taxonID	type	description	language	source
03DB87C1FF92E0355BECF8B3E2C1C3CA.taxon	description	Figure 1 A – E	en	Martinsson, Svante, Klinth, Mårten, Erséus, Christer (2018): A new Scandinavian Chamaedrilus species (Clitellata: Enchytraeidae), with additional notes on others. Zootaxa 4521 (3): 417-429, DOI: 10.11646/zootaxa.4521.3.7
03DB87C1FF92E0355BECF8B3E2C1C3CA.taxon	materials_examined	Holotype.. ZMBN 126053, specimen CE 32716, immature, anterior part on slide, COI barcode, GenBank acc. no. MH 810224, leg. Christer Erséus & Mårten Klinth, 2 Jun 2017. Type locality. NORWAY: Akershus, Baerum, Sandvika, Sandvikselva River, in sandy river sediment close to the river bank; N 59.8932, E 10.5094. Paratypes. ZMBN 126052, specimen CE 32715, immature, anterior part on slide, COI barcode, GenBank acc. no. MH 810230, from type locality, same collection data as for holotype; ZMBN 126054, specimen CE 32735, immature, anterior part on slide, COI barcode, GenBank acc. no. MH 810228; NORWAY: Akershus, Baerum, Sandvika, Sandvikselva River, in sandy, gravelly river sediment in the middle of the river; N 59.8933, E 10.5094, same collection data as for holotype; ZMBN 126055, specimen CE 32736, immature, anterior part on slide, COI barcode acc. no. MH 810229; same locality and collection data as for second paratype above. Other material. Three immature specimens on slides, one from Svartån River, Örebro, Sweden (CE 27752), one from Frognerelva River, Oslo, Norway (CE 26608), and one from Askelunden Forest, Mols Bjerge, Denmark (CE 35144), see Table 1 for more details.	en	Martinsson, Svante, Klinth, Mårten, Erséus, Christer (2018): A new Scandinavian Chamaedrilus species (Clitellata: Enchytraeidae), with additional notes on others. Zootaxa 4521 (3): 417-429, DOI: 10.11646/zootaxa.4521.3.7
03DB87C1FF92E0355BECF8B3E2C1C3CA.taxon	etymology	Etymology. The species epithet asloae is a noun in the genitive case formed of the Latin name for the capital of Norway, Oslo; two of the four localities where the species was found are in or close to Oslo.	en	Martinsson, Svante, Klinth, Mårten, Erséus, Christer (2018): A new Scandinavian Chamaedrilus species (Clitellata: Enchytraeidae), with additional notes on others. Zootaxa 4521 (3): 417-429, DOI: 10.11646/zootaxa.4521.3.7
03DB87C1FF92E0355BECF8B3E2C1C3CA.taxon	diagnosis	Diagnosis. The species can be separated from all other Chamaedrilus species, except C. chalupskyi Martinsson, Rota & Erséus, 2015 a on the basis of the following combination of characters: 2 chaetae in lateral bundles in II, 3 in all other bundles, 4 – 6 pairs of pharyngeal glands, 0 - 2 pairs of pharyngeal glands fused dorsally; dorsal blood vessel originates posterior to segment XV.	en	Martinsson, Svante, Klinth, Mårten, Erséus, Christer (2018): A new Scandinavian Chamaedrilus species (Clitellata: Enchytraeidae), with additional notes on others. Zootaxa 4521 (3): 417-429, DOI: 10.11646/zootaxa.4521.3.7
03DB87C1FF92E0355BECF8B3E2C1C3CA.taxon	description	Description. External characters: Size: length of 20 anteriormost segments 3.2 – 4.2 mm, mean 3.8 ± 0.42 mm (n = 5); body width in XII 0.24 – 0.43 mm, mean 0.34 ± 0.07 mm (n = 6). Chaetae (Fig. 1 D – E) sigmoid without nodulus, 55 – 90 µm long, chaetal formula 3 – 3 (4): 3 – 3, but with only 2 chaetae in the lateral bundles of II. Internal characters: Brain (Fig. 1 C) slightly concave posteriorly, 150 – 240 µm long, about 1.5 – 2 times as long as broad. Pharyngeal glands (Fig. 1 A – B, arrows) 4 – 6 primary pairs, sixth pair rudimentary if present, 0 – 2 anteriormost pairs dorsally fused, pair 4 and / or 5 with ventral lobes; development is irregular and glands are often smaller, or completely missing at one side, but present at the other. Dorsal blood vessel arising in XV – XVI. First pair of nephridia present at 8 / 9 – 9 / 10; nephridia (Fig. 1 F) about 100 – 130 µm long, with efferent duct originating anteroventrally, close to septum in preclitellar segments, in postclitellar segments duct originating in middle of postseptale; anteseptale consisting of funnel only; postseptale elongate. Chloragogen cells 30 – 55 µm long. Coelomocytes finely granulated, round to oval, about 15 – 30 µm long, concentrated to posterior part of body. One specimen (Paratype CE 32715) with developing testes and sperm funnels in VIII and developing ovaries in IX, but these organs are too undeveloped to be further described. All other specimens immature. Habitat and distribution. Mainly benthic, so far found in three rivers, Frognerelva and Sandvikselva in South-East Norway, and Svartån in South-Central Sweden, as well in wet soil in a deciduous forest in Central Denmark. The specimen from Frognerelva was found in sandy soil in a pond, with slowly flowing water directly connected with the river, in Sandvikselva the worms were found in sandy sediment with some gravel, two close to the shore (CE 32715, CE 32716) and two in the middle of the river (CE 32735, CE 32736), and in both places with rapid water moment above. The Svartån individual was also found in sandy sediment in a fast-flowing stretch of the river. At the Danish site at Askelunden also the aquatic Stylodrilus heringianus Claparède, 1862 (Lumbriculidae) was found, which indicates groundwater seepage.	en	Martinsson, Svante, Klinth, Mårten, Erséus, Christer (2018): A new Scandinavian Chamaedrilus species (Clitellata: Enchytraeidae), with additional notes on others. Zootaxa 4521 (3): 417-429, DOI: 10.11646/zootaxa.4521.3.7
03DB87C1FF92E0355BECF8B3E2C1C3CA.taxon	biology_ecology	Biology. The main mode of reproduction is unknown. One specimen (CE 27752, from Sweden) had a regenerating head, and one paratype was in early stages of sexual maturity.	en	Martinsson, Svante, Klinth, Mårten, Erséus, Christer (2018): A new Scandinavian Chamaedrilus species (Clitellata: Enchytraeidae), with additional notes on others. Zootaxa 4521 (3): 417-429, DOI: 10.11646/zootaxa.4521.3.7
03DB87C1FF92E0355BECF8B3E2C1C3CA.taxon	discussion	Remarks. No morphological characters clearly separating this species from C. chalupskyi were found in the studied specimens, and the two taxa must be considered a pair of cryptic species. In our scrutiny of the limited material of C. asloae, we did note a tendency for the new species to have fewer (only 0 – 2) pairs of pharyngeal glands that are fused dorsally than what is the case for C. chalupskyi (normally with 2 – 4 such pairs), but the state of this character is not always easy to determine in whole-mounted worms. The new species is also similar to C. valeriae (Dumnicka, 2010), only known from a stream in the Italian Alps. Both species share the fused anterior pharyngeal glands (2 pairs fused in C. valeriae), presence of ventral lobes on some pharyngeal glands (present on 2 – 3 pair in C. valeriae), and a more posterior arising of the dorsal blood vessel (arises in XXII in C. valeriae), but C. valeriae has a mix of 2 and 3 chaetae in the preclitellar lateral bundles (Dumnicka 2010; Martinsson et al. 2015 a).	en	Martinsson, Svante, Klinth, Mårten, Erséus, Christer (2018): A new Scandinavian Chamaedrilus species (Clitellata: Enchytraeidae), with additional notes on others. Zootaxa 4521 (3): 417-429, DOI: 10.11646/zootaxa.4521.3.7
03DB87C1FF94E0375BECF9E1E342C5D8.taxon	description	Figure 2 A – B	en	Martinsson, Svante, Klinth, Mårten, Erséus, Christer (2018): A new Scandinavian Chamaedrilus species (Clitellata: Enchytraeidae), with additional notes on others. Zootaxa 4521 (3): 417-429, DOI: 10.11646/zootaxa.4521.3.7
03DB87C1FF94E0375BECF9E1E342C5D8.taxon	materials_examined	Material studied. CE 22111, CE 22112, CE 32524, CE 32998, CE 32999, CE 33033 (all from Norway), and CE 33370 (from Sweden), all specimens mature, see Table 1 for more information	en	Martinsson, Svante, Klinth, Mårten, Erséus, Christer (2018): A new Scandinavian Chamaedrilus species (Clitellata: Enchytraeidae), with additional notes on others. Zootaxa 4521 (3): 417-429, DOI: 10.11646/zootaxa.4521.3.7
03DB87C1FF94E0375BECF9E1E342C5D8.taxon	description	Description of genital organs. Male genitalia (Fig. 2 A) paired. Sperm funnel cylindrical, about 255 – 330 µm long, 80 – 115 µm wide, making them about 3 times longer than wide; collar 55 – 90 µm wide. Vas deferens coiled numerous times around ovaries (Fig. 2 A), at least 2000 µm long, about 10 µm wide. Penial bulb about 75 – 100 µm long. Male pores in one of segments IX – XII, mostly X. Spermathecae (Fig. 2 B) paired; pore located slightly below line of lateral chaetae; duct smooth, 155 – 285 µm long, about 20 – 25 µm wide; ectal gland 55 – 85 µm in diameter; ampulla spherical, about 45 – 70 µm wide, containing sperm arranged in circle; ampulla followed by duct connecting to spherical ental chamber, about 60 – 190 µm wide, containing loosely packed sperm; ampulla in V or VI, ental chamber of one spermatheca usually occupying VI and the other VII; spermatheca not connected to oesophagus.	en	Martinsson, Svante, Klinth, Mårten, Erséus, Christer (2018): A new Scandinavian Chamaedrilus species (Clitellata: Enchytraeidae), with additional notes on others. Zootaxa 4521 (3): 417-429, DOI: 10.11646/zootaxa.4521.3.7
03DB87C1FF94E0375BECF9E1E342C5D8.taxon	discussion	Remarks. In the original description of this species, Martinsson et al. (2015 a) described the sexual characters from a specimen with rudimentary male genitalia. Thus, we here amend this by describing the fully developed male genital duct and spermatheca. However, this species mainly reproduces by fragmentation, and sexually mature specimens are rare.	en	Martinsson, Svante, Klinth, Mårten, Erséus, Christer (2018): A new Scandinavian Chamaedrilus species (Clitellata: Enchytraeidae), with additional notes on others. Zootaxa 4521 (3): 417-429, DOI: 10.11646/zootaxa.4521.3.7
03DB87C1FF97E0375BECF9D1E0C3C381.taxon	description	Figure 2 C	en	Martinsson, Svante, Klinth, Mårten, Erséus, Christer (2018): A new Scandinavian Chamaedrilus species (Clitellata: Enchytraeidae), with additional notes on others. Zootaxa 4521 (3): 417-429, DOI: 10.11646/zootaxa.4521.3.7
03DB87C1FF97E0375BECF9D1E0C3C381.taxon	materials_examined	Material studied. CE 23081 (from northern Norway), mature specimen, see Table 1 for more information	en	Martinsson, Svante, Klinth, Mårten, Erséus, Christer (2018): A new Scandinavian Chamaedrilus species (Clitellata: Enchytraeidae), with additional notes on others. Zootaxa 4521 (3): 417-429, DOI: 10.11646/zootaxa.4521.3.7
03DB87C1FF97E0375BECF9D1E0C3C381.taxon	description	Description of spermatheca. Spermathecae (Fig. 2 C) paired; pore located slightly below line of lateral chaetae; duct smooth, 195 – 225 µm long, about 15 µm wide; ectal gland about 35 µm in diameter; ampulla oval, about 35 µm wide, containing loosely arranged sperm; ampulla followed by duct connecting to spherical ental chamber, about 55 µm wide; ampulla in V or VI, ental chamber of one spermatheca usually occupying VI and the other VII; spermatheca not connected to oesophagus.	en	Martinsson, Svante, Klinth, Mårten, Erséus, Christer (2018): A new Scandinavian Chamaedrilus species (Clitellata: Enchytraeidae), with additional notes on others. Zootaxa 4521 (3): 417-429, DOI: 10.11646/zootaxa.4521.3.7
03DB87C1FF97E0375BECF9D1E0C3C381.taxon	discussion	Remarks. In the original description, Martinsson et al. (2015 b) illustrated a spermatheca that was not fully developed, here we describe and illustrate one that is.	en	Martinsson, Svante, Klinth, Mårten, Erséus, Christer (2018): A new Scandinavian Chamaedrilus species (Clitellata: Enchytraeidae), with additional notes on others. Zootaxa 4521 (3): 417-429, DOI: 10.11646/zootaxa.4521.3.7
