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| Rota, Emilia; Martin, Patrick; Erséus, Christer. |
| To re-evaluate the various hypotheses on the systematic position of Parergodrilus heideri Reisinger, 1925 and Hrabeiella periglandulata Pizl & Chalupský, 1984, the sole truly terrestrial non-clitellate annelids known to date, their phylogenetic relationships were investigated using a data set of new 18S rDNA sequences of these and other five relevant annelid taxa, including an unknown species of Ctenodrilidae, as well as homologous sequences already available for 18 polychaetes, one aphanoneuran, 11 clitellates, two pogonophorans, one echiuran, one sipunculan, three molluscs and two arthropods. Two different alignments were constructed, according to an algorithmic method (Clustal W) and on the basis of a secondary structure model (DCSE), A maximum... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Terrestrial Polychaeta; Parergodrilus heideri; Stygocapitella subterranea; Hrabeiella periglandulata; I8S rRNA gene; Molecular phylogeny; Rapid radiation. |
| Ano: 2001 |
URL: http://www.repository.naturalis.nl/record/534378 |
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| Erséus, Christer. |
| Seven species of Tubificidae are recorded from the Canary Islands, viz. Heterodrilus amplus n. sp., Coralliodrilus leviatriatus Erséus, 1979, Limnodriloides agnes Hrabĕ, 1967, L. janstocki n. sp., Aktedrilus cuneus Erséus, 1984, A. parvithecatus (Erséus, 1978), and Tubifex tubifex (Müller, 1774); the two latter taxa are reported also from the Cabo Verde Islands. All taxa except T. tubifex are marine and there is no evidence of endemism in the freshwater oligochaete fauna of these islands. Heterodritus amplus has short, spindle-shaped, heavily muscular atria; they are morphologically unique within the genus. Limnodriloides janstocki has modified spermathecal setae; it is distinguished from similar species by its long atrial ducts and deep, elaborate... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Oligochaeta; Tubificidae; Taxonomy; Canary Islands; Cabo Verde Islands; Biogeography; Groundwater fauna. |
| Ano: 1992 |
URL: http://www.repository.naturalis.nl/record/504640 |
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