Cernosvitoviella atrata ( Bretscher, 1903 )

Dózsa-Farkas, Klára, Csitári, Bianka & Felföldi, Tamás, 2017, A new Cernosvitoviella species (Clitellata: Enchytraeidae) and its comparison with other Cernosvitoviella species from Sphagnum mires in Hungary, Zootaxa 4254 (3), pp. 322-338 : 329-330

publication ID

https://doi.org/10.11646/zootaxa.4254.3.2

publication LSID

lsid:zoobank.org:pub:6F7301AD-20E4-48B5-A143-499FCAE083B3

DOI

https://doi.org/10.5281/zenodo.6029232

persistent identifier

https://treatment.plazi.org/id/611E1238-FFA6-FFF0-FF56-F0669BFCFDBA

treatment provided by

Plazi

scientific name

Cernosvitoviella atrata ( Bretscher, 1903 )
status

 

Cernosvitoviella atrata ( Bretscher, 1903)

( Figures 1 View FIGURE 1 C, 7–8)

Marionina atrata Bretscher, 1903: 5 , 17.

Enchytraeoides atratus (Bretscher) . Černosvitov 1928: 14 –16, text fig. 3, pl. I figs. 8, 9. Cernosvitoviella atrata (Bretscher) . Nielsen & Christensen 1959: 38 –39, figs 15–18. Kasprzak 1986: 109 –111, figs. 225, 252– 260. Chalupský 1992: 140 –141, fig. 7. Rota 1995: 193. Rota & Healy 1999: 31. Timm 2009: 148 –149. Schmelz & Collado 2010: 57, 62. Schmelz et al. 2015: 516 –517.

Material investigated: (in total 15 specimens), 1 specimen from site 1 (31.10. 2014), 7 specimens from site 2 (13.10.2014), 5 specimens from site 6 and 2 specimens from site 7 (31.03.2014).

Body 3–5 mm long, 150–200 µm wide at VIII and 170–250 µm at XII, segments 22–25. Chaetae ( Fig. 7 View FIGURE 7 G) sigmoid with nodulus, up to 6–7 per bundle, 3 2–40 µm long. Clitellum absent dorsally and ventrally. In the prostomium about 8 large rounded papillae ( Fig. 7 View FIGURE 7 B). Brain ( Fig. 7 View FIGURE 7 A) incised posteriorly, about 10 µm long and 1.5 times longer than wide. Two pairs primary and two pairs secondary pharyngeal glands ( Fig. 8 View FIGURE 8 A,B). Coelomocytes 14–20 µm long, variable, mostly oval, without ( Fig. 7 View FIGURE 7 C) or with refractile granules, brown in transmittent light and often have long fine hyaline plasma threads ( Fig. 7 View FIGURE 7 D). Dorsal vessel origin in XII–XIII. Blood light pink. Seminal vesicle absent. Sperm funnels funnel-shaped ( Fig. 7 View FIGURE 7 E,H,I) 55–80 µm long, vas deferens 150–300 µm long and 15– 20 µm wide proximally and gradually tapering to 8–11 µm width distally. Male opening ( Fig. 7 View FIGURE 7 E–F) surrounded with glands, diameter 35–55 µm. Spermatozoa 30–50 µm long, heads 15–25 µm. Spermathecae ( Figs. 1 View FIGURE 1 C, 8A–D) confined to V, ampullae elongate, about as long or somewhat shorter than the length of the ectal ducts, sperm arranged lengthwise.

Kingdom

Animalia

Phylum

Annelida

Class

Clitellata

Order

Enchytraeida

Family

Enchytraeidae

Genus

Cernosvitoviella

Loc

Cernosvitoviella atrata ( Bretscher, 1903 )

Dózsa-Farkas, Klára, Csitári, Bianka & Felföldi, Tamás 2017
2017
Loc

Enchytraeoides atratus

Schmelz 2015: 516
Schmelz 2010: 57
Timm 2009: 148
Rota 1999: 31
Rota 1995: 193
Chalupsky 1992: 140
Kasprzak 1986: 109
Nielsen 1959: 38
Cernosvitov 1928: 14
1928
Loc

Marionina atrata

Bretscher 1903: 5
1903