Haplonema immutatum Ward & Magath, 1917
publication ID |
https://doi.org/ 10.11646/zootaxa.4185.1.1 |
publication LSID |
lsid:zoobank.org:pub:0D054EDD-9CDC-4D16-A8B2-F1EBBDAD6E09 |
DOI |
https://doi.org/10.5281/zenodo.5627007 |
persistent identifier |
https://treatment.plazi.org/id/038FB248-FF1D-FF1A-89B9-C533229C9806 |
treatment provided by |
Plazi |
scientific name |
Haplonema immutatum Ward & Magath, 1917 |
status |
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Haplonema immutatum Ward & Magath, 1917
Description (after Arthur & Margolis 1975). With characteristics of the genus.
Males: 11.82–15.50 (10.40–11.64) long; maximum width 0.21–0.27 (0.25–0.28). Cuticle striated. Head with four submedian single papillae and two lateral amphids. Lips absent, mouth opening directly into oesophagus, 0.673–0.828 (0.724–0.811) long. Nerve ring 0.301–0.361 (0.304–0.336) from anterior end. Excretory pore slightly anterior to oesophago-intestinal junction. 0.723 in one syntype (0.680–0.689) from anterior end. Lateral alae extending from anterior end to level of 1st pair caudal papillae. Digitate deirids anterior to oesophago-intestinal junction, 0.504–0.616 (0.483–0.525) from anterior end ( Fig. 100 View FIGURE 100 A). Testis origin as in H. hamulatum (see above). Spicules long, slender, about equal: left one 0.584–0.747 (0.740–0.756), right one 0.573–0.712 (0.738–0.758) long. Gubernaculum small, curved ventrally, 0.051–0.054 (0.050–0.054) long. Ten pairs caudal papillae ( Fig. 100 View FIGURE 100 B). Phasmids not observed. Caudal alae absent. Tail 0.164–0.201 (0.195–0.208) long.
Females: 13.29–15.57 (11.69–14.74) long. Head and oesophagus structure and cuticular striations as in males. Oesophagus 0.678–0.805 (0.680–0.856) long. Nerve ring 0.320–0.369 (0.286–0.3740 from anterior end. Excretory pore slightly anterior to oesophago-intestinal junction, 0.515 in one syntype (0.585–0.763) from anterior end. Lateral alae extending from anterior end to slightly anterior to anus. Digitate deirids slightly anterior to oesophagointestinal junction, 0.565–0.577 (0.425–0.569) from anterior end. Vulva in posterior half of body, 8.61–9.81 (7.19– 9.48) from anterior end ( Fig. 100 View FIGURE 100 C). Muscular vagina directed anteriorly, 0.230–0.268 (0.212–0.336) long. Uteri amphidelphic. Eggs 0.052–0.069 x 0.039–0.052 (0.044–0.064 x 0.034–0.045). Tail 0.221–0.297 (0.209–0.253) long. Phasmids distinct, anterior to mid-length of tail.
Site: intestinal lumen
Host: Amia calva
Distribution: Ontario
Records: Bangham & Hunter 1939; Bangham 1955
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.
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