Revision and phylogeny of Tarvaia Allgén, 1934 (Nematoda: Tarvaiidae)

Abstract

Descriptions of eight new and three known species of Tarvaia are given. Tarvaia pacifica sp. n. has cephalic capsule reaching posterior part of short amphids, amphidial shield without ornamentation, straight vagina with pars refringens vaginae, slightly asymmetrical spicules, gubemaculum with two dorsal apophyses, precloacal ridge present; T. algicola sp. n. has cephalic capsule with unevenly thickened walls reaching posterior part of short amphids, amphidial shield without ornamentation, straight vagina, apophyses absent, precloacal ridge present; T. carolinensis sp. n. has cephahc capsule reaching posterior part of short amphids, amphidial shield with ornamentation, sigmoid vagina, gubemaculum with a dorsal apophysis; T. longispiculata sp. n. has elongated cephalic capsule reaching posterior part of elongate amphids, amphidial shield without omamentation, sigmoid vagina, unusually long spicules, gubemaculum with dorsal apophysis, precloacal ridge present; T. inaequalis sp. n. has short cephalic capsule reaching anterior third of elongate amphids, amphidial shield with ornamentation, straight vagina, strongly anisometric spicules, gubemaculum with caudal apophysis, precloacal ridge present; T. sakhalinensis sp. n. has short cephalic capsule reaching middle of short amphids, amphidial shield with distinct pores, symmetrical spicules, apophyses absent; T. tchesunovi sp. n. has cephalic capsule with unevenly thickened walls reaching posterior part of short amphids, amphidial shield without omamentation, symmetrical spicules, apophyses absent; and T. ricordensis sp. n. has cephalic capsule reaching posterior part of short amphids, amphidial shield without ornamentation, straight vagina, symmetrical spicules, gubemaculum with dorsal apophyses. Updated descriptions of T. donsi, T. cladara and T. gerlachi are provided. Phylogenetic analysis based on 18S rDNA suggests a close relationship between Tarvaia and Desmoscolecida.

Description of a new marine predatory nematode Latronema dyngi sp. nov. (Nematoda, Chromadorida, Selachinematidae) from the west coast of Sweden and an updated phylogeny of Chromadoria

“…Also consistent with the previous analysis was the placement of the plectid family Haliplectidae Chitwood, 1951 among the earliest branching families of Chromadoria such as Monoposthiidae Filipjev, 1934and Microlaimidae Micoletzky, 1922(Holovachov et al 2012, explaining why this family is considered incertae sedis (Holovachov 2014).…”

Nematodes from terrestrial and freshwater habitats in the Arctic

“…General classification and classification of the orders Chromadorida, Desmodorida and Araeolaimida follows De Ley and Blaxter (2004) and Holovachov and Esquivel (2012) . Classification of the order Enoplida follows that of Smol et al (2014) and Andrássy (2002) ; Triplonchida – Holovachov and Shoshin (2014) ; Dorylaimida – Andrássy (2009) ; Mononchida – Ahmad and Jairajpuri (2010) ; Monhysterida – Fonseca and Decraemer (2008) ; Plectida – Holovachov (2014) ; Rhabditida – Holovachov et al (2009) , Geraert (2008) , Geraert (2011) , Sudhaus (2011) , Sudhaus and Fürst von Lieven (2003) .…”

Rediscovery and redescription of the sharpshooter Kogigonalia incarnata (Germar, 1821), comb. n. (Hemiptera, Cicadellidae, Cicadellini) from the Atlantic Forest of Brazil, with a key to the species of the genus

“…3a–b, dorsal view of the body) of a male and a female syntype (see Wilson et al 2009). Two additional syntypes are deposited in the Germar collection in the Ivan Franko National University, Lviv (Shydlovskyy and Holovachov 2005: 41, Holovachov 2008). …”

“…We have been able to identify male and female specimens of Tettigonia incarnata from northeastern and southeastern Brazil using high-resolution images of two syntypes (see Wilson et al 2009) deposited in the Museum für Naturkunde, Universität Humboldt, Berlin. Two additional syntypes reside in the Germar collection in the Ivan Franko National University, Lviv (Shydlovskyy and Holovachov 2005, Holovachov 2008) but were not available for study. The original description of Germar (1821) and the reasonably detailed redescription and color figure of the body provided by Signoret (1853) were also very useful, allowing a precise identification of our specimens.…”