Diphascon (Diphascon) zaniewi, Kaczmarek, L Ukasz & Michalczyk, L Ukasz, 2004
publication ID |
https://doi.org/ 10.5281/zenodo.157712 |
DOI |
https://doi.org/10.5281/zenodo.5657695 |
persistent identifier |
https://treatment.plazi.org/id/F76087AF-7E15-E876-FEF0-22BAFE48FB94 |
treatment provided by |
Plazi |
scientific name |
Diphascon (Diphascon) zaniewi |
status |
sp. nov. |
1. Diphascon (Diphascon) zaniewi View in CoL sp. nov.
( Figs 1–4 View FIGURES 1 – 4 ; Tab. 1 View TABLE 1 )
Description
Holotype (2272/1): Body length 184.3 ( Fig. 1 View FIGURES 1 – 4 ). Body slender, transparent, eyes absent. Cuticle on dorsal and ventral side smooth and without pores. Peribucal lamellae and papulae absent.
Buccopharyngeal apparatus without strengthening bar. Dropshaped structure between rigid buccal and flexible pharyngeal tube present. Buccopharyngeal tube 53.2 long. Buccal tube 18.5 long and 0.9 [4.9] wide (34.8 % of total length of buccopharyngeal tube). Pharyngeal tube 34.7 long and 0.9 [4.9] wide. At end of pharyngeal tube small triangular apophyses present. Stylet supports inserted on buccal tube at 10.9 [58.9]. Pharyngeal bulb oval with three rodshaped macroplacoids (without central constrictions), very small granular microplacoid and septulum. First macroplacoid 2.9 [15.7] long, second 2.9 [15.7] long and third 4.3 [23.2] long. First and second macroplacoid in same length and each distinctly shorter then third one (configuration: 112). Septulum 1.9 [10.3] long. Macroplacoid row 11.4 [61.6] long. Placoid and septulum row 14.3 [77.3] long ( Fig. 2 View FIGURES 1 – 4 ).
Claws well developed and with distinct accessory points on primary branches. Claws on III pair of legs: external 8.6 [46.5], internal 6.2 [33.5]; IV pair of legs: posterior 9.5 [51.4], anterior 6.7 [36.2]. Lunules and other cuticular structures on legs absent ( Figs 3–4 View FIGURES 1 – 4 ). Eggs unknown.
Type material
Holotype (2272/1) and 7 (3 in simplex stage) paratypes on two slides (2272/1 and 2272/3): South Africa, Sun City, Dragon Mountains, moss from soil, 1000 m asl, near the waterfall, 12.2003, leg. Krzysztof Kaczmarek.
Type depositories
Holotype (2272/1) and 3 paratypes (2272/1) (one in simplex stage) are preserved at the Department of Animal Taxonomy and Ecology, A. Mickiewicz University, Pozna–, 3 paratypes (2272/3) (2 in simplex stage) are preserved in the collection of £. MICHALCZYK (Jagiellonian University, Poland).
Differential diagnosis
Diphascon (Diphascon) zaniewi sp. nov. differs from all species of the pingue group by having a very narrow buccal tube (less then 1.0) and second macroplacoid in the same length as the first one. Besides, it differs from the most similar:
1. Diphascon . (D.) pingue Marcus, 1936 by: smaller percentage proportion of buccal tube to buccopharyngeal tube (37.8–39.8 in D. (D.) pingue and 34.8–35.9 in D. (D.) zaniewi sp. nov.); longer macroplacoid row (6.7–10.7 [53.5–58.8] in D. (D.) pingue and 11.4–11.9 [61.6–65.7] in D. (D.) zaniewi sp. nov.); longer placoid and septulum row(8.7– 13.9 [51.5–62.9] in D. (D.) pingue and 14.3 [77.3–79.0] in D. (D.) zaniewi sp. nov.).
2. Diphascon (D.) pinguiforme Pilato & Binda, 1997 /98 by: smaller percentage proportion of buccal tube to buccopharyngeal tube (37.04 in D. (D.) pinguiforme and 34.8– 35.9 in D. (D.) zaniewi sp. nov.); shorter macroplacoids 1 and 2 (I 3.4–3.6 [18.7–19.0]; II 3.1–3.6 [16.9–19.0]) in D. (D.) pinguiforme and (I 2.9 [15.7–16.0]; II– 2.9 [15.7–16.0]) in D. (D.) zaniewi sp. nov.); shorter septulum (2.2–2.5 [11.8 –13.8] in D. (D.) pinguiforme and 1.9 [10.3–10.5] in D. (D.) zaniewi sp. nov.).
CHARACTERS | Paratype 1 [µm] ptd | Paratype 2 [µm] ptd | HOLOTYPE [µm] ptd |
---|---|---|---|
Body length | 175.8 950.3 | 183.4 1013.3 | 184.3 996.2 |
Buccal tube length | 18.5 | 18.1 | 18.5 |
Buccopharyngeal tube length | 52.3 282.7 | 50.4 278.5 | 53.2 287.6 |
Level of the stylet support insertion point | 10.9 58.9 | 10.5 58.0 | 10.9 58.9 |
Buccal tube external width | 0.9 4.9 | 0.9 5.0 | 0.9 4.9 |
Macroplacoid 1 length | 2.9 15.7 | 2.9 16.0 | 2.9 15.7 |
Macroplacoid 2 length | 2.9 15.7 | 2.9 16.0 | 2.9 15.7 |
Macroplacoid 3 length | 4.8 25.9 | 3.8 21.0 | 4.3 23.2 |
Septula length | 1.9 10.3 | 1.9 10.5 | 1.9 10.3 |
Macroplacoid row length | 11.4 61.6 | 11.9 65.7 | 11.4 61.6 |
Placoid row length | 14.3 77.3 | 14.3 79.0 | 14.3 77.3 |
Primary branch of external claw 2 length | 8.6 46.5 | 8.6 47.5 | 8.6 46.5 |
Primary branch of internal claw 2 length | 5.7 30.8 | 5.7 31.5 | 6.2 33.5 |
Primary branch of external claw 4 length | 5.7 30.8 | 6.2 34.3 | 6.7 36.2 |
Primary branch of internal claw 4 length | 8.6 46.5 | 9.0 49.7 | 9.5 51.4 |
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