identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
254ACE10FFC52266FF312C982CFDFF40.text	254ACE10FFC52266FF312C982CFDFF40.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Mesodorylaimus ushkaniensis Naumova & Gagarin 2021	<div><p>Mesodorylaimus ushkaniensis sp. n.</p> <p>(Figs 1, 2; Table 1)</p> <p>Type material. Holotype male, inventory slide number 102/72 (1554-1) deposited in the nematode collection of the Helminthological Museum of the Russian Academy of Sciences (RAS), Institute of Ecology and Evolution, Center for Parasitology RAS (Moscow, Russia)</p> <p>Paratypes. 4 paratype females with the same collection data as holotype; nine paratype males and six paratype females deposited in the collection of the Limnological Institute, Siberian Branch of the Russian Academy of Sciences (Irkutsk, Russia)</p> <p>Measurements. Table 1.</p> <p>Type locality. Lake Baikal, Siberia, Russia, Bolshoy Ushkaniy Island, depth 3.0– 8.3 m, silt and stones. Collected on 27–28 September 2016.</p> <p>Etymology. The specific epithet means “from Ushkaniy Island”, the type locality.</p> <p>Description. Male. Body comparatively large, slender. Cuticle smooth and thin, without longitudinal ridges, 4.0–5.0 µm thick at mid-body. Lateral chord 35–37 µm wide, ca one third of the mid-body diameter; without granular appearance. Somatic pores not observed. Labial region truncate and offset from adjacent body; 5.4–6.4 times narrower than body diameter the base of the pharynx. Labial and cephalic papillae large, district. Amphidial fovea at level of the cephalic constriction and occupying ca 60–65% of the corresponding body diameter. Odontostyle straight, 1.5–1.6 times as long as the labial region wide; aperture occupying ca 23–25% of the total odontostyle length. Odontophore rod-like, 0.5–0.6 times the odontostyle length. Guiding ring single. Pharynx muscular, expanding gradually along its whole length. Pharyngeal gland nuclei indistinct. Cardia conoid, nerve ring situated at 32–35% of the total pharynx length.</p> <p>Genital system diorchic, with opposing testes. One adcloacal supplement and series of 23–27 contiguous ventromedial supplements present. All supplements in the shape of relatively large papillae. Prerectum 200–288 µm long, beginning at level of supplement row. Distance from cloaca to adcloacal supplement 5–6 µm; from adcloacal supplement to the series of ventromedial supplements 92–140 µm. Adcloacal space (i.e., hiatus) present. Series of ventromedial supplements 230–325 µm in extent. Spicules relatively robust, curved ventrally; at 1.5–1.7 times as long as cloacal body diameter. Lateral guiding pieces spindle-shaped. Tail conoid-rounded with round tip. Caudal papillae in three-four pairs.</p> <p>Female. General morphology similar to that of the male, but body larger and thicker. Structure of cuticle and anterior body end as in males. Reproductive system didelphic, amphidelphic. Ovaries comparatively long; oocytes numerous, arranged as a double and then a single row. Oviduct joining the ovary subterminally. Muscular sphincter separating oviduct and uterus not visible. Uterus a wide tube, two or three times as long as the corresponding body diameter; filled to the end with spindle-shaped sperm. Uterus containing one or three eggs measuring 108–125 x 53–62 µm. Vagina extending ca half of the body diameter: pars proximalis vaginae in the shape of thin tube with muscular walls 48–51 µm long; pars refringens vaginae consisting of two round sclerotized pieces; pars distalis vaginae very short. Vulva a transverse slit. Vulva lips not sclerotized, not protruding outside the body contour. Vulvar papillae not observed. Rectum 1.2–1.3 times as long as anal body diameter, prerectum 4.0–5.2 times as long as anal body diameter. Tail long, consisting of anterior conical segment and posterior thin, whip-like segment. Length of posterior segment making up 70–75% of total tail length.</p> <p>Diagnosis. Body long and comparatively thin (L = 2095–2824 µm, a = 19–23 in males, L = 2283–3780, a = 21– 29 in females); cuticle smooth; labial region offset from the adjacent body; odontostyle straight and slender, 34–36 µm long, aperture occupying 23–25% of odntostyle length; odontophore 16–25 µm long; guiding ring single; vulva a transverse slit; uterus spacious, with numerous sperm and 1– 3 eggs, measuring 108–125 x 53–62 µm; female tail consisting of anterior conical segment and posterior thin whip-like segment, length of posterior segment reaching 70–75% of total tail length; spicules 80–85 µm long; adcloacal supplement and row of 23–27 contiguous supplements present, precloacal space present; male prerectum 200–288 µm long, beginning at level of supplement row.</p> <p>Differential diagnosis. Mesodorylaimus ushkaniensis sp. n. is the largest species of the genus Mesodorylaimus (Loof 1969, Ahmad 1993, Andrássy 2009) thus far described. It resembles Mesodorylaimus cryptosperma Loof, 1969, but can be separated from this species by the longer body (L = 2095–3780 µm vs L = 1800–2300 µm in M. cryptosperma), comparatively shorter tail in females (c = 12.1–16.3, cʹ = 3.3–5.3 vs c = 10–12, cʹ = 6.0–7.0 in M. cryptosperma), longer odontostyle (34–35 µm long vs 20–22 µm long in M. cryptosperma), and longer spicules (80–85 µm long vs 52–58 µm long in M. cryptosperma) (Loof 1969).</p> </div>	http://treatment.plazi.org/id/254ACE10FFC52266FF312C982CFDFF40	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	Naumova, Tatyana V.;Gagarin, Vladimir G.	Naumova, Tatyana V., Gagarin, Vladimir G. (2021): Mesodorylaimus ushkaniensis sp. n. and Allodorylaimus baikalensis sp. n (Nematoda, Dorylaimida) from Lake Baikal, Russia. Zootaxa 4985 (2): 285-293, DOI: https://doi.org/10.11646/zootaxa.4985.2.12
254ACE10FFC0226AFF3129C22CA9FF43.text	254ACE10FFC0226AFF3129C22CA9FF43.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Allodorylaimus baikalensis Naumova & Gagarin 2021	<div><p>Allodorylaimus baikalensis sp. n.</p> <p>(Figs 3, 4; Table 2)</p> <p>Type material. Holotype male, inventory slide number 102/73, deposited in the nematode collection of the Helminthological Museum of the Russian Academy of Sciences (RAS), Institute of Ecology and Evolution, Center for Parasitology RAS (Moscow, Russia)</p> <p>Paratypes. Six males and five mature females deposited in the nematode collection of the Limnological Institute, Siberian Branch of the Russian Academy of Sciences (Irkutsk, Russia)</p> <p>Measurements. Table 2.</p> <p>Type locality. Lake Baikal, Siberia, Russia, Bolshoy Ushkaniy Island, depth 3.0– 8.2 m, silt and stones. Collected on 15 June 2014 and 27–28 September 2016.</p> <p>Etymology. The specific epithet means “from Lake Baikal”.</p> <p>Description. Male. Body comparatively large, thin. Cuticle smooth and thin, without longitudinal ridges. Lateral pores not visible. Lips well developed; labial papillae distinct. Labial region offset from the adjacent body. Amphidial fovea cup-like, situated at the base of the lips. Odontostyle straight and slender, 1.1–1.2 times the labial region diameter; its aperture occupying 28–31% of its length. Odontophore rod-like, 0.5–0.6 times as long as odontostyle. Guiding ring single. Pharynx muscular, expanding gradually along its whole length. Cardia conoid, muscular, surrounded with intestinal tissue.</p> <p>Testes paired, opposed. Spicules dorylaimoid, 1.3–1.5 times cloacal body diameter in length, with two spindleshaped lateral guiding pieces. 9–12 spaced, papilloid supplements anterior to cloaca; no precloacal space. Prerectum long, 4.2–5.0 cloacal body diameters long, intestinal-prerectum junction located in the region of the supplement series. Tail hooked, strongly curved ventrally, distal end pointed.</p> <p>Female. General morphology similar to that of males in structure of cuticle and anterior body end. Reproductive system didelphic, amphidelphic. Ovaries comparatively long; oocytes numerous, arranged as a double and then a single row. Vulva a longitudinal slit, situated slightly anterior to mid-body. One to five prominent papillae arranged anterior and posterior to vulva. Vagina with muscular walls, occupying 30–40% of corresponding body width; pars proximalis vaginae in the shape of thin tube; pars refringens vaginae consisting of two round sclerotizations; pars distalis vaginae very short. Uterus spacious, filled with small rounded spermatozoa and containing 1– 2 eggs measuring 62–81x 21–30 µm. Rectum 1.0–1.3 times as long as anal body diameter; prerectum 2.3–3.0 times as long as anal body diameter. Tail hooked, strongly ventrally curved, terminus pointed.</p> <p>Diagnosis. Body comparatively long and thin (L = 1360–1755 µm, a = 27–44); cuticle smooth; labial region offset from the adjacent body; odontostyle straight and slender, 15–18 µm long, 1.1–1.2 times the labial region diameter; aperture occupying 28–31% of its length; odontophore 9–11 µm long; guiding ring single; vulval slit longitudinal; uterus spacious, with numerous sperm and 1– 2 eggs, measuring 62–81x 21–30 µm; spicules 44–50 µm long, dorylaimoid: 9–12 spaced papilloid precloacal supplements; precloacal space absent; prerectum in males long, intestinal-prerectum junction located in the region of supplement row. Male and female tails are similar, hookshaped, strongly curved ventrally, with pointed distal end.</p> <p>Differential diagnosis. At present the genus Allodorylaimus Andrássy, 1986 contain 29 valid species (Vinciguerra 2006, Andrássy 2009, Gagarin &amp; Serikova 2007). Allodorylaimus baikalensis sp. n. is morphologically close to A. tarkoenensis (Andrássy, 1959) Andrássy 1986, but differs in the longer body (♀♀ L = 1460–1750 µm, ♂♂ L = 1360–1755 µm vs ♀♀ L = 1290–1340 µm, ♂ L = 1109 µm in A. tarkoenensis), comparatively longer tail (♀♀ cʹ = 1.9–3.2, ♂♂ cʹ = 1.6–2.6 vs ♀♀ cʹ = 1.5, ♂ cʹ = 1.3), longer spicules (44–50 µm long vs 39.2 µm long in A. tarkoenensis), and comparatively longer prerectum in females (2.3–3.0 times as long as anal body diameter vs 2.0 times as long as anal body diameter in A. tarkoenensis) (Andrássy 1959).</p> </div>	http://treatment.plazi.org/id/254ACE10FFC0226AFF3129C22CA9FF43	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	Naumova, Tatyana V.;Gagarin, Vladimir G.	Naumova, Tatyana V., Gagarin, Vladimir G. (2021): Mesodorylaimus ushkaniensis sp. n. and Allodorylaimus baikalensis sp. n (Nematoda, Dorylaimida) from Lake Baikal, Russia. Zootaxa 4985 (2): 285-293, DOI: https://doi.org/10.11646/zootaxa.4985.2.12
