1.43 mm long body, lip region offset by a deep constriction and 16.5-18.5 mu m broad, odontostyle 195-22 long, neck 325-368 mu m long, pharyngeal expansion 150-201 mu m long or 46-55% of the total neck length, uterus 130-167 mu m long and tripartite, V = 54-56, tail conical with finely rounded tip (30-37 mu m, c = 34-43, c' = 1.2-1.4) lacking a distinct dorsal concavity, spicules 48-51 mu m long, and 11-12 spaced ventromedian supplements with one or two of them located within the range of the spicules. Molecular analyses confirm the monophyly of Aporcelinus and places the new species within a Glade shared with A. infiutdibulicaudatus and A. amazonicus.