taxonID	type	description	language	source
03BA8795FF90EA40FE4B3C39FC40FB80.taxon	description	(Figures 1 – 2 and Table 1)	en	Lu, Yang, Sui, Xinxin, Huang, Yong (2022): Three new species of free-living marine nematodes from the central basin of the South China Sea. Journal of Natural History 56 (17 - 20): 1091-1107, DOI: 10.1080/00222933.2022.2102446, URL: http://dx.doi.org/10.1080/00222933.2022.2102446
03BA8795FF90EA40FE4B3C39FC40FB80.taxon	materials_examined	Type material Two males and three females were collected from Stations S 5 (20.650 ° N, 118.308 ° E, water depth 2368 m) and S 1 (21.549 ° N, 118.898 ° E, water depth 2694 m). Holotype: male 1 on slide NHS 5 - 34 - 3, paratypes: male 2 on slide NHS 5 - 39 - 5, female 1 on slide NHS 5 - 41 - 4, female 2 on slide NHS 5 - 34 - 1 and female 3 on slide NHS 1 - 321 - 7. Type locality and habitat The holotype was found in muddy sediment at Station S 5 in the South China Sea (20.650 ° N, 118.308 ° E, water depth 2368 m).	en	Lu, Yang, Sui, Xinxin, Huang, Yong (2022): Three new species of free-living marine nematodes from the central basin of the South China Sea. Journal of Natural History 56 (17 - 20): 1091-1107, DOI: 10.1080/00222933.2022.2102446, URL: http://dx.doi.org/10.1080/00222933.2022.2102446
03BA8795FF90EA40FE4B3C39FC40FB80.taxon	etymology	Etymology The species name is derived from the Latin adjective longus (long) and caudatus (tail), referring to its long tail.	en	Lu, Yang, Sui, Xinxin, Huang, Yong (2022): Three new species of free-living marine nematodes from the central basin of the South China Sea. Journal of Natural History 56 (17 - 20): 1091-1107, DOI: 10.1080/00222933.2022.2102446, URL: http://dx.doi.org/10.1080/00222933.2022.2102446
03BA8795FF90EA40FE4B3C39FC40FB80.taxon	description	Measurements All measurement data are given in Table 1. Description	en	Lu, Yang, Sui, Xinxin, Huang, Yong (2022): Three new species of free-living marine nematodes from the central basin of the South China Sea. Journal of Natural History 56 (17 - 20): 1091-1107, DOI: 10.1080/00222933.2022.2102446, URL: http://dx.doi.org/10.1080/00222933.2022.2102446
03BA8795FF90EA40FE4B3C39FC40FB80.taxon	materials_examined	Holotype male. Body slender. Round labial region set off from adjacent body by constriction. Cuticle with fine striations. Somatic setae not observed. Inner labial sensilla papilliform. Six outer labial setae and four cephalic setae arranged in one circle, and almost equal in length, about 3 μm long. Four cervical setae 7 – 8 μm long, located posterior to the base of the buccal cavity. Amphidial fovea oval, relatively large, 9 μm in diameter (53 % of corresponding body diameter), located at the level of base of buccal cavity, 12 μm from its front edge to the anterior end. Buccal cavity cylindrical, cuticularised, 15 µm deep and 5 µm wide. Pharynx cylindrical, slightly swollen at base, not forming posterior terminal bulb. Cardia nearly spherical, projecting into the intestine. Nerve ring situated just anterior to the middle of pharynx. Secretory – excretory system not observed. Tail conical with a long filiform posterior portion, 7.5 times abd, with two terminal setae, 6 – 8 µm long. Caudal setae not seen. Three contiguous caudal glands with common opening. Reproductive system with single anterior outstretched testis. Spicules paired, elongate, slender and equal in length, 71 µm long, i. e. 3.7 abd, or 9 % of body length, curved as the body bends, proximal end truncated, distal end tapered. Gubernaculum rather simple, with only one section of dorsal apophysis, about 10 µm long. Females. Similar to males in most morphological characteristics except amphidial fovea smaller and circular (6 – 7 µm in diameter). Reproductive system monodelphic with a single anterior outstretched ovary, located to the left of the intestine. Vagina straight, 0.4 times vulval body diameter long. Vaginal glands present. Vulva situated at about mid-body.	en	Lu, Yang, Sui, Xinxin, Huang, Yong (2022): Three new species of free-living marine nematodes from the central basin of the South China Sea. Journal of Natural History 56 (17 - 20): 1091-1107, DOI: 10.1080/00222933.2022.2102446, URL: http://dx.doi.org/10.1080/00222933.2022.2102446
03BA8795FF95EA4CFE1F3D9FF9B5FBFB.taxon	description	(Figures 3 – 4 and Table 2)	en	Lu, Yang, Sui, Xinxin, Huang, Yong (2022): Three new species of free-living marine nematodes from the central basin of the South China Sea. Journal of Natural History 56 (17 - 20): 1091-1107, DOI: 10.1080/00222933.2022.2102446, URL: http://dx.doi.org/10.1080/00222933.2022.2102446
03BA8795FF95EA4CFE1F3D9FF9B5FBFB.taxon	materials_examined	Type material One male was obtained and measured. The holotype male is on slide NHS 58 - 207 - 8. Type locality and habitat Undersea muddy clay sediment at Station S 58 in the South China Sea (15.712 ° N, 110.750 ° E, water depth 733 m).	en	Lu, Yang, Sui, Xinxin, Huang, Yong (2022): Three new species of free-living marine nematodes from the central basin of the South China Sea. Journal of Natural History 56 (17 - 20): 1091-1107, DOI: 10.1080/00222933.2022.2102446, URL: http://dx.doi.org/10.1080/00222933.2022.2102446
03BA8795FF95EA4CFE1F3D9FF9B5FBFB.taxon	etymology	Etymology The species name is derived from the Latin adjective distalis (away from) and amphid, referring to the amphid being located far from the anterior end.	en	Lu, Yang, Sui, Xinxin, Huang, Yong (2022): Three new species of free-living marine nematodes from the central basin of the South China Sea. Journal of Natural History 56 (17 - 20): 1091-1107, DOI: 10.1080/00222933.2022.2102446, URL: http://dx.doi.org/10.1080/00222933.2022.2102446
03BA8795FF95EA4CFE1F3D9FF9B5FBFB.taxon	description	Measurements All measurement data are given in Table 2. Description	en	Lu, Yang, Sui, Xinxin, Huang, Yong (2022): Three new species of free-living marine nematodes from the central basin of the South China Sea. Journal of Natural History 56 (17 - 20): 1091-1107, DOI: 10.1080/00222933.2022.2102446, URL: http://dx.doi.org/10.1080/00222933.2022.2102446
03BA8795FF95EA4CFE1F3D9FF9B5FBFB.taxon	materials_examined	Holotype male. Body slender with filiform tail. Cuticle marked by transverse rows of punctations, with lateral differentiation consisting of six longitudinal rows of larger dots from the level of amphidial fovea to tail conical portion. Lateral differentiation about 6 μm in width. Cuticular pores not observed. Head slightly rounded and set off. Buccal cavity minute, without tooth. Six inner labial sensilla papilliform. A ring of six outer labial sensilla setiform, located just anterior to the ring of four cephalic setae, all of the setae 3.5 µm long. amphidial fovea multispiral with 8.5 turns, appearing oval in outline, 76 % of corresponding body diameter in width. Pharynx cylindrical, not enlarged at its base. Cardia conical. Nerve ring surrounding the pharynx at about 42 % of its length from the anterior end. Excretory pore not observed. Tail about 12 times as long as abd, conical with distal three-quarters filiform portion, without terminal setae. Reproductive system diorchic, testes opposed, outstretched. Spicules symmetrical, slightly arcuate, 1.2 times as long as abd. Gubernaculum rod-like, straight and parallel to the spicule, without apophysis. Seventeen sucker-shaped cuticularised precloacal supplements equally arranged. The most posterior supplement located at 17 µm in front of cloaca and the most anterior one 185 µm from the cloaca. Female not found.	en	Lu, Yang, Sui, Xinxin, Huang, Yong (2022): Three new species of free-living marine nematodes from the central basin of the South China Sea. Journal of Natural History 56 (17 - 20): 1091-1107, DOI: 10.1080/00222933.2022.2102446, URL: http://dx.doi.org/10.1080/00222933.2022.2102446
03BA8795FF9EEA4BFE5A3A48FB57FE98.taxon	description	(Figures 5 – 6 and Table 2)	en	Lu, Yang, Sui, Xinxin, Huang, Yong (2022): Three new species of free-living marine nematodes from the central basin of the South China Sea. Journal of Natural History 56 (17 - 20): 1091-1107, DOI: 10.1080/00222933.2022.2102446, URL: http://dx.doi.org/10.1080/00222933.2022.2102446
03BA8795FF9EEA4BFE5A3A48FB57FE98.taxon	materials_examined	Type material One male and one female were found and measured. Holotype male on slide NHS 74 - 279 - 1, paratype female on slide NHS 79 - 289 - 7. Type locality and habitat Holotype was found in muddy clay sediment at Station S 74 in the South China Sea (10.013 ° N, 115.147 ° E, water depth 1951 m). Paratype female was found in muddy clay sediment at Station S 79 in the South China Sea (10.751 ° N, 114.983 ° E, water depth 2390 m).	en	Lu, Yang, Sui, Xinxin, Huang, Yong (2022): Three new species of free-living marine nematodes from the central basin of the South China Sea. Journal of Natural History 56 (17 - 20): 1091-1107, DOI: 10.1080/00222933.2022.2102446, URL: http://dx.doi.org/10.1080/00222933.2022.2102446
03BA8795FF9EEA4BFE5A3A48FB57FE98.taxon	etymology	Etymology The species name is derived from the Latin adjective minor (minute), referring to its tiny body size relative to other members of the genus.	en	Lu, Yang, Sui, Xinxin, Huang, Yong (2022): Three new species of free-living marine nematodes from the central basin of the South China Sea. Journal of Natural History 56 (17 - 20): 1091-1107, DOI: 10.1080/00222933.2022.2102446, URL: http://dx.doi.org/10.1080/00222933.2022.2102446
03BA8795FF9EEA4BFE5A3A48FB57FE98.taxon	description	Measurements All measurement data are given in Table 2. Description	en	Lu, Yang, Sui, Xinxin, Huang, Yong (2022): Three new species of free-living marine nematodes from the central basin of the South China Sea. Journal of Natural History 56 (17 - 20): 1091-1107, DOI: 10.1080/00222933.2022.2102446, URL: http://dx.doi.org/10.1080/00222933.2022.2102446
03BA8795FF9EEA4BFE5A3A48FB57FE98.taxon	materials_examined	Holotype male. Body elongate spindle, anterior third of pharyngeal region attenuated. Cuticle annulated, annules smooth. Inner and outer labial sensilla papilliform, located on the anterior surface of lips. Four cephalic setae each 2 µm long, located posteriorly to the labial region. Amphidial aperture circular, located at more posterior position of 5 times head diameters from the anterior end. Secretory – excretory system absent. Tubular buccal cavity long and narrow, occupying one-third of the total length of the pharynx. Pharynx guitar shaped, with a middle bulb and a basal bulb, with strongly developed cuticular lining. Mid-pharyngeal bulb rugby ball shaped and basal bulb pear shaped. Cardia cylindrical, partly enveloped by the intestinal tissue in its posterior part. Tail elongate conical with tapered terminus, without terminal setae, 4.3 times abd in length. Three caudal glands present. Spinneret functional. Reproductive system diorchic. Spicules symmetrical, slightly arcuate, with cephalated proximal end and tapered distal end, 21 µm long. Gubernaculum rod-like, slightly curved, 8 µm long. A papilliform midventral precloacal supplement located at 9 µm in front of cloaca. Female. Similar to males in most morphological characteristics except amphidial aperture larger and oval in outline. Reproductive system didelphic with two opposed, outstretched ovaries. Spermatheca unseen. Vulva located at mid-body, 52 % of body length from the anterior end. Vulval lips slightly raised. Vagina straight.	en	Lu, Yang, Sui, Xinxin, Huang, Yong (2022): Three new species of free-living marine nematodes from the central basin of the South China Sea. Journal of Natural History 56 (17 - 20): 1091-1107, DOI: 10.1080/00222933.2022.2102446, URL: http://dx.doi.org/10.1080/00222933.2022.2102446
