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27 results for “Hirudo”
FIG. 3 in Re-assessment of the medicinal leech Hirudo medicinalis Linnaeus, 1758, in Ireland
FIG. 3. — Searching for the medicinal leech at Blarney Lough, the last known home for this species in Ireland. The traditional technique by which this bloodsucking species attaches to a wader's legs is much recommended over the more frequently used shoreline netting. The concentric motion waves direct this swimming species to its potential host. An additional technique for finding the medicinal leech is to look for them amongst spawning frogs in the spring (Maitland 2011: 3).
FIG. 1 in Re-assessment of the medicinal leech Hirudo medicinalis Linnaeus, 1758, in Ireland
FIG. 1. — As early as 1827 the French hirudinologist Alfred Moquin-Tandon illustrated several nominal species of medicinal leech from western Europe (Moquin-Tandon 1827: 114-118). A, Hirudo medicinalis Linnaeus, 1758, from northern Europe; B, Hirudo troctina Johnson, 1816, from pharmacies in Montpellier.These species distinctions have been corroborated recently, both genetically and geographically (Utevsky et al. 2010; Trontelj & Utevsky 2012). Which species is indigenous to Ireland is discussed in the text. Scale bar: 1.0 cm.
FIG. 2 in Re-assessment of the medicinal leech Hirudo medicinalis Linnaeus, 1758, in Ireland
FIG. 2. — Distribution of historic records of the medicinal leech in Ireland in relation to the nearest extant population in Wales: 1, Blarney Lough, County Cork; 2, Mallow, County Cork; 3, County Kilkenny; 4, County Dublin; 5, Lough Mask, Counties Galway and Mayo; 6, Marloes Mere, Pembrokeshire, Wales.
Supplementary data for Kvist et. al. 2020 "Draft genome of the European medicinal leech Hirudo medicinalis (Annelida: Clitellata: Hirudiniformes) with emphasis on anticoagulants"
<p>anticoagulant_prots.tar.gz: Proteins sequence, alignment, exon structure, and tree files for identified anticoagulant proteins plus putative anticoagulant proteins from the Hirudo medicinalis ROM11733 v1 assembly</p> <p>Himedicinalis_ROM11733_annotation.tar.gz: InterProScan, UniProtKB, MAKER, RepeatModeller, Rfam, and tRNAscan-SE annotation files for the Hirudo medicinalis ROM11733 v1 assembly</p> <p>PhymmBL_tax_assign.tar.gz: PhymmBL files of the tree rounds of taxnonomic assignment</p>
Figure 1 in Reproductive biology and ecological strategies of three species of medicinal leeches (genus Hirudo)
Figure 1. The hatchling weight distribution of three Hirudo species. (A) Hirudo verbana; (B) Hirudo orientalis; (C) Hirudo medicinalis.
Figure 2 in Reproductive biology and ecological strategies of three species of medicinal leeches (genus Hirudo)
Figure 2. Growth curves of three Hirudo species demonstrating that H. medicinalis and H. orientalis had similar patterns of growth, whereas H. verbana initially lagged behind the other two species but its growth rate subsequently increased and caught up.
Figure 3 in Reproductive biology and ecological strategies of three species of medicinal leeches (genus Hirudo)
Figure 3. Survival rates of Hirudo species demonstrating similar survival patterns in H. orientalis and H. medicinalis and a higher mortality in H. verbana.
FIG. 3 in Notes on distinguishing the cocoons and the juveniles of Hirudo medicinalis and Haemopis sanguisuga (Hirudinea)
FIG. 3. Ventral view of the two forms of Haemopis sanguisuga: the more normal light form above, and the less common dark form below. Scales in millimetres.
FIG. 2 in Notes on distinguishing the cocoons and the juveniles of Hirudo medicinalis and Haemopis sanguisuga (Hirudinea)
FIG. 2. Top: typical new cocoons of Haemopis sanguisuga (above) and Hirudo medicinalis (below). Bottom: older, stained, cocoons of Hirudo medicinalis (left) and Haemopis sanguisuga (right). Note the diOEerence in the texture of the cocoon wall between the two species. Scales in millimetres.
FIG. 1 in Notes on distinguishing the cocoons and the juveniles of Hirudo medicinalis and Haemopis sanguisuga (Hirudinea)
FIG. 1. Length frequency distribution of cocoon (A) lengths and (B) widths of Hirudo medicinalis and Haemopis sanguisuga from sites in Scotland.
FIG. 2 in Toward a taxonomic revision of the medicinal leech Hirudo medicinalis Linnaeus, 1758 (Hirudinea: Hirudinidae): re-description of Hirudo troctina Johnson, 1816 from North Africa
FIG. 2. Comparison of male and female reproductive systems of Hirudo troctina from North Africa (left) [Dissection 27Z] and Hirudo medicinalis from western Turkey (right) [Dissection 28Z]. Dorsal view. Inset (left): left lateral view of vagina [Dissection 27Z]. Inset (right): left lateral view of vagina of Dissection 29Z (a more typical vaginal morphology for this species than Dissection 27Z). co, common oviduct; e, epididymis; eb, ejaculatory bulb; ed, ejaculatory duct; o, oviduct; os, ovisac; ps, penis sheath; pt, prostate; ts, testisac; v, vagina; vc, vaginal caecum; vd, vas deferens. Roman numerals indicate the location of respective somatic ganglia to assist in establishing the location of the reproductive organs. Scale bar: 1 mm.
FIG. 1 in Toward a taxonomic revision of the medicinal leech Hirudo medicinalis Linnaeus, 1758 (Hirudinea: Hirudinidae): re-description of Hirudo troctina Johnson, 1816 from North Africa
FIG. 1. Comparison of the foreguts of Hirudo troctina (left) [Dissection 30Z, neotype] and Hirudo medicinalis (right) [Dissection 35Z]. Ventral view. j, jaw; p, salivary papillae; s, sulcus; t, teeth. Scale bar: 1 mm.
Figure 3 in Estimating population density of the medicinal leech Hirudo orientalis Utevsky and Trontelj, 2005 (Clitellata: Hirudinida) using Visible Implant Elastomer tags
Figure 3. The medicinal leech after the injection. The tag in the dorsal surface of leech is shining under the ultraviolet light.
Figure 1 in Estimating population density of the medicinal leech Hirudo orientalis Utevsky and Trontelj, 2005 (Clitellata: Hirudinida) using Visible Implant Elastomer tags
Figure 1. Artificial medicinal leech ponds of the University of Tehran.
Figure 8 from: Kutschera U, Elliott J (2014) The European medicinal leech Hirudo medicinalis L.: Morphology and occurrence of an endangered species. Zoosystematics and Evolution 90(2): 271-280. https://doi.org/10.3897/zse.90.8715
Figure 8 - Geographical distribution of Hirudo medicinalis and Hirudo verbana, based on data published in 2012 (A). In the species Hirudo verbana, a western (w) and an eastern (e) phylogroup has been identified. Occurrence of medicinal leeches in the nest of aquatic birds (B). The photograph shows adult, living specimens of Hirudo medicinalis (with cocoon, see Inset) collected from a nest of a water bird (western marsh harrier, Circus aeruginosus) in Poland (adapted from Kovalenko and Utevsky 2012 [A] and Buczyńsky et al. 2014 [B], respectively).
Figure 6 from: Kutschera U, Elliott J (2014) The European medicinal leech Hirudo medicinalis L.: Morphology and occurrence of an endangered species. Zoosystematics and Evolution 90(2): 271-280. https://doi.org/10.3897/zse.90.8715
Figure 6 - Intact (A) and fragmented (B) posterior sucker of an adult alcohol-preserved Hirudo medicinalis. The disk-shaped sucker is largely composed of muscle tissue containing numerous mitochondria. DNA-extractions for mt-sequence analysis (fragments of the gene CO-I) were performed from this part of the body that is not contaminated with the gut content of the blood-sucking annelid.
Figure 5 from: Kutschera U, Elliott J (2014) The European medicinal leech Hirudo medicinalis L.: Morphology and occurrence of an endangered species. Zoosystematics and Evolution 90(2): 271-280. https://doi.org/10.3897/zse.90.8715
Figure 5 - Adult and junvenile alcohol-preserved Hirudo medicinalis, and a cocoon in dorsal view (A). The Inset shows the characteristic pigment pattern of a newly hatched individual in dorsal and ventral view, respectively (B).
Figure 3 from: Kutschera U, Elliott J (2014) The European medicinal leech Hirudo medicinalis L.: Morphology and occurrence of an endangered species. Zoosystematics and Evolution 90(2): 271-280. https://doi.org/10.3897/zse.90.8715
Figure 3 - Details of the midbody, in dorsal view (A), the head (B) and the anterior sucker (ventral view) (C) of an adult, alcohol-preserved Hirudo medicinalis. As = auterior sucker.
Figure 4 from: Kutschera U, Elliott J (2014) The European medicinal leech Hirudo medicinalis L.: Morphology and occurrence of an endangered species. Zoosystematics and Evolution 90(2): 271-280. https://doi.org/10.3897/zse.90.8715
Figure 4 - Lateral view of an adult, alcohol-preserved Hirudo medicinalis (A) and position of the male (♂) and female (♀) gonopores on the ventral side (B), with the tube-like male copulatory organ outside of the body.
Figure 2 from: Kutschera U, Elliott J (2014) The European medicinal leech Hirudo medicinalis L.: Morphology and occurrence of an endangered species. Zoosystematics and Evolution 90(2): 271-280. https://doi.org/10.3897/zse.90.8715
Figure 2 - Dorsal and ventral views of a representative, alcohol-preserved specimen of Hirudo medicinalis collected in eastern Germany. The species-specific pigment patterns are visible.
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