Zalonema ditlevseni ( Micoletzky, 1922 )
publication ID |
https://doi.org/ 10.5852/ejt.2014.96 |
publication LSID |
lsid:zoobank.org:pub:21EC0039-C374-47FA-AA88-46954CC7C5BD |
DOI |
https://doi.org/10.5281/zenodo.3852452 |
persistent identifier |
https://treatment.plazi.org/id/038E87B4-8E4C-0768-FD8A-592DC1F6FAB8 |
treatment provided by |
Tatiana |
scientific name |
Zalonema ditlevseni ( Micoletzky, 1922 ) |
status |
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Zalonema ditlevseni ( Micoletzky, 1922) Figs 6C–D View Fig , 8 View Fig , Table 1 View Table 1
Heterodesmodora ditlevseni Micoletzky, 1922: 89 .
Desmodora ocellata Wieser, 1954: 172 .
Desmodora (Zalonema) ditlevseni – Gerlach 1963: 92.
Material examined
10 ♂♂, 10 ♀♀ and 10 juveniles, deposited in the nematode collection at Centro de Investigaciones Marinas, Universidad de La Habana, CUBA.
Description
Cuticle coarsely striated in anterior body region (annuli ~ 0.6–0.8 μm width) but narrower at mid-body (annuli ~ 0.5 µm). Head capsule well-developed. Inner and outer labial sensilla setiform papillae. Four cephalic sensilla (4–6 μm long) and eight subcephalic setae (4–6 μm long) almost at the same level on the head capsule. Amphidial fovea spiral with 2.0–2.5 turns. Eight longitudinal rows of short somatic setae (~ 1–3 μm long), reduced to six rows at mid body and four rows in the posterior region. Buccal cavity with 12 cheilorhabdia, a strong dorsal tooth and two smaller ventrosublateral teeth. Pharynx muscular with posterior bulb and plasmatic interruptions, internal lining conspicuous and well-sclerotized. Cardia relatively small. Secretory-excretory system not observable. Tail conical, showing sexual dimorphism i.e., markedly bent in males and with two short subterminal setae in the tip, while more regularly conical and without subterminal setae in female.
Male monorchic, anterior testis to the right of the intestine. Spicules wide, curved, weakly cephalated. Gubernaculum a narrow rod. One or two small post-cloacal supplements in form of pits.
Female didelphic, ovaries antidromously reflexed, both genital branches to the left of intestine. Vulva a narrow transversal aperture.
Juveniles are similar to adults, except for the development of the reproductive system.
Remarks
There exist only a few detailed descriptions of Z. ditlevseni despite the high number of junior synonymies for this species. The body size of the single male specimen described by Gerlach (1964) lies within the range of the Cuban specimens (males: 1590 µm vs 847–2022 µm); however, the single female specimen described by Schuurmans Stekhoven (1950) is slightly outside the higher range for the Cuban specimens (female: 1420 µm vs 898–1380). The relatively wide range of morphological variation in the body length of the species possibly masks a complex of cryptic species.
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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Genus |
Zalonema ditlevseni ( Micoletzky, 1922 )
Armenteros, Maickel, Ruiz-Abierno, Alexei & Decraemer, Wilfrida 2014 |
Desmodora (Zalonema) ditlevseni
Gerlach S. A. 1963: 92 |
Desmodora ocellata
Wieser W. 1954: 172 |
Heterodesmodora ditlevseni
Micoletzky H. 1922: 89 |