Cernosvitoviella cf. tridentina Dumnicka, 2004

Martin, Patrick, Schmelz, Rüdiger M. & Dole-Olivier, Marie-José, 2015, Groundwater oligochaetes (Annelida, Clitellata) from the Mercantour National Park (France), with the descriptions of one new genus and two new stygobiont species, Zoosystema 37 (4), pp. 551-569 : 563

Cernosvitoviella cf. tridentina Dumnicka, 2004

Cernosvitoviella tridentina Dumnicka, 2004: 133 .

MATERIAL EXAMINED. — Station 1, slide 11.006.02. IRScNB, I.G. 32392.

REMARKS

The single adult specimen is posteriorly severed. It conforms to most of the details in the original description of C. tridentina from the Italian Alps, the male efferent system included. The spermathecae also agree, except that the ectal duct is shorter than originally described, measuring c. 30 µm by 9 µm, being only 1.5 × as long as the spherical ampulla (its diameter 20 µm). In the original description, the ectal duct is 4-5 × as long as the ampulla; dimensions are not given. It is impossible to say at the moment whether this difference is intra- or interspecific. Different ectal duct lengths are known in C. atrata (Bretscher, 1903) , but that taxon may be a species complex. The clitellum is dorsally closed in our material and the prostomium has numerous internal papillae; these details are not originally described for C. tridentina . There are up to nine setae per bundle. Coelomocyte are broadly oval or rounded in C. tridentina ; they were not seen in our material. The present record, if identified correctly, would be the first after the original description.

Cernosvitoviella cf. parviseta

Gadzinska, 1974

Cernosvitoviella parviseta Gadzinska, 1974: 403 .

MATERIAL EXAMINED. — Station 15, slide 11.252.02(b,d): 2 immature specimens, 11.252.02(c): 1 adult specimen ; station 22, slide 11.262.01(b): 1 mature specimen; station 33, slide 11.255.04(b): 1 adult specimen; station 36, slide 11.257.02: 1 mature specimen. IRScNB, I.G. 32392.

REMARKS

Setae are longer (20-30 µm) than originally described (15 µm). Very similar to Cernosvitoviella aggtelekiensis Dózsa-Farkas, 1970 , but the latter species is distinguishable by its larger setae (35-42 µm). A similar observation was made on subterranean specimens identified as C. aggtelekiensis in Giani et al. (2011), which have setal lengths intermediate between those of C. parviseta and C. aggtelekiensis as originally described, while other characters (see Schmelz & Collado 2010) fit both species. Cernosvitoviella aggtelekiensis and C. parviseta have never be redescribed, therefore the degree of intraspecific variability of setal lengths is unknown in both species. The two populations may belong to the same species, which could be C. aggtelekiensis , C. parviseta , or an undescribed species. A reinvestigation of the types of C. aggtelekiensis and C. parviseta is urgently needed.

Family HAPLOTAXIDAE Michaelsen, 1900