identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
0A3B87B8C808F72D66BCF41FF6E57288.text	0A3B87B8C808F72D66BCF41FF6E57288.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Haemadipsa nigrilineata Yang & Yao & Wang & Nie & Xu 2026	<div><p>Haemadipsa nigrilineata sp. nov.</p><p>Diagnosis: Small-sized, cylindrical in cross-section; dorsum bearing a thin discontinuous black stripe along midline extending from the anterior end to caudal sucker; ventral surface brownish-yellow with irregularly scattered gray speckles on both dorsum and venter; large metameric sensilla symmetrically distributed along dorsal midline.</p><p>Description: Based on three specimens. Blood-feeding terrestrial leech. Length 14± 2.5 mm; maximum body width 4± 0.5 mm; head width 1.5± 0.5 mm; caudal sucker diameter 3± 0.5 mm. Caudal sucker diameter slightly narrower than maximal body width (Fig. 1). Dorsum marked by a thin discontinuous black mid-dorsal stripe spanning its entire length. Both dorsum and venter exhibit irregularly scattered grayish-black speckles. Ventral surface uniformly brownish-yellow (Fig. 1B). Body composed of 27 somites and 97 annuli in total; complete somites five-annulate: somites I-IV uniannulate; somite V biannulate; somites VI-VII triannulate; somite VIII quadrannulate; somites IX-XXIII five-annulate (b1+b2+a2+b5+b6); somite XXIV triannulate; somites XXV-XXVII uniannulate (Fig. 1A).</p><p>Male gonopore situated at furrow XI b5/b6 (annuli 30/31); female gonopore at furrow XII b5/b6 (annuli 35/36) (Fig. 1B), separated by five annuli.Anus positioned dorsally on the terminal somite. Segmental sensilla creamy white, prominent, and outward-projecting. Dorsally arranged in a dorsoventral row of six on the middle annulus of each complete somite, including on annuli VI b3 and VIII b2, whereas their ventral counterparts are indistinct. Papillae symmetrically distributed along the dorsal midline; the first pair positioned adjacent to black stripes between two discontinuous dark bands. All annuli densely covered with distinct small papillae. Five pairs of eyespots dorsally positioned on annuli 2, 3, 4, 5, and 8 (Fig. 1D).</p><p>Oral sucker subcircular. Three jaws (trignathous), one ventral and two dorsolateral. The ventral jaw is larger than the dorsolateral jaws that are slender and prominent. Jaws with tiny and indistinct teeth on the outer periphery. Crop with 11 pairs of lateral caeca. One pair of caeca in each somite from somite IX to somite XIX, which are closely adhered to the muscular tissues. The anterior 10 pairs of crop ceca are small and digitiform, while the eleventh and final pair, the post-caeca, is long, thick, and extends posteriorly.</p><p>Male reproductive system: Ten pairs of testisacs situated in somites XIII/XIV-XXII/XXIII. Vas deferens moderately thick and sinuous; the epididymis is slightly enlarged and forms a convoluted mass of folded loops. These loops are arranged symmetrically on either side of the dorsal midline; distally, the epididymis connects to a moderately swollen ejaculatory bulb, which then transitions into a smooth, fusiform penis sac. Ejaculatory bulbs arcuate, closely appressed to penis sac. Prostate gland milky-white in color, extensively surrounding the dorsal aspect of penis sac (Fig. 2).</p><p>Female reproductive system: Pair of ovoid ovisacs positioned postero-inferior to epididymis; Oviducts slender and straight, converging into common duct connected to vaginal sac located posterior epididymis. Vaginal sac approximately 1.5 times as long as wide. Vaginal duct extends anteriorly from ventral surface of vaginal sac, terminating at small female genital pore (Fig. 2).</p><p>Holotype: Adult specimen, Bomi County, Tibet, China, 6 July 2023, coll. Luyu Wang, coordinates 30°5′49′′N, 95°4′7′′E, altitude 2023 m, Shaanxi <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=95.06861&amp;materialsCitation.latitude=30.096945" title="Search Plazi for locations around (long 95.06861/lat 30.096945)">Normal University</a>, Xi’an, China (Catalogue number: XZBM1).</p><p>Paratypes: Three adult specimens, same data as holotype, Shaanxi Normal University, Xi’an, China (Catalogue number: XZBM2-4) .</p><p>Etymology: The specific epithet of the new species is composed of a black Latin “nigra” and a lined Latin “linea”, indicating that the species has a black stripe on the back of the body (AEŘƜǟ).</p><p>Remarks: We concluded that the new species belongs to the genus Haemadipsa, because the specimens bear the following morphological features, which have been considered the diagnostic characters of the genus: terrestrial and blood sucking lifestyle. Complete somite with 5 annuli. Ten pairs of eyespots large and distinct, each pair located on the 2nd, 3rd, 4th, 5th, and 8th annuli respectively, forming an arc. Genital pores separated by five annuli, located in XI b5/b6 and XII b5/b6 respectively. Thirteen species of this genus have been described from China (Huang et al. 2019), however, H. nigrilineata sp. nov. can be distinguished from those species by the following combination of characteristics (see Huang et al. 2019; Lai et al. 2011; Oka, 1910; Song, 1977; Tan, 2000; Whitman, 1886; Yang, 1996): H. nigrilineata sp. nov. dorsum bears only one thick, straight central stripe and lacks black spots; H. zeylanica zeylanica has a reddish-brown or orange body with black spots and a yellow or yellow-green mid-dorsal stripe; H. zeylanica agilis has a variable body color but constant brown spot pattern, with a black or brown stripe in the darker mid-dorsal area; H. sylvestri has three black or dark brown dorsal stripes, with the median stripe narrow and sometimes broken or absent; H. japonica has three dark brown dorsal stripes, the median one complete and running the entire length; H. qomolangma has three dark brown stripes on the mid-dorsum and upper lateral margins, with the median stripe thick and prominent; H. yanyuanensis has two dark brown stripes at the margin of the mid-dorsal yellowish-brown band connected by 17 pairs of arc-shaped lines, plus a thin central stripe; H. hainana has a broad pale yellow mid-dorsal band with laterally protruding margins and three thin brown stripes on the center and sides; H. guangchuanensis has a broad milky-white mid-dorsal band with five stripes and outward-projecting patches on each segment, the median stripe narrow; H. guangchuanensis chuandianensis has five thick, straight black stripes on both sides of the relatively wide light-colored mid-dorsal band, with dark brown dorsolateral margins; H. rjukjuana has a variable dorsal ground color with many irregularly continuous black spots and irregular black patches on the venter; H. picta has a mostly reddish-brown dorsal ground color, a mid-dorsal bluish-gray, yellow-green, or bright colored band with 3–5 discontinuous black stripes, and pale yellow dorsolateral margins with black spots; H. tianmushana has six thick, straight black stripes on both sides of the relatively wide light-colored mid-dorsal band, with no central stripe; H. yanbianensis has six stripes on the milky-white mid-dorsal band, including a thick straight pair on the inner dorsum and a thin pair on the outer dorsum; H. medogensis sp. nov. has no distinct vertical dorsal stripes, and the vaginal sac is roughly square, whereas H. japonica has a gourd-shaped vaginal sac, 1.5–2 times longer than wide; H. qomolangma has a short, thick, peanut-shaped vaginal sac; H. hainana has an elongated intestinal-shaped vaginal sac H. zeylanica zeylanica has a short, narrow, and small vaginal sac; H. sylvestri has a sausage-shaped vaginal sac, 3–4 times longer than wide; H. yanbianensis has a small oblong vaginal sac; H. guangchuanensis has a “7”-shaped curved vaginal sac; H. medogensis sp. nov. has a rectangular vaginal sac with a slightly pointed lower end, 1.5 times longer than wide.</p><p>This new species is similar to H. qomolangma Song and Jiang; however, H. qomolangma possesses a broad creamy-white longitudinal stripe along the dorsal midline flanked by paired black lateral stripes, which are absent in the present species(Yang 1996). Additionally, the new species differs diagnostically by having a larger and quadrate vagina sac compared to the smaller oval-shaped vagina sac in H. qomolangma (Song 1977) .</p><p>Distribution: Bomi County, Tibet, China.</p></div>	https://treatment.plazi.org/id/0A3B87B8C808F72D66BCF41FF6E57288	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Yang, Lulu;Yao, Binbin;Wang, Jing;Nie, Linlin;Xu, Sheng-Quan	Yang, Lulu, Yao, Binbin, Wang, Jing, Nie, Linlin, Xu, Sheng-Quan (2026): Two new leech species of the genus Haemadipsa Tennent, 1859 from Tibet, China and characterization of their mitochondrial genomes (Clitellata: Hirudiniformes: Haemadipsidae). Zootaxa 5748 (4): 524-538, DOI: 10.11646/zootaxa.5748.4.4, URL: https://doi.org/10.11646/zootaxa.5748.4.4
0A3B87B8C80CF72166BCF3CFF6F47445.text	0A3B87B8C80CF72166BCF3CFF6F47445.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Haemadipsa medogensis Yang & Yao & Wang & Nie & Xu 2026	<div><p>Haemadipsa medogensis sp. nov.</p><p>Diagnosis: Small-sized, slightly cylindrical; anterior third slender, posterior third broadest; Dorsum yellowish with irregular black speckling and no regular vertical stripes; Ventral surface yellowish, coloration matching dorsum, lacking black spots.</p><p>Description: Based on nine specimens- Blood-feeding terrestrial leech. Slender anteriorly, of intermediate width medially, and broadest posteriorly. Length 24± 4.5 mm; maximum body width 6± 0.5 mm; anterior sucker width 2.5± 0.5 mm; caudal sucker diameter 5± 0.5 mm. Caudal sucker diameter slightly narrower than maximal body width (Fig. 3). Dorsum without distinct longitudinal stripes or patterns, showing irregular yellowish areas interspersed with black speckles that occasionally coalesce into short irregular streaks (Fig. 3A). Ventral surface brownish-yellow, entirely devoid of speckles (Fig. 3B).</p><p>Five pairs of eyespots dorsally positioned on annuli 2, 3, 4, 5, and 8 (Fig. 2D). Male gonopore at furrow XI b5/b6 (annuli 30/31); female gonopore at furrow XII b5/b6 (annuli 35/36), separated by five annuli. Anus dorsally located on terminal somite. Segmental sensilla prominent: appearing dorsally on annulus 11, with six dorsoventrally arranged sensilla slightly protruding beyond mid-annulus width on VI b3, VIII b2, and mid-annuli of complete somites; dorsal large papillae symmetrically aligned along mid-dorsal black stripe. All annuli densely covered with distinct small papillae (Fig. 3).</p><p>Oral sucker subcircular. Three jaws, one ventral and two dorsolateral. Ventral jaw is larger than dorsolateral jaws and is slender and prominent. There are tiny and indistinct teeth on the outer periphery of the jaws. The crop has 11 pairs of lateral ceca. There is one pair of ceca in each segment from somite IX to somite XIX, which are closely adhered to the muscular tissues. The anterior 10 pairs of crop ceca are small and digitiform, while the eleventh and final pair, the post-caeca, is long, thick, and extends posteriorly.</p><p>Male reproductive system: Ten pairs of testisacs located in somites XIII/XIV-XXII/XXIII. Vas deferens slender and convoluted, terminating in rounded dilation; Epididymis large with folded loops arranged dorsoventrally, connecting distally to a swollen ejaculatory bulb that continues to smooth fusiform penis sac. Ejaculatory bulbs pear-shaped, prostate gland encircling periphery of penis sac (Fig. 4).</p><p>Female reproductive system: Pair of ovisacs positioned inferior to epididymis; Oviducts slender and straight, converging into common duct connected to vaginal sac located below epididymis. Vaginal sac twice to three times as long as wide, bearing two transverse folds. Vaginal duct extends anteriorly from ventral aspect of vaginal sac, terminating at small female genital pore (Fig. 4).</p><p>Holotype: Adult specimen, Medog County, Tibet China, 6 July 2023, coll. Luyu Wang, coordinates 29°19′36′′N, 95°19′16′′E, altitude 1008 m, Shaanxi <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=95.32111&amp;materialsCitation.latitude=29.326668" title="Search Plazi for locations around (long 95.32111/lat 29.326668)">Normal University</a>, Xi’an, China (Catalogue number: XZMT1)</p><p>Paratypes: 8 adult specimens, same data as holotype. Shaanxi Normal University, Xi’an, China (Catalogue number: XZMT2-9) .</p><p>Etymology: This new species is named after its type locality “Medog” (墨ÊƜǟ).</p><p>Remarks: We concluded that the new species belongs to the genus Haemadipsa, because it bears the following morphological features, which have been considered the diagnostic characters of the genus (Huang et al. 2019; Yang 1996): terrestrial and blood-sucking lifestyle, complete somite five annulated. Eyespots large and distinct, located on annuli 2, 3, 4, 5, and 8 respectively. Genital pores separated by five annuli, located in XI b5/b6 and XII b5/b6). Thirteen species of this genus have been described in China, however, H. medogensis sp. nov. can be distinguished from those species by the following combination of characteristics (Huang et al. 2019; Lai et al. 2011; Oka 1910; Song 1977; Tan 2000; Whitman 1886; Yang 1996): The dorsum lacks distinct stripes, with only numerous irregularly and slightly continuous black spots, contrary to H. zeylanica zeylanica that has a reddish-brown or orange body with black spots and a yellow or yellow-green mid-dorsal stripe; H. zeylanica agilis has variable body color but a constant brown spot pattern, with a black or brown stripe in the darker mid-dorsal area; H. sylvestri has three black or dark brown dorsal stripes, the median one narrow and sometimes broken or absent; H. japonica has three dark brown dorsal stripes, the median one complete and running the entire length; H. qomolangma has three dark brown stripes on the mid-dorsum and upper lateral margins, with the median stripe thick and prominent; H. yanyuanensis has two dark brown stripes at the margin of the mid-dorsal yellowish-brown band connected by 17 pairs of arc-shaped lines, plus a thin central stripe; H. hainana has a broad pale yellow mid-dorsal band with laterally protruding margins and three thin brown stripes on the center and sides; H. guangchuanensis has a broad milky-white mid-dorsal band with five stripes and outward-projecting patches on each segment, the median stripe narrow; H. guangchuanensis chuandianensis has five thick, straight black stripes on both sides of the relatively wide light-colored mid-dorsal band, with dark brown dorsolateral margins; H. rjukjuana has a variable dorsal ground color with many irregularly continuous black spots and irregular black patches on the venter; H. picta has a mostly reddish-brown dorsal ground color, a mid-dorsal bluish-gray, yellow-green, or bright colored band with 3–5 discontinuous black stripes, and pale yellow dorsolateral margins with black spots; H. tianmushana has six thick, straight black stripes on both sides of the relatively wide light-colored mid-dorsal band, with no central stripe; H. yanbianensis has six stripes on the milky-white mid-dorsal band, including a thick straight pair on the inner dorsum and a thin pair on the outer dorsum; H. nigrilineata sp. nov. has only one thick, straight central stripe on the dorsum without black spots). Additionally, the vaginal sac is rectangular with a slightly pointed lower end, where the length is 1.5 times the width in the new species, contrary to H. japonica has a gourd-shaped vaginal sac, 1.5–2 times longer than wide; H. qomolangma has a short, thick, peanut-shaped vaginal sac; H. hainana has an elongated intestinal-shaped vaginal sac; some species have a short vaginal sac spanning two somites with a swollen middle; H. zeylanica zeylanica has a short, narrow, and small vaginal sac; H. sylvestri has a sausage-shaped vaginal sac, 3–4 times longer than wide; H. yanbianensis has a small oblong vaginal sac; H. guangchuanensis has a “7”-shaped curved vaginal sac; H. nigrilineata sp. nov. is roughly square vaginal sac).</p><p>Haemadipsa medogensis sp. nov. differs from other species within the same genus in that it has irregular black patches on its back rather than regular linear patterns, and there are no obvious spots on its abdomen. Additionally, the vagina sac of this new species is enormous, and the epididymis presents a dagger-like shape (Yang, 1996).</p><p>Distribution: Medog County, Tibet, China.</p></div>	https://treatment.plazi.org/id/0A3B87B8C80CF72166BCF3CFF6F47445	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Yang, Lulu;Yao, Binbin;Wang, Jing;Nie, Linlin;Xu, Sheng-Quan	Yang, Lulu, Yao, Binbin, Wang, Jing, Nie, Linlin, Xu, Sheng-Quan (2026): Two new leech species of the genus Haemadipsa Tennent, 1859 from Tibet, China and characterization of their mitochondrial genomes (Clitellata: Hirudiniformes: Haemadipsidae). Zootaxa 5748 (4): 524-538, DOI: 10.11646/zootaxa.5748.4.4, URL: https://doi.org/10.11646/zootaxa.5748.4.4
0A3B87B8C803F72266BCF6A0F06075A0.text	0A3B87B8C803F72266BCF6A0F06075A0.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Haemadipsa nigrilineata Yang & Yao & Wang & Nie & Xu 2026	<div><p>Haemadipsa nigrilineata sp. nov. (Table. 2)</p><p>Mitochondrial genome: The complete mitochondrial genome is located on the positive strand with a total size of 14,755 bp. The overall AT content is 77.2%, and the AT skew is -0.101, indicating a slightly higher T content than A. The genome exhibits a strong AT-rich bias, consistent with regional nucleotide composition patterns.</p><p>PCGs: The PCGs span 10,950 bp, with the following base composition: T (U) = 43.9%, C = 11.6%, A = 32.6%, G = 11.9%. The AT and GC contents are 76.5% and 23.5%, respectively, while the GT content is 55.8%. The AT skew (-0.147) reflects a higher T content relative to A, whereas the GC skew (0.014) suggests a slight dominance of C over G. Individual PCGs, such as atp6 (696 bp, AT = 78.1%) and atp8 (148 bp, AT = 81.1%), display distinct nucleotide compositions and skew values, reflecting evolutionary and functional divergence.</p><p>rRNAs: The rrnL and rrnS genes collectively span 1,840 bp, with an AT content of 76.2%. A positive AT skew (0.046) indicates a marginally higher A content than T, maintaining the overall AT-rich trend.</p><p>tRNAs: The tRNA region (1,384 bp) has an AT content of 79.7%, with near-balanced A/T ratios (AT skew = 0.003). The GC skew (0.16) highlights a higher C content compared to G.</p><p>Codon positions: Each codon position spans 3,650 bp. The first codon position shows an AT content of 71.6% with a positive AT skew (0.011). The second position has an AT content of 69.9% and a pronounced T bias (AT skew = -0.408). The third position exhibits extreme AT preference (88.1% AT content).</p></div>	https://treatment.plazi.org/id/0A3B87B8C803F72266BCF6A0F06075A0	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Yang, Lulu;Yao, Binbin;Wang, Jing;Nie, Linlin;Xu, Sheng-Quan	Yang, Lulu, Yao, Binbin, Wang, Jing, Nie, Linlin, Xu, Sheng-Quan (2026): Two new leech species of the genus Haemadipsa Tennent, 1859 from Tibet, China and characterization of their mitochondrial genomes (Clitellata: Hirudiniformes: Haemadipsidae). Zootaxa 5748 (4): 524-538, DOI: 10.11646/zootaxa.5748.4.4, URL: https://doi.org/10.11646/zootaxa.5748.4.4
0A3B87B8C800F72266BCF660F5E2727F.text	0A3B87B8C800F72266BCF660F5E2727F.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Haemadipsa medogensis Yang & Yao & Wang & Nie & Xu 2026	<div><p>Haemadipsa medogensis sp. nov. (Table. 3)</p><p>Mitochondrial genome: The complete mitochondrial genome is 14,892 bp in length, with an AT content of 77.6% (AT skew = -0.101) and GC content of 22.4% (GC skew = 0.066).</p><p>PCGs: The PCGs span 10,956 bp, composed of T (U) = 44.2%, C = 11.2%, A = 32.6%, and G = 12.1%. AT and GC contents are 76.8% and 23.3%, respectively, with a GT content of 56.3%. The AT skew (-0.152) and GC skew (0.037) further confirm T and C dominance over A and G, respectively. Variations are observed among genes, such as atp8 (151 bp, AT = 80.1%) and cox1 (1,501 bp, AT = 71.4%).</p><p>rRNAs: The combined rrnL and rrnS genes span 1,870 bp, with an AT content of 78.3% and a positive AT skew (0.027). The GC skew (0.179) indicates higher C abundance.</p><p>tRNAs: The tRNA region (1,395 bp) has an AT content of 79.3% and GC content of 20.6%.</p><p>Codon positions: Each codon position spans 3,652 bp. The first position has an AT content of 71.6%, the second position shows 69.6% AT with a strong T bias (AT skew = -0.402), and the third position exhibits extreme AT enrichment (89.0%).</p></div>	https://treatment.plazi.org/id/0A3B87B8C800F72266BCF660F5E2727F	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Yang, Lulu;Yao, Binbin;Wang, Jing;Nie, Linlin;Xu, Sheng-Quan	Yang, Lulu, Yao, Binbin, Wang, Jing, Nie, Linlin, Xu, Sheng-Quan (2026): Two new leech species of the genus Haemadipsa Tennent, 1859 from Tibet, China and characterization of their mitochondrial genomes (Clitellata: Hirudiniformes: Haemadipsidae). Zootaxa 5748 (4): 524-538, DOI: 10.11646/zootaxa.5748.4.4, URL: https://doi.org/10.11646/zootaxa.5748.4.4
