Tylolaimophorus digitatus Husain & Khan, 1967
publication ID |
https://doi.org/ 10.11646/zootaxa.4755.2.7 |
publication LSID |
urn:lsid:zoobank.org:pub:321C36EA-3A65-4C43-80AE-5D2C536D2DF9 |
DOI |
https://doi.org/10.5281/zenodo.3812503 |
persistent identifier |
https://treatment.plazi.org/id/03AB87FD-5863-F333-FF31-910DFAD4FA56 |
treatment provided by |
Carolina |
scientific name |
Tylolaimophorus digitatus Husain & Khan, 1967 |
status |
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Tylolaimophorus digitatus Husain & Khan, 1967
After Husain & Khan (1967)
MEASUREMENTS
Holotype female: L = 0.44 mm; a = 18; b = 4.6; spear = 17 µm; c = 15; V = 57.
3 paratype females: L = 0.36-0.44 mm; a = 16-18; b = 4.1-4.6; body width = (23) µm; spear = 16-17 µm; pharynx = (105) µm; tail = (28) µm; c = 14-20; c’ = (1.8); V = 53-65.
1 paratype male: L = 0.35 mm; a = 22; b = 5.1; body width = (16) µm; spear = 13 µm; pharynx = (70) µm; tail = (17) µm; c = 17.5; c’ = (1.3); spicules = 23 µm; gubernaculum = 8 µm.
DESCRIPTION
Female. Body cylindrical, ventrally arcuate when relaxed by gentle heat, tapering at both extremities. Cuticle loosely fitted to the body except at head, vulva and anus. Lip region rounded, offset from the body by a deep constriction. Labial papillae not prominently elevated. Spear typical of the genus, guided by well-developed protruding muscles. The anterior portion of pharynx a slender tube crossed by nerve ring below its middle. Basal pharyngeal bulb pyriform. Cardia hemispheroid. Intestine packed with dense granules. Rectum short, three fourths of the anal-body width long. Vulva transverse. Vagina at right angles to the body axis, extending into the body less than one-third of the vulval body width and surrounded by a globular area formed by the muscles around it. Female gonads paired, opposed and reflexed. Oocytes arranged in a single row. Tail convex-conoid, digitate, nearly twice the anal-body width in length. Two pairs of caudal pores present.
Male. Similar to female in general shape and appearance with a slenderer body, longer pharynx and smaller spear. Testis single, outstretched. Spicules paired, ventrally arcuate, cephalated, with a rounded tip. Gubernaculum simple. Tail shape as in female.
DIAGNOSIS AND RELATIONSHIPS
Tylolaimophorus digitatus was differentiated from all known species at the time of description by smaller body size and the shape of the spicules. It has been further distinguished from T. indicus in having an offset lip region, smaller average body size (0.36-0.44 vs 0.41-0.50 mm), spear length (16-17 vs 18-21 µm) and the shape of the spicules.
DISTRIBUTION
Described from the rhizosphere of Prunus persica (L.) Batsch. in Rampur, India ( Husain & Khan 1967).
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.
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