Microlaimus korari Leduc 2016, n. sp.
Microlaimus korari n. sp. (Figs. 1 & 2; Table 1) Diagnosis. Microlaimus korari n. sp. is characterised by having annulated cuticle with faint longitudinal bars, round amphideal aperture slightly smaller than the cryptospiral amphideal fovea, spacious and heavily cuticularised buccal cavity with...
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| Format: | Other/Unknown Material |
| Language: | unknown |
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2016
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| Online Access: | https://zenodo.org/record/6091268 https://doi.org/10.5281/zenodo.6091268 |
| Summary: | Microlaimus korari n. sp. (Figs. 1 & 2; Table 1) Diagnosis. Microlaimus korari n. sp. is characterised by having annulated cuticle with faint longitudinal bars, round amphideal aperture slightly smaller than the cryptospiral amphideal fovea, spacious and heavily cuticularised buccal cavity with large dorsal tooth and smaller right subventral tooth situated anteriorly relative to left subventral tooth, pharynx with large oval posterior bulb, excretory pore situated anterior to nerve ring, slender spicules 4.4 cloacal body diameters long, gubernaculum 1.2 cloacal body diameters long with laterally curved distal end and swollen proximal end, precloacal supplements absent, vulva situated slightly posterior to mid-body, and vagina directed posteriorly. Etymology. The species name is a noun in apposition derived from the Māori term kōrari (= flower stems of New Zealand flax Phormium tenax, which are long and stiff) and refers to the long, slender shape of the spicules. Material examined. Holotype male (NIWA 99774), collected 28 May 2007 (NIWA cruise TAN0707, station 23), central Challenger Plateau, Southwest Pacific (168.9450º E, 38.6200º S); water depth: 482 m, sediment depth: 0–5 cm, silt/clay content: 35.5%, CaCO3 content: 89.5%. One paratype female (NIWA 99775), same data as holotype. One paratype female (NIWA 99776), collected 6 March 2008 (NIWA cruise TAN0802, station 233), abyssal plain near Scott Seamount, Ross Sea (178.8285º W, 67.6198º S); water depth: 3543 m. Description. Male Body colourless, cylindrical, tapering towards anterior body extremity. Cuticle annulated from immediately posterior to cephalic setae to near tail tip; very faint longitudinal bars visible at level of pharyngeal bulb and posteriorly. Two subventral rows of short, stout somatic setae observed in pre-cloacal region, one subdorsal pair also present at level of spicules; somatic setae apparently absent elsewhere. Porids and epidermal glands not observed. Head rounded, slightly set off by constriction immediately posterior to cephalic ... |
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