Phylogenetic placement of the monotypic genus Holopodostreptus Carl, 1913 and notes on the systematics of Pseudonannolenidae (Spirostreptida : Cambalidea)

Author(s)

Moretti Iniesta, Luiz Felipe ^{[1, 2]} ; Enghoff, Henrik ^[3] ; Brescovit, Antonio D. ^[1] ; Bouzan, Rodrigo S. ^{[1, 2]}

Affiliation

^[1] Inst Butantan, Lab Especial Colecoes Zool, Ave Vital Brasil 1500, BR-05503090 Sao Paulo - Brazil

^[2] Univ Sao Paulo, Inst Biociencias, Posgrad Zool, Sao Paulo - Brazil

^[3] Univ Copenhagen, Nat Hist Museum Denmark, Univ Pk 15, DK-2100 Copenhagen O - Denmark

• Document type: Journal article
• Source: INVERTEBRATE SYSTEMATICS; v. 34, n. 6, p. 661-677, 2020.
• Web of Science Citations: 0

Abstract

The genus Holopodostreptus Carl, 1913 is a poorly known monotypic genus endemic to Ecuador. It differs from most other Pseudonannolenidae by a set of characteristics of the gnathochilarium and gonopods. Herein, we provide descriptive notes of males of H. braueri Carl, 1913 based on recently collected material. Females of the species are described for the first time, and images of the vulvae are provided. In addition, we attempt for the first time to place Holopodostreptus in a phylogenetic context. With a total of 14 taxa and 41 morphological characters, and under implied weighting (k = 6), a single most-parsimonious tree is recovered (total fit = 35.86). The genus is recovered as sister-group of Physiostreptus Silvestri, 1903. The clade Holopodostreptus + Physiostreptus is supported by one synapomorphy (absence of setae on the prefemoral process of leg- pair 1 in males) and one homoplastic transformation (narrow telopodite). Based on the phylogenetic results, notes on the subfamilies Pseudonannoleninae, Cambalomminae and Physiostreptinae and a key for all pseudonannolenid genera are provided. (AU)

• FAPESP's process: 16/24248-0 - Review and cladistic analysis of the genus Pseudonannolene Silvestri, 1895 (Diplopoda: Spirostreptida: Pseudonannolenidae)
• Grantee: Luiz Felipe Moretti Iniesta
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 18/00103-8 - Review and cladistic analysis of Arthrosolaenomeridini Hoffman, 1976 (Diplopoda: Polydesmida: Chelodesmidae)
• Grantee: Rodrigo Salvador Bouzan
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 18/25864-1 - Comparative morphology of the gnathochilarium of types deposited in the Natural History Museum of Denmark (ZMUC) with an emphasis on the Pseudonannolenidae Silvestri, 1895 (Diplopoda, Spirostreptida, Cambalidea)
• Grantee: Luiz Felipe Moretti Iniesta
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate