Tubulanidae Bürger, 1904

Sagorny, Christina, Döhren, Jörn von, Rouse, Greg W. & Tilic, Ekin, 2022, Cutting the ribbon: bathyal Nemertea from seeps along the Costa Rica margin, with descriptions of 2 new genera and 9 new species, European Journal of Taxonomy 845 (1), pp. 132-174 : 142

Family Tubulanidae Bürger, 1904

Tubulanidae is the only palaeonemertean family that was represented in the Costa Rican samples. In total, six tubulanid specimens were collected at depths around 1000 m from two nearby localities (Mound 11 & Mound 12). A DNA analysis of four specimens collected over different years showed that all specimens belong to the same species that is firmly nested within Tubulanidae ( Fig. 2 ).

Figures

Fig. 2. Maximum likelihood (ML) tree for the palaeonemertean supermatrix based on the concatenated four gene dataset (16S, COI, 18S, H3). Numbers beside nodes indicate support values. Black circles indicate nodal support of 100/100/1.0; asterisks indicate nodal support of either 100/ or /1.0. Alternative branches found in the BI analysis are given as blue dotted lines. Sonnenemertes cantelli Chernyshev, Abukawa & Kajihara, 2015 and Micrura callima Sundberg & Gibson, 1995 were used for outgroup rooting. Specimens belonging to the new species Tubulanus cf. lutescens are highlighted in bold. When available a specimen-ID, sampling locality, and depth (for deep-sea species) are provided. A statistical parsimony haplotype network based on the COI gene fragment reveals close relationship between Tubulanus cf. lutescens and Tubulanus lutescens.