Gryllophila skrjabini (Sergiev, 1923)
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publication ID |
https://doi.org/ 10.11606/0031-1049.2017.57.37 |
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persistent identifier |
https://treatment.plazi.org/id/03F45574-6C19-022F-93BC-F9DDAE2F7F6B |
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treatment provided by |
Carolina |
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scientific name |
Gryllophila skrjabini (Sergiev, 1923) |
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Gryllophila skrjabini (Sergiev, 1923)
Description
Morphology
Female: 3.4 mm long. Cuticule conspicuously striated; first annule 17 µm large, the following annules increases regularly until the ninth annule which is 50 µm wide; posterior to the ninth annule a width of 30 to 40 µm is maintained almost regularly; behind the vulva they may decrease to 10 µm only ( Fig. 1A View FIGURE 1 ). Oral opening subtriangular, surrounded by a circumoral elevation and eight labiopapillae; amphids present. Buccal cavity cylindrical, 20 µm deep by 10 µm wide. Oesophagus 446 µm long, consisting of a corpus of 316 µm by 45 µm wide, an isthmus 30 µm long by 35 µm wide, and a valvular bulb 100 µm long by 110 µm wide. Nerve ring 184.5 µm from anterior end of body. Excretory pore very much posterior to base of oesophagus, at about one-third of body length from anterior end ( Fig. 1C View FIGURE 1 ). Intestine dilated anteriorly to form a bulky cardia, which narrows suddenly into a rather thin intestine ( Fig. 1A View FIGURE 1 ). Anus 337. 5 µm from the posterior end of body; tail conically attenuated ( Fig. 1F View FIGURE 1 ). Vulva in the posterior third of the body. Two ovaries, both connected with their respective uteri at about the level of the excretory pore, the uteri running parallel in a posterior direction, uniting a little behind the level of the vulva and giving rise to a single uterus which runs anteriad, coming up to the level of the excretory pore where it is reflexed and runs backwards until it meets the vagina; vagina long ( Fig. 1E View FIGURE 1 ). Ellipsoidal large eggs (144 to 155 µm long by 90 to 99 µm wide), with a thick shell bearing spine-like outgrowths ( Fig. 1D View FIGURE 1 ), placed in a two-cell stage and chained by a tubular structure probably formed by a mucous secretion oviduct ( Basir, 1956; Shah et al., 2012).
Morphometry
Female (n = 3): total length = 3451.5 ± 27 (3432-3471), cephalic diameter = 18, distance from anterior end to nerve ring = 184.5 ± 6.36 (180-189), width at level of nerve ring = 202.5 ± 6.36 (198-207), oesophagus length = 446 ± 7.07 (441-451), anterior distance to basal bulb = 329 ± 7.07 (324-334), distance from anterior end to excretory pore = 948.5 ± 4.9 (945-952), greatest width = 445 ± 5.6 (441-449), width at level of vulva = 322 ± 9.8 (315-329), vulval length = 18, vulval width = 36 V = 74% ± 1 (73%-75%), posterior end width = 265.6 ± 63 (261-270), tail length = 337.5 ± 6.3 (333-342), egg length = 147.6 ± 7.7 (144-155), egg width = 96 ± 6.3 (90-99).
Male: not found.
Host: adults of the mole cricket Neocurtilla claraziana Saussure, 1874 .
Locality: Villa Elisa (34°52’02”S; 58°04’28”W)
Site of infection: hindgut (last part of intestine).
Prevalence: 0.3%.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.