World Database of Nematodes

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Gagarin, V. G.; Naumova, T. V. (2012). Paramononchus orientalis sp. n. and Ethmolaimus maximus sp. n. (Nematoda) from Lake Baikal, Russia. Zootaxa. (3513): 51-60.
197066
urn:lsid:zoobank.org:pub:B9CE4C9B-BDA3-4938-B6F7-6A7CFC220507 [view]
Gagarin, V. G.; Naumova, T. V.
2012
<em>Paramononchus</em> <em>orientalis</em> sp. n. and <em>Ethmolaimus</em> <em>maximus </em>sp. n. (Nematoda) from Lake Baikal, Russia
Zootaxa
(3513): 51-60
Publication
Available for editors  PDF available [request]
Two nematode species found in Lake Baikal, Russia are described. Paramononchus orientalis sp. n is morphologically close to P. arcticus Mulvey, 1978, but differs from it in the shorter body (L = 3.08–3.78 mm vs L = 3.5–4.0 mm), larger buccal cavity (64–68 x 30–32 µm vs 44–48 x 19–21 µm), larger eggs (140–155 x 80–87 µm vs 105–110 x 60–80 µm), less slender tail in females (c’ = 4.2–5.0 vs c’ = 5.7–6.5), longer spicules (208–238 µm long vs 70 µm long) and shape of gubernaculum. A key for the identification of valid species of the genus Paramononchus is given. Ethmolaimus maximus sp. n. is the largest species yet described in the genus Ethmolaimus. It differs from E. pratensis de Man, 1880 in the longer body (L = 1.65–2.09 mm vs L = 0.6–1.2 mm), comparatively shorter pharynx (b = 8.0–9.6 vs b = 4.8–7.0), comparatively longer cephalic setae (45–55 % of labial region diameter vs 30–35 % of labial region diameter) and longer spicules (52–56 µm long vs 38–48 µm long). Ethmolaimus intermedius Jensen, 1994 is synonymized with Ethmolaimus pratensis de Man, 1880
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