Leptolaimus donsi Holovachov & Boström 2013, comb. n.

• Main Authors: Holovachov, Oleksandr, Boström, Sven
• Format: Other/Unknown Material
• Language: unknown
• Published: 2013
• Subjects: Biodiversity; Taxonomy; Animalia; Nematoda; Adenophorea; Araeolaimida; Leptolaimidae; Leptolaimus; Leptolaimus donsi; Norway; Bonden; North Atlantic
• Online Access: https://zenodo.org/record/5271824; https://doi.org/10.5281/zenodo.5271824

Leptolaimus donsi (Allgén, 1947) comb. n. (Figs 8, 9, 10 A–C; Table 6) Type material. Lectotype female (slide # Type-3620) from the collection of C. Allgén. Additional material. 11 males and 21 females (slides # 129938–129949) deposited in the general invertebrate collection of the Department of Zoology, Swedish Museum of Natural History, Stockholm, Sweden. Type locality. North Atlantic Ocean, Trondheimsfjord, off Storfosen island, Norway (N 63° 39.5', E 9° 24’) (Allgén, 1947) Additional localities. Sandy sediment from 5–17 m deep, Gullmarn Fjord near Fiskebäckskil, Sweden (N 58° 15' 09'', E 11° 27' 51''), 21 August 2010, legit M. Clément (one male); mud from 30–39 m deep, Gullmarn Fjord near Fiskebäckskil, Sweden (N 58° 15' 13'', E 11° 27' 31''), 21 August 2010, legit M. Clément (one male and one female); sand and shells from 15–22 m deep, Bonden island in Skagerrak off the west coast of Sweden (N 58 12' 37'', E 11 18' 53''), 09 August 2011, legit O. Holovachov (one male and four females); gravel, mud and algae from 30–70 m deep, Skagerrak off the west coast of Sweden (N 58° 22' 14'', E 11° 05' 00''), 09 August 2011, legit O. Holovachov (five males and eight females); muddy sand from 25–50 m deep, Skagerrak off the west coast of Sweden (N 58° 22' 20'', E 11° 09' 26''), 09 August 2011, legit O. Holovachov (one female); coarse sediment with algae from 45–55 m deep, Skagerrak off the west coast of Sweden (N 58° 17' 32'', E 11° 11' 24''), 09 August 2011, legit O. Holovachov (three males and seven females). Description. Adult. Body tapering anteriorly in pharyngeal region and posteriorly on tail; straight or ventrally curved upon fixation, more strongly curved ventrad in posterior part in males. Maximum body diameter at vulva in female; male body more cylindrical. Cuticle annulated; annuli 1.5–2.4 µm wide at mid-body, without ornamentation. Lateral field present, consists of single ala (two incisures), 1.5–3.5 µm wide at mid-body; originating at level of posterior edge of amphid (at level with first body pore) and ...