Acrobeloides bodenheimeri ( Steiner, 1936 ) Thorne, 1937

Kim, Taeho & Park, Yucheol Lee and Joong-Ki, 2021, First report and morphological description of two Acrobeloides species (Nematoda: Rhabditida: Cephalobidae) in South Korea, Journal of Species Research 10 (4), pp. 405-411 : 406-408

publication ID

https://doi.org/ 10.12651/JSR.2021.10.4.405

persistent identifier

https://treatment.plazi.org/id/03CB87EF-0533-FFDF-AF21-F9F5EF9DF733

treatment provided by

Felipe

scientific name

Acrobeloides bodenheimeri ( Steiner, 1936 ) Thorne, 1937
status

 

Acrobeloides bodenheimeri ( Steiner, 1936) Thorne, 1937 View in CoL ( Table 1, Fig. 1 View Fig )

Ṟffi꼬Ḩẘfflḏẃflệ (ljḍ)

Acrobeles bodenheimeri View in CoL : Steiner, 1936: 77, fig. 24. Cephalobus bodenheimeri View in CoL : Andrássy, 1984: 170. Rafiqius bodenheimeri View in CoL : Khan and Hussain, 1997: 140. Acrobeloides rotundifolius View in CoL : Bussau, 1991: 122, abb. 7. Acrobeloides bodenheimeri View in CoL : Thorn, 1937: 11.

Material examined. 1$, Buk-myeon , Uichang-gu, Changwon-si, Gyeongsangnam-do, South Korea (GPS coordinates: 35°22′22.5″N, 128°36′47.3″E) GoogleMaps , extracted by sieving and the Baermann funnel method from potato farm soil. The specimen (slide No. NIBRIV0000862892) is deposited at the National Institute of Biological Resources , South Korea .

Measurements. See Table 1.

Description. Female: Body cylindrical, length 529.5 μm long, ventrally curved after fixation ( Fig. 1A View Fig ). Cuticle annulated; annuli 2.0 μm wide and 1.0 μm thick at mid-body. Lateral field occupying 22.2% of width of body at mid-body. Lateral incisures varying in number along body length: three incisures between procorpus region and deirid, branching off from deirid into five incisures ( Fig. 1B View Fig ); two incisures fading out between anus and phasmid region; three incisures extending to tail terminus ( Fig. 1C View Fig ). Head region continuous with neck. Lip region 7.5 μm in diameter, with triradiate symmetry with 6 + 4 papillae ( Fig. 1D View Fig ). Three pairs of asymmetrical lips; pairs of lips separated by U-shaped primary axils. Guarding process absent. Cephalic probolae absent. Three low and rounded labial probolae present. Stoma cephaloboid; length 1.6 times the lip region diameter ( Fig. 1B View Fig ). Cheilorhabdions oval-shaped. Small dorsal denticle on metastom. Pharyngeal corpus fusiform with swollen metacorpus, 3.1 times isthmus length. Isthmus narrower than corpus, distinctly demarcated from metacorpus. Basal bulb oval-shaped with well-developed valves; 1.4 times as long as its width. Cardia inconspicuous, surrounded by intestinal tissue. Nerve ring located in posterior corpus, at 63.7% of pharynx length. Excretory pore position at posterior corpus, at 63.8% of pharynx length. Position of deirids in lateral field at anterior isthmus, at 71.5% of total neck length. Reproductive system monodelphic-prodelphic ( Fig. 1E View Fig ). Vulva lips not protruding. Vagina length 0.6 times body diameter. Post-uterine sac 2.6 times body width. Uterus length 3.2 times body diameter. Spermatheca 1.9 times body width. Oviduct short. Ovary straight, with a single row of oocytes. Rectum length 1.5 times anal body diameter ( Fig. 1C View Fig ). Tail conoid, with truncated terminus. Phasmids located middle of tail, at 48.1% of tail length.

Male: Unknown.

Distribution. Denmark ( Bussau, 1991), Israel ( Steiner, 1936), Mongolia ( Andrássy, 1967), Malawi ( Siddiqi et al., 1992), South Korea (this study), Spain ( Abolafia and Peña-Santiago, 2003), and USA ( De Ley et al., 1999).

Habitat. Soil sample from a potato farm.

Remarks. Morphological characters of the specimen described in this study generally agree with previous studies ( Steiner, 1936; Siddiqi et al., 1992; De Ley et al., 1999; Abolafia and Peña-Santiago, 2003), except for total body length (529 vs 613-1,530 μm), the ratio of body length to body width (a = 27.2 vs 15.0-24.3), the ratio of total body length to pharynx length (b = 3.4 vs 4.0-7.8) and corpus to isthmus ratio (3.1 vs 3.3-7.2). Although these morphometric measurements of the specimen examined from a single individual differ from A. bodenheimeri , they are considered intraspecific variations as previously reported from many other Acrobeloides species ( Anderson, 1965; 1968; Boström and Gydemo, 1983; De Ley et al., 1999; Abolafia and Peña-Santiago, 2003). Morphometric analysis using multiple nematode individuals is further required to delimitate morphological variation of the species.

Kingdom

Animalia

Phylum

Nematoda

Class

Chromadorea

Order

Rhabditida

Family

Cephalobidae

Genus

Acrobeloides

Loc

Acrobeloides bodenheimeri ( Steiner, 1936 ) Thorne, 1937

Kim, Taeho & Park, Yucheol Lee and Joong-Ki 2021
2021
Loc

Acrobeles bodenheimeri

Khan, H. A. & S. S. Hussain 1997: 140
Bussau, C. 1991: 122
Andrassy, I. 1984: 170
Steiner, G. 1936: 77
1936
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