Source Themes

How to deal with cryptic species in Enchytraeidae, with recommendations on taxonomical descriptions

During the 12th International Symposium on Enchytraeidae, held in Tihany, Hungary (27–29 June 2016), the participants discussed cryptic species, i.e., species that are morphologically so similar that they are classified as the same species (Bickford …

Multi-locus phylogenetic analysis of the genus Limnodrilus (Annelida: Clitellata: Naididae)

Limnodrilus species are annelid worms distributed worldwide in various freshwater sediments. The systematics of Limnodrilus has chiefly been based on morphology, but the genus has not been subject to any closer phylogenetic studies over the past two …

Placing the forgotten: On the positions of Euenchytraeus and Chamaedrilus in an updated enchytraeid phylogeny (Clitellata: Enchytraeidae)

The phylogeny of Enchytraeidae was re-estimated to establish the relationships of the now resurrected Chamaedrilus and Euenchytraeus and to confirm their status as separate taxa. The former Cognettia (Enchytraeidae) was recently revised and split …

Extensive cryptic diversity in the cosmopolitan sludge worm Limnodrilus hoffmeisteri (Clitellata, Naididae)

Limnodrilus hoffmeisteri Claparède, 1862 is a common freshwater worm, often regarded as an indicator of organic pollution. The taxonomic status of this species is controversial due to great variation in morphological features. Numerous morphological …

Barcoding gap, but no support for cryptic speciation in the earthworm Aporrectodea longa (Clitellata: Lumbricidae)

DNA-barcoding, using the mitochondrial marker COI, has been found successful for the identification of specimens in many animal groups, but may not be suited for species discovery and delimitation if used alone. In this study, we investigate whether …

Cryptic speciation and limited hybridization within Lumbricus earthworms (Clitellata: Lumbricidae)

Cryptic mitochondrial (mt) lineages are known to exist in the earthworm morphospecies Lumbricus rubellus and L. terrestris. The latter was recently split into two species, L. terrestris and L. herculeus, based on large genetic distances and a …

Ny snigelkott på Västkusten

I Sverige finns ett 90-tal arter av nakensnäckor, som hör till gruppen Opisthobranchia – bakgälade snäckor. En ny genetisk studie visar att den vanliga arten snigelkott faktiskt består av två arter.

Phylogeny and species delimitation of North European Lumbricillus (Clitellata, Enchytraeidae)

The enchytraeid genus Lumbricillus comprises about 80 described species of clitellate worms, which are up to a few centimetres long, and they mostly inhabit the littoral zone of nontropical marine and brackish waters world-wide. The phylogeny of this …

Morphological and genetic characterization of the first species of Thalassodrilides (Annelida: Clitellata: Naididae: Limnodriloidinae) from Japan

A species of marine limnodriloidine oligochaete, Thalassodrilides cf. briani Erséus, 1992, is recorded from gravelly sand sediments of the subtidal zone in Ehime Prefecture, Japan. The present material agrees with the original description of T. …

Annotating public fungal ITS sequences from the built environment according to the MIxS-Built Environment standard – a report from a May 23-24, 2016 workshop (Gothenburg, Sweden)

Recent molecular studies have identified substantial fungal diversity in indoor environments. Fungi and fungal particles have been linked to a range of potentially unwanted effects in the built environment, including asthma, decay of building …