Figure 2; Dorsal and ventral views of a representative, alcohol-preserved specimen of H. medicinalis collected in eastern Germany. The species-specific pigment patterns are visible.
Description: Deutsch: Blutegel (schematisch): (a) Kopf des Blutegels mit aufgeschnittener Mundhöhle, K die drei Kiefer; (b) eine Kieferplatte mit ihren Zähnen am Rand. Date: 10 September 2004 (original upload date). Source: Meyers Konversationslexikon von 1888. Author: The original uploader was Asb at German Wikipedia. Permission(Reusing this file): Public Domain.
Figure 1; Photograph of living adult specimens of the European medicinal leech (H. medicinalis Linnaeus 1758) and the Mediterranean medicinal leech (H. verbana Carena 1820). The leeches, maintained in pond water, are depicted in dorsal view, with their disk-shaped posterior sucker attached to a petri dish.
Figure 4; Details of the midbody, in dorsal view (A), the head (B) and the anterior sucker (ventral view) (C) of an adult, alcohol-preserved H. medicinalis. As = auterior sucker.
Figure 3; Lateral view of an adult, alcohol-preserved H. 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 5; Adult and junvenile alcohol-preserved H. 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).
Summary[edit] Description: English: Illustration from Conrad Quensel's Svensk Zoologi. Första bandet. Published in Stockholm 1806.Latina: Hirudo medicinalis Svenska: Blodigeln. Fig. 1. en Blod-Igel i nat. storlek, något utdragen och sedd på öfra sidan. — 2. den undra ell. buksidan. — 3. kroppen längs efter uppskuren. — a. de begge fållarne i munnen. — b. strupen. — c. tandraderne. — d. d. d. den inre lösa huden. — e. Pouparts ryggmerg. — f. f. eggstockarne. — g. ändetarmen. — h. i. k. delar hörande till fortplantnings-organerne. — 4. tänderne i deras naturliga läge , förstorade och skilde från den öfra afskurna delen af hufvudändan. — a. strupens öppning. — b. b. b. de tre tandraderne. — 5. munnen som den synes, då den är fastsugen mot platta glaset. — 6. hela bågen med sina uddar som utgöra hvarje tandrad; mycket förstorad. — 7. en Häst-Igel efter naturen. Date: 1806. Source: File:Svensk Zoologi.djvu. Author: Johan Wilhelm Palmstruch (1770–1811) . . Alternative names: Johan Vilhelm Palmstruch; Palmstr. Description: Swedish botanist, lichenologist, military personnel and artist. Date of birth/death: 3 March 1770 30 August 1811 . Location of birth/death: StockholmVänersborg. Authority control: : Q921951VIAF: 61534509ISNI: 0000 0000 6641 8443ULAN: 500097457Botanist: Palmstr.Open Library: OL7191620AGND: 128439289SELIBR: 277847SUDOC: 16732845XBNF: 104096987KulturNav: c60ea40f-fe27-4539-b3e8-55054fea3c7eKoninklijke: 241819512. creator QS:P170,Q921951.
Figure 6; Intact (A) and fragmented (B) posterior sucker of an adult alcohol-preserved H. 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.
The British miscellanyLondon :Printed by R. Taylor & Co., and sold by the author, J. Sowerby by White, Johnson, Symonds, and all other booksellers,1806. biodiversitylibrary.org/page/28913991