Lumbricillus macquariensis Benham 1905

• Main Authors: Klinth, Mårten J., Rota, Emilia, Martinsson, Svante, Prantoni, Alessandro L., Erséus, Christer
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2021
• Subjects: Biodiversity; Taxonomy; Animalia; Annelida; Clitellata; Enchytraeida; Enchytraeidae; Lumbricillus; Lumbricillus macquariensis; Macquarie Island
• Online Access: https://doi.org/10.5281/zenodo.6461123; http://treatment.plazi.org/id/039DC377FFBEFFC44DBFFA05FEA95D56

‘ LUMBRICILLUS’ CF. MACQUARIENSIS BENHAM, 1905 (FIG. 8) ? Lumbricillus macquariensis Benham, 1905: 295–297, pl. XIV, figs 8, 11–13; Benham, 1915: 189–191; Benham, 1922: 6; Stephenson, 1932: 254–255, fig. 7. ? Lumbricillus intermedius Benham, 1909: 261–262, pl. X, figs 8–11. ? Pachydrilus intermedius – Michaelsen, 1924: 197–199. Type material: No information (Reynolds & Wetzel, 2019). The material is probably located in the Otago Museum, New Zealand, because Benham mentions material being deposited and registered in the Museum by a Professor Parker, who was curator of the Otago museum collections at the time. Our inquiry did not receive any response. Type locality: Macquarie Island, brackish pools, with planarians and Siphonaria limpets. Material examined: SMNH198150 (CE12483), one mature specimen, and SMNH198151–198153 (CE12484 –CE12486), three immature or semimature specimens, all collected in 2010 from South Georgia. For details of collection and GenBank accession numbers for COI barcodes and other gene sequences, see Table 1 and the Supporting Information (Table S1). Description: Length of first 15–48 segments 2.5– 7.1 mm (fixed, amputated specimens); first 15 segments 2.5–3.0 mm long; width at clitellum 0.85– 1.10 mm. Chaetae slightly sigmoid (Fig. 8A). Upper bundles dorsolateral (closer to lateral line than the ventral bundles), with four to six chaetae anterior to clitellum, and three to four chaetae in postclitellar segments, at least to segment XLVIII. Ventral bundles with (four) five to seven chaetae anterior to clitellum, and four to six chaetae posteriorly. The longest measured chaetae of each worm 135–145 µm long, ~6–7 µm wide. Epidermis loosely covered with rows of pale gland cells. Clitellum not fully developed. Head pore not observed. Coelomocytes numerous, 15–30 µm long; round, oval or spindle shaped; granulated with distinct nucleus. Paired pharyngeal glands (Fig. 8B) present in IV, V and VI, with third pair extending back into VII; each pair converging dorsally, but connections not ...