taxonID	type	description	language	source
03C5592CFF947D4CFE4FF2E9D3F4FA00.taxon	description	Description Body length 740 – 1916 mm. Cuticle smooth. Head tapering. Buccal cavity deep, conical or cylindrico-conical, with sclerotized walls. Tooth lacking. Ten cephalic setae; numerous cervical setae. Double-walled ovoid or circular amphids. Spicules slender. Gubernaculum absent. No precloacal supplement. Single anterior ovary. Three caudal glands, and the proximal two large and obvious. Three terminal setae. Diagnosis and discussion	en	Huang, Y., Zhang, Z. N. (2006): A new genus and three new species of free-living marine nematodes from the Yellow Sea, China. Journal of Natural History 40 (1 - 2): 5-16, DOI: 10.1080/00222930600617781, URL: http://dx.doi.org/10.1080/00222930600617781
03C5592CFF947D4AFE4FF634D1FFFA3E.taxon	materials_examined	Type material Two males and three females collected from Stations 11594, 11794, 12494, and 14394 (Figure 1). Holotype: „ 1 (ZB 030190) slide number ZB 030112213, Station 11594. Paratypes: „ 2 (ZB 030191) ZB 030113122, Station 11794 and three females (ZB 030192, ZB 030193, and ZB 030194) ZB 0301122234, ZB 030115213, and ZB 030120321, Station 11594, 12494, and 14394. Type locality Benthic in the Yellow Sea. Station 11594: 34 ° 29.749 N, 122 ° 30.219 E, 63 m, MdØ 6.01, organic matter 2.02 %; Station 11794: 34 ° 29.869 N, 123 ° 29.109 E, 78 m, MdØ 8.91, organic matter 4.15 %; Station 12494: 33 ° 59.769 N, 122 ° 59.859 E, 68 m, MdØ 7.54, organic matter 2.78 %; Station 14394: 33 ° 00.379 N, 124 ° 29.229 E, 64 m, MdØ 3.64, organic matter 1.1 %. Etymology This species is named after the beautiful slender body. Description Body length 1286 – 1916 mm; maximum body diameter 29 – 38 mm. Cuticle smooth. Head tapering. Buccal cavity conical, strongly elongated, and cuticularized. Ten cephalic setae in one circle, 4 – 5 mm long each. Two circles of ten cervical setae each, first group at the level of the amphids, 7 mm long; the second circle about 14 mm behind amphids, 10 mm long. Amphids ovoid, 8 – 12 mm long, about 14 mm from the head end. Oesophagus 154 – 220 mm. Tail 250 – 308 mm long, conico-cylindrical. Conical part about two-thirds of tail length; anal diameter 27 – 32 mm. Three caudal glands, and the proximal two large and obvious. Three terminal caudal setae, about 20 mm long. Male. Spicule 24 – 26 mm long, with a small hook at distal end. Gubernaculum and precloacal supplement lacking. Female. A single anterior ovary, about 430 mm long; vulva at about 49 – 55 % of body length. Diagnosis and discussion Paramphimonhystrella elegans sp. nov. is characterized by ovoid amphids, the spicules with a small hook at distal end. It is close to Paramphimonhystrella minor sp. nov. But the principal differences between the two species are the body size, the shape of the amphids, the structure of the head, buccal cavity and spicules. In this species, the body length is more than 1200 mm; the amphids are ovoid. In P. minor sp. nov. the body is shorter than 800 mm; amphids are circular; spicules with sharp tip. It is similar to Paramphimonhystrella sinica sp. nov. in body size, but amphids are circular, and spicules have a blunt tip in the latter.	en	Huang, Y., Zhang, Z. N. (2006): A new genus and three new species of free-living marine nematodes from the Yellow Sea, China. Journal of Natural History 40 (1 - 2): 5-16, DOI: 10.1080/00222930600617781, URL: http://dx.doi.org/10.1080/00222930600617781
03C5592CFF927D47FE0AF673D1EEFC44.taxon	materials_examined	Type material Three males and three females collected from Stations 12494 and 11594 (Figure 1). Holotype: „ 1 (ZB 030195) slide number ZB 030115414, Station 12494. Paratypes: two males (ZB 030196 – 97) ZB 0301122142, Station 11594 and two females (ZB 030198 – 99) ZB 0301122142 and ZB 030115414, Station 11594 and 12494. Type locality Benthic in the Yellow Sea. Station 12494: 33 ° 59.769 N, 122 ° 59.859 E, 68 m, MdØ 7.54, organic matter 2.78 %; Station 11594: 34 ° 29.749 N, 122 ° 30.219 E, 63 m, MdØ 6.01, organic matter 2.02 %. Etymology This species is named for the small body. Description Body length 740 – 792 mm; maximum body diameter 13 – 16 mm. Cuticular striation not observed. Head attenuated. Buccal cavity deep, conical, and strongly cuticularized. Ten cephalic setae, about 2 mm long. Two groups of eight cervical setae each, first group at the level of the amphids, 3 – 4 mm long; the second group of setae 7 – 8 mm long. Amphids circular, diameter about 5 mm and 0.5 – 0.58 corresponding body diameter wide; about 12 mm from the head end. Tail 110 – 160 mm long, conico-cylindrical. Conical part about half of tail length; anal diameter 10 – 13 mm. Two large obvious caudal glands. Three terminal caudal setae, 2 – 3 mm long. Male. Spicules 12 – 13 mm long, slender with sharp tip. Gubernaculum and precloacal supplement absent. Female. A single anterior ovary; vulva at about 61 – 63 % of body length. Diagnosis and discussion Paramphimonhystrella minor sp. nov. is characterized by its small body (shorter than 800 mm), circular amphids. It is close to Paramphimonhystrella elegans sp. nov. in the structure of the buccal cavity, but differs in body size and in the shape of the amphids. It is similar to Paramphimonhystrella sinica sp. nov. in the shape of the amphids, but the principal differences between the two species are the buccal cavity and the head structure. In species of Paramphimonhystrella sinica sp. nov. the head is extended and buccal cavity is wider.	en	Huang, Y., Zhang, Z. N. (2006): A new genus and three new species of free-living marine nematodes from the Yellow Sea, China. Journal of Natural History 40 (1 - 2): 5-16, DOI: 10.1080/00222930600617781, URL: http://dx.doi.org/10.1080/00222930600617781
03C5592CFF9F7D45FE5CF41FD59CFA35.taxon	materials_examined	Type material Two males and two females collected from Stations 152194 and 12494 (Figure 1). Holotype: „ 1 (ZB 0301100) slide number ZB 030123413, Station 152194. Paratypes: one male (ZB 0301101) ZB 030115122, Station 12494 and two females (ZB 0301102 – 03) ZB 030115213, ZB 030123413, Stations 12494 and 152194. Paratype female 1: 1114 mm; a 535.9, b 55.8, c 54.0, V 548 % 11 30 31 22 Type locality Benthic in the Yellow Sea. Station 152194: 32 ° 30.449 N, 125 ° 28.219 E, 73 m, MdØ 2.32, organic matter 1.05 %; Station 12494: 33 ° 59.769 N, 122 ° 59.859 E, 68 m, MdØ 7.54, organic matter 2.78 %. Etymology This species is named for the type locality, the Yellow Sea of China. Description Body length 1012 – 1142 mm; maximum body diameter 29 – 32 mm. Cuticle smooth. Head extended. Buccal cavity widely cylindrico-conical. Ten cephalic setae, 5 – 8 mm long. Two groups of ten cervical setae each, first group at the level of the amphids, about 8 mm long; the second circle about 16 mm behind amphids, 19 mm long. Amphids circular, diameter 8 – 12 mm, about 17 mm from the head end. Tail 220 – 282 mm long, conico-cylindrical. Conical part about third of tail length; anal diameter 22 – 27 mm. Three terminal caudal setae, about 16 mm long. Male. Spicules 26 – 34 mm long, slender with blunt tip. Gubernaculum and precloacal supplement lacking. Female. A single anterior ovary; vulva at about 48 – 53 % of body length. Diagnosis and discussion Paramphimonhystrella sinica sp. nov. is characterized by the circular amphids, extended head, broad buccal cavity, and cylindrical part of tail longer than conical part. It differs from Paramphimonhystrella elegans sp. nov. and Paramphimonhystrella minor sp. nov. by the structure of the head, the buccal cavity, the shape of amphids, and the proportion of cylindrical part of tail and conical part. In P. elegans sp. nov., the amphids are ovoid and the spicule has a hook at distal end, the cylindrical part of the tail is shorter than the conical part while in P. minor sp. nov. the body size is small, generally shorter than 800 mm, amphids are circular, but the head is not extended and the spicule has a sharp tip, not a hook at distal end, and cylindrical part of tail is about the same length as the conical part.	en	Huang, Y., Zhang, Z. N. (2006): A new genus and three new species of free-living marine nematodes from the Yellow Sea, China. Journal of Natural History 40 (1 - 2): 5-16, DOI: 10.1080/00222930600617781, URL: http://dx.doi.org/10.1080/00222930600617781
