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Two new and two known species of the genus Paraoxydirus Jairajpuri and Ahmad, 1978 (Nematoda: Dorylaimida) from Western Ghats of India Cover

Two new and two known species of the genus Paraoxydirus Jairajpuri and Ahmad, 1978 (Nematoda: Dorylaimida) from Western Ghats of India

By: S. Kumar and  W. Ahmad  
Open Access
|Sep 2021

Figures & Tables

Fig. 1

Paraoxydirus gigas Jairajpuri, 1964. (A) Entire male; (B) entire female; (C) anterior region; (D) anterior end showing amphid; (E) expanded part of pharynx; (F) female genital system; (G) vulval region; (H) male posterior region; (I) spicule; (J) male posterior region; (K) female posterior region.
Paraoxydirus gigas Jairajpuri, 1964. (A) Entire male; (B) entire female; (C) anterior region; (D) anterior end showing amphid; (E) expanded part of pharynx; (F) female genital system; (G) vulval region; (H) male posterior region; (I) spicule; (J) male posterior region; (K) female posterior region.

Fig. 2

Paraoxydirus gigas Jairajpuri, 1964. (A, B) Anterior region; (C) anterior region showing amphid; (D) expanded part of pharynx & DN; (E) cardia; (F) vulval region; (G,H) female genital branch; (I) rectum; (J) spicule; (K) ventromedian supplements; (L) female tail; (M) lateral guiding piece. (Scale bars: A – F, I, J, M = 10 μm; G, H, K = 20 μm; L= 100 μm).
Paraoxydirus gigas Jairajpuri, 1964. (A, B) Anterior region; (C) anterior region showing amphid; (D) expanded part of pharynx & DN; (E) cardia; (F) vulval region; (G,H) female genital branch; (I) rectum; (J) spicule; (K) ventromedian supplements; (L) female tail; (M) lateral guiding piece. (Scale bars: A – F, I, J, M = 10 μm; G, H, K = 20 μm; L= 100 μm).

Fig. 3

Paraoxydirus novus Jairajpuri, 1965. (A) Entire female; (B) anterior region; (C) anterior region showing amphid; (D) expanded part of pharynx; (E) female genital system; (F) vulval region; (G) female posterior region.
Paraoxydirus novus Jairajpuri, 1965. (A) Entire female; (B) anterior region; (C) anterior region showing amphid; (D) expanded part of pharynx; (E) female genital system; (F) vulval region; (G) female posterior region.

Fig. 4

Paraoxydirus novus Jairajpuri, 1965 (A) Anterior region showing body pores; (B) anterior region; (C) anterior region showing amphid; (D) expanded part of pharynx; (E) spiral muscular sheath; (F) cardia; (G) vulval region; (H, I) female genital branch; (J) proximal part of ovary showing muscular sheath; (K) rectum; (L) tail. (Scale bars: A – G, K = 10 μm; H – J = 20 μm; L= 100 μm).
Paraoxydirus novus Jairajpuri, 1965 (A) Anterior region showing body pores; (B) anterior region; (C) anterior region showing amphid; (D) expanded part of pharynx; (E) spiral muscular sheath; (F) cardia; (G) vulval region; (H, I) female genital branch; (J) proximal part of ovary showing muscular sheath; (K) rectum; (L) tail. (Scale bars: A – G, K = 10 μm; H – J = 20 μm; L= 100 μm).

Fig. 5

Paraoxydirus indicus n. sp. (A) Entire female; (B) entire male; (C) anterior region; (D) anterior end showing amphid; (E) expanded part of pharynx; (F) female genital system; (G) vulval region; (H) male posterior region; (I) spicule; (J) male posterior region; (K) female posterior region.
Paraoxydirus indicus n. sp. (A) Entire female; (B) entire male; (C) anterior region; (D) anterior end showing amphid; (E) expanded part of pharynx; (F) female genital system; (G) vulval region; (H) male posterior region; (I) spicule; (J) male posterior region; (K) female posterior region.

Fig. 6

Paraoxydirus indicus n. sp. (A, B) Anterior region; (C) anterior region showing amphid; (D) lip region in frontal view (female, SEM); (E) lateral view showing amphid (SEM); (F) pharyngeal expansion and spiral muscle sheath; (G) cardia; (H) vulval region; (I, J) female genital branch; (K) coelomocyte cells; (L) ventromedian supplements series; (M) spicule; (N) lateral guiding piece; (O) female tail. (Scale bars: A - C, G - H, M, N = 10 μm; D, E (SEM) = 2 μm; F, I-L= 20 μm; O = 100 μm).
Paraoxydirus indicus n. sp. (A, B) Anterior region; (C) anterior region showing amphid; (D) lip region in frontal view (female, SEM); (E) lateral view showing amphid (SEM); (F) pharyngeal expansion and spiral muscle sheath; (G) cardia; (H) vulval region; (I, J) female genital branch; (K) coelomocyte cells; (L) ventromedian supplements series; (M) spicule; (N) lateral guiding piece; (O) female tail. (Scale bars: A - C, G - H, M, N = 10 μm; D, E (SEM) = 2 μm; F, I-L= 20 μm; O = 100 μm).

Fig. 7

Paraoxydirus vulvalpapillatus n. sp. (A) Entire female; (B) entire male; (C) anterior region; (D) anterior end showing amphid; (E) expanded part of pharynx; (F) female genital system; (G) vulval region; (H) male posterior region; (I) female posterior region; (J) male posterior region; (K) spicule.
Paraoxydirus vulvalpapillatus n. sp. (A) Entire female; (B) entire male; (C) anterior region; (D) anterior end showing amphid; (E) expanded part of pharynx; (F) female genital system; (G) vulval region; (H) male posterior region; (I) female posterior region; (J) male posterior region; (K) spicule.

Fig. 8

Paroxydirus vulvalpapillatus n. sp. (A, B) Anterior region; (C) anterior end showing amphid; (D) expanded part of pharynx, DN; (E) S1N1, S1N2; (F) spiral muscular sheath; (G) cardia; (H) vulval region, vulval papillae and pars refringens; (I) vulval papillae; (J, K) female genital branch; (L) ventromedian supplements series; (M) spicule; (N) lateral guiding piece; (O) rectum; (P) female tail. (Scale bars: A - I, M - O =10 μm; J - L= 20 μm; P = 100 μm).
Paroxydirus vulvalpapillatus n. sp. (A, B) Anterior region; (C) anterior end showing amphid; (D) expanded part of pharynx, DN; (E) S1N1, S1N2; (F) spiral muscular sheath; (G) cardia; (H) vulval region, vulval papillae and pars refringens; (I) vulval papillae; (J, K) female genital branch; (L) ventromedian supplements series; (M) spicule; (N) lateral guiding piece; (O) rectum; (P) female tail. (Scale bars: A - I, M - O =10 μm; J - L= 20 μm; P = 100 μm).

Fig. 9

Paraoxydirus vulvalpapillatus n. sp. (SEM). (A) Lip region in face view; (B) lip region in ventral view; (C) vulva in ventral view; (D) vulval papillae in ventral view; (E) male posterior ventral view, showing adclocal pair, caudal pores and cloacal opening; (F) female anal opening in ventral view. (Scale bars: A, C = 5 μm; B = 1 μm; D– F = 10 μm).
Paraoxydirus vulvalpapillatus n. sp. (SEM). (A) Lip region in face view; (B) lip region in ventral view; (C) vulva in ventral view; (D) vulval papillae in ventral view; (E) male posterior ventral view, showing adclocal pair, caudal pores and cloacal opening; (F) female anal opening in ventral view. (Scale bars: A, C = 5 μm; B = 1 μm; D– F = 10 μm).

Measurements of Paraoxydirus vulvalpapillatus n_ sp_ (All the measurements in μm except L in mm)_

Locality Type population Karnataka population
CharactersHolotype femaleParatype femalesParatype malesFemale
n1581
L4.84.6± 0.3 (4.3 – 4.9)4.4±0.5 (3.8 – 5.0) (n=3)4.6
Body width at neck base4042±1.3 (41 – 44)42.1±2.4 (38 – 45)47
Body width at mid body5351.6±2.6 (47 – 55)48.6±4.7 (41 – 56)65
Body width at anus/ cloaca3128.6±2.4 (25 – 32)36±2.2 (32 – 39)32
a9288.9±4.9 (83.2 – 95.2)84.4± 10.7 (69.3 – 92.7) (n=3)71.6
b14.314.1± 0.6 (13 – 15)14.1± 0.8 (13 – 15) (n=3)13.2
c1513.9±0.3 (13.5 – 14.3)14.2±5.0 (8.1 – 20.3) (n=3)14.9
c’10.511.2± 1.2 (9.7 – 12.6)9.8± 3.6 (6.8 – 14.8) (n=3)9.8
V36.337.8± 1.6 (35.6 – 39.5)-41.6
G110.29.2± 1.9 (6.6 – 13.3)-6.9
G210.511.2± 0.7 (10.2 – 11.7)-7.6
Lip region width1010.6±0.5 (10 – 11)10.3±0.5 (10 – 11)10
Lip region height44.2±0.7 (3 – 5)4.5±0.5 (4 – 5)3
Amphid aperture width55.0±0.6 (4 – 6 )6.3±0.7 (5 – 7)5
Odontostyle length55.2±0.4 (5 – 6)4.8±0.3 (4 – 5)5
Odontophore length1111.5±0.7 (11 – 13)12±0.7 (11 – 13)11
Guiding ring from ant. End55.2±0.4 (5 – 6)5.3±0.5 (5 – 6)4
Nerve ring from ant. End143149.4±2.9 (145 – 153)145.1±6.1 (135 – 155)142
Neck length340331.8±11.6 (317 – 352)322.8±14.9 (297 – 339)352
Expanded part of pharynx9093±10.4 (82 – 107)86.3±10.6 (76 – 107)138
Cardia length1315.6±2.2 (12 – 19)13.1±2.5 (11 – 19)15
Anterior genital branch499469.2±102.6 (288 – 575)-320
Posterior genital branch512514±33.2 (492 – 580)-356
Vaginal depth3030.2±0.7 (29 – 31)-34
Vulva from ant. end17701703±115.8 (1550 – 1896)-1934
Prerectum length455373.7±42.5 (315 – 435)486.7±61 (432 – 602)290
Rectum length3736.6±2.7 (32 – 40)46.7±2.6 (42 – 50)43
Tail length325broken L = 310 – 365341± 97(247 – 475) (n=3) (broken L= 185 – 279)312
Spicule length--51±2.5 (46 – 54)-
Lateral guiding pieces--12.5±1.6 (11 – 16)-
Ventromedian supplements--11 – 14-

Measurements of Paraoxydirus novus Jairajpuri, 1965 (All the measurements in μm except L in mm)_

LocalityTamil Nadu populationKarnataka populationGoa populationAssam population
CharactersFemalesFemalesFemalesFemales
n6455
L3.9± 0.1 (3.7 - 4.0) (n=3)3.4 ± 0.1 (3.3 - 3.5)3.3±0.1 (3.2 - 3.5) (n=3)3.2± 0.1 (3.1 - 3.4) (n=3)
Body width at neck base52.6±3.8 (50 - 61)46.5±1.7 (44 - 48)49.4±3.8 (43 - 54)49.4± 4.3 (42 - 55)
Body width at mid body61.1±3.8 (57 - 69)57.7 ±3.4 (52 - 61)59.8±5.9 (49 - 67)55.4± 4.4 (50 - 62)
Body width at anus/ cloaca32.5±1.6 (31 - 36)31.7 ±1.1 (30 - 33)31.2±1.5 (30 - 33)29± 1.4 (27 - 31)
a61.7± 3.9 (56.7 - 66.2) (n=3)59 ±4.0 (55.6 - 65.8)55.3 ± 2.3 (52.4 - 58) (n=3)58.7 ± 5.3 (53 - 68.2) (n=3)
b11.7± 0.4 (11 - 12.2) (n=3)10.6±0.2 (10.2 - 10.8)10±0.4 (9.7 - 10.6) (n=3)10.6 ± 0.5 (9.9 - 11.2) (n=3)
c5.3± 0.2 (5.1 - 5.4) (n=3)7.3±1.1 (6.3 - 9.1)4.8±0.3 (4.5 - 5.2) (n=3)4.6 ± 0.5 (4.0 - 5.4) (n=3)
c'22.1± 1.9 (20 - 24.7) (n=3)14.8 ±2.4 (11.2 - 17.1)22.3±1.5 (20.3 - 23.7) (n=3)24.3±3.2 (20.5 - 28.7) (n=3)
V34.6± 1.1 (33.4 - 36.1) (n=3)33.7 ±2.3 (29.7-35.3)34.9±0.8 (33.8 - 35.8) (n=3)33.8 ± 0.3 (33.4 - 34.2) (n=3)
G110.3, 9.710.4±0.6 (9.6 - 11.2)11.2± 0.2 (11 - 11.4) (n=3)9.1± 0.3 (8.9 - 9.5) (n=3)
G210.2 ± 0.4 (9.8 - 10.7)11.1 ±1.2 (9.8 - 13.0)11.4± 0.6 (10.5 - 12) (n=3)9.3 ± 0.1 (9.2 - 9.5) (n=3)
Lip region width12.3±0.5 (12 - 13)11.2 ±0.4 (11 - 12)1110.4± 0.5 (10 - 11)
Lip region height54.5±0.5 (4 - 5)4.6±0.5 (4 - 5)4.7 ± 0.4 (4 - 5)
Amphid aperture width6.6±0.4 (6 - 7)55.2 ±0.4 (5 - 6)6
Odontostyle length77.3±0.4 (7 - 8)76.8 ±0.2 (6 - 7)
Odontophore length17±0.5 (16 - 18)17.5±0.5 (17 - 18)16.5±1.1 (15 - 18)15± 1.9 (12 - 17)
Guiding ring from ant. End8.5±0.8 (8 - 10)88±0.9 (7 - 9)7.2± 1.0 (6 - 9)
Nerve ring from ant. End146.1±3.3 (142 - 151)137.7 ±2.3 (135 - 140)141±1.4 (140 - 144)126± 5.7 (115 - 130)
Neck length328±16.6 (303 - 348)318.5±2.9 (314 - 321)331.6± 14.1 (319 - 358)304.8± 6.2 (294 - 311)
Expanded part of pharynx104.3±9.1 (86 - 114)110±6.1 (105 - 120)113±12.1(101 - 135)114.8± 8.8 (105 - 130)
Cardia length15.3±1.5 (14 - 18)16.7 ±0.8 (16 - 18)13.6±1.9 (11 - 16)15.8± 1.0 (15 - 17)
Anterior genital branch367.2±27.2 (341 - 418)354.2±24.3 (330 - 381)375±21.4 (341 - 396)298± 12.1 (274 - 306)
Posterior genital branch374.8±37.6 (314 - 434)378.2±42.7 (336 - 442)375±20.4 (345 - 406)308.4± 13 (284 - 318)
Vaginal depth36.3±1.5 (34 - 38)34.5±0.5 (34 - 35)34.4±0.5 (34 - 35)31.7 ± 1.3 (30 - 33)
Vulva from ant. end1296.8± 84 (1161 - 1413)1144.4±76 (1019 - 1226)1197.4±115.6 (1063 - 1382)1095± 62.9 (1024 - 1167)
Prerectum length442.6±24.1 (408 - 475)420.7±34.4 (396 - 480)385.6±61.4 (283 - 448)384± 56.1 (298 - 435)
Rectum length40.6±1.6 (38 - 43)43.2 ±1.9 (41 - 46)43±2.4 (40 - 45)40.2± 3.2 (35 - 45)
Tail length736± 40.9 (695 - 792) (n=3)469.7±66.2 (370 - 550)694±62.5 (610 - 760) (n=3)750.6± 44.1 (697 - 805) (n=3)
broken L= (230 - 623)(broken L)broken L = (495,560)broken L =620,635

Measurements of Paraoxydirus indicus n_ sp_ (All the measurements in μm except L in mm)_

Locality Type population Kerala population
CharactersHolotype femaleParatype femalesParatype malesFemale
n 391
L4.04.0 ± 0.4 (3.6 – 4.6)3.8 ± 0.1 (3.7 – 4.0) (n = 4)4.8
Body width at neck base4850 ± 2.2 (48 – 53)47 ± 2.4 (44 – 51)60
Body width at mid body5658 ± 2.4 (55 – 61)49.1 ± 3.7 (44 – 55)67
Body width at anus/ cloaca3031 ± 1.4 (30 – 33)33.8 ± 1.8 (31 – 36)32
a72.870.4 ± 4.5 (66.1 – 76.6)78.7 ± 4.2 (72.8 – 82.2) (n = 4)71.5
b12.211.2 ± 0.7 (10.4 – 12.2)11.5 ± 0.6 (11 – 12.5) (n = 4)13.2
c5.46.3 ± 0.4 (5.85 – 6.6)5.4 ± 0.2 (5.2 – 5.7) (n = 4)5.4
c’24.920.7 ± 0.5 (20 – 21.3)21.2 ± 1.5 (19.4 – 23.3) (n = 4)27.9
V32.132.8 ± 1.1 (31.2 – 33.6)-30.6
G110.510.1 ± 0.4 (9.7 – 10.7)-9.3
G212.712.1 ± 1.4 (11 – 14)-11.3
Lip region width1313.6 ± 0.5 (13 – 14)12.8 ± 0.6 (12 – 14)12
Lip region height55 ± 0.8 (4 – 6)5.4 ± 0.5 (5 – 6)5
Amphid aperture88.3 ± 0.5 (8 – 9)7.6 ± 0.8 (7 – 9)
Odontostyle length77.5 ± 0.4 (7 – 8)7.4 ± 0.4 (7 – 8)7
Odontophore length1717.6 ± 0.5 (17 – 18)17.3 ± 1.0 (16 – 19)17
Guiding ring from ant. End99.3 ± 0.5 (9 – 10)8.3 ± 0.5 (8 – 9)8
Nerve ring from ant. End153149.3 ± 6.0 (141 – 155)146.5 ± 2.1 (142 – 149)153
Neck length334361.6 ± 14.3 (347 – 381)344.7 ± 15.4 (314 – 366)362
Expanded part of pharynx107122.6 ± 6.6 (114 – 130)114.3 ± 10.3 (102 – 129)146
Cardia length2524 ± 2.2 (21 – 26)22 ± 2.4 (17 – 25)25
Anterior genital branch429415 ± 27.7 (388 – 453)-445
Posterior genital branch519503 ± 114.2 (404 – 663)-542
Vaginal depth3431.6 ± 1.2 (30 – 33)-35
Vulva from ant. End13101339 ± 100 (1217 – 1463)-1464
Prerectum length519545.3 ± 41.9 (500 – 601)532.5 ± 79.8 (412 – 660)597
Rectum length4141.6 ± 0.5 (41 – 42)46.7 ± 2.8 (44 – 52)41
Tail length748642 ± 44.3 (602 – 704) (broken L)704 ± 26.9 (671 – 746) (n = 4) broken L (565 – 680)894
Spicule length--49.5 ± 2.2 (45 – 53)-
Lateral guiding pieces--13.7 ± 1.5 (12 – 16)-
Ventromedian supplements--12 – 15-

Compendium of morphometrics of species belonging to the genus Paraoxydirus Jairajpuri & Ahmad, 1978 (Measurements in μm except L in mm)

Character speciesnLabcc'vLrdOdont.NeckPh.exp.AbdPrerect.Tail lengthVmsSpicule lengthGeo. Dist.References
abnormus4♀♀5.0-6.0102-12413-188-1118-2035-39128342-416118-14631-34279-331596-668--Karnataka- IndiaDhanam & Jairajpuri, 1998
3♂♂5.0-6.0111-13014-1612-16---8350-365113-12936-37566-681354-46512-1548-53
cavenessi5♀♀1.9-4.059-786.5-11.75-1013-2135-44105-7252-35095-14019.4-28175-311252-588--NigeriaFerris et al., 1980
3♂♂2.0-2.563-666.4-9.05-8----280-315100-144--336-4487-836-37
gigas2♀♀3.8-4.565-6612-1310-40-4211*5*-------Nainital- IndiaJairajpuri, 1964
2333.7-4.361-8612-1311-1213-11*5*--30*300*390*1550
1♂3.7881314---6-- --1549M.P.- IndiaSiddiqi, 1966
1♀3.970139-39-5-7-------UP-IndiaBaqri & Jairajpuri, 1968
2333.6-3.784-8612.0-12.210-15---------1348-51
25♀♀3.7-4.372-8311.2-12.911-1714*42-4512*6-7320-350140*28-34260-360250-345--Several localities-IndiaJairajpuri & Ahmad, 1978
10♀♀3.7-4.066-7911.5-12.910-1613*--6-7290-305 33-35-220-35011-1350-55
8♀♀4.1-4.677-8513-157-818-2135-4210-115-6304-32693-10828-31260-303425-604--Goa- IndiaPresent paper
5♀♀3.8-4.580-8811-148-1012-14-10-115309-34288-10433-36370-457440-48010-1452-54
4♀3.3-4.564.4-7311-13.79-1110.7-15.436.3-40.4105-6302-34185-11828-32220-319300-478+--Assam-IndiaPresent paper
1♂3.571.310.710.610.3-10632511332280330+1257
magnus6♀♀4.8-5.785-11713-1712-1512.533-40108334-36784-11832.8230389-400--BangladeshTimm, 1964
6♂♂4.4-4.987-10314-15.417- 20---------12-1654-57
novus2♀♀3.9-4.065-6811-124-62034-3510**7--33*17abd615*--Andaman- IndiaJairajpuri, 1965
5♀♀3.1-3.453-6810-114.0-5.421-2933-3410-116-7294-311105-13027-31298-435697-805--Assam-IndiaPresent paper
5♀♀3.2-3.552-5810-114.5-5.020-2434-36117319-358101-13530-33283-448610-760--Goa-IndiaPresent paper
6♀♀3.7-4.057-6611 -125.1-5.420-2533-3612-137303-34886-11431-36408-475695-792--Tamil NaduPresent paper
4♀♀3.3-3.555-6610-116.3-9.011-1730-3511-127-8314-321105-12030-33396-480370-550+--Karnataka-IndiaPresent paper
pelinus3♀♀5.2-5.4102-14017-209-112029-3497266-31190-9626112-256496-592--PhilipinesFerris et al., 1980
2♂♂4.8-4.8589-12715.0-15.412-17----31196--281-38311-1350-55
indicus sp.n.4♀♀3.6-4.666-7610.5-12.35.4-6.621-2531-3313-147-8334-381107-13030-33500-601748 (602-704+)--Tamil Nadu-IndiaPresent paper
9♂♂3.7-4.073-8211.0-12.55.2-5.719-23-12-147-8314-366102-12931-36412-600671-74612-1545-53
1♀4.871.513.25.42830.612736214632597894--Karnataka-IndiaPresent paper
vulvalpapillatus sp.n.6♀♀4.3-4.883-9513-1513-1410-1336-3910-115-6317-35282-10725-32315-435325 (310-365+)--Goa-IndiaPresent paper
8♂♂3.8-5.069-9313.0-15.28-207-15-10-114-5297-33976-10732-39432-602247-47511-1446-54
1♀4.657213159.84210535213831290312--Karnataka-IndiaPresent paper

Measurements of Paraoxydirus gigas Jairajpuri, 1964 (All the measurements in μm except L in mm)_

LocalityGoa populationAssam populationNainital (type population)Bijnore population (After Baqri & Jairajpuri, 1968)others
CharactersFemalesMalesFemalesMaleFemalesMalesFemaleMalesFemalesMales
n854122122510
L4.3 ± 0.2 (4.1 - 4.6)4.2 ± 0.3 (3.8 - 4.5)3.9 ± 0.4 (3.3 - 4.5)3.53.8 - 4.53.7 - 4.33.893.6, 3.73.7 - 4.33.7 - 4.0
Body width at neck base44.2 ± 2.2 (42 - 49)42.2 ± 1.0 (42 - 45)46.2 ± 3.3 (42 - 51)4050* --50*-
Body width at mid body54.4 ± 2.7 (50 - 59)50.6 ± 2.3 (48 - 54)57.2 ± 4.8 (52 - 62)49 ----
Body width at anus/ cloaca30 ± 1.1 (28 - 31)34.7 ± 1.1 (33 - 36)30.7 ± 1.6 (28 - 32)32 30*--28 - 3433 - 35
a81.4 ± 3.2 (77 - 85.3)83 ± 2.7 (80.5 - 87.7)69.2 ± 3.4 (64.4 - 73)71.365 - 6661 - 867084, 8672 - 8366 - 79
b14 ± 0.5 (13.5 - 14.7)13.1 ± 1.0 (11.3 - 14.1)12.3 ± 0.9 (11.1 - 13.7)10.712 - 1312 - 1312.812, 12.211 - 1311.5 - 13
c7.6 ± 0.3 (7.2 - 8.2)9.2 ± 0.8 (8.2 - 10.3)9.8 ± 0.8 (9.1 - 11.2)10.61011 - 12910, 1511 - 1710 - 16
c'19.2 ± 0.8 (18.2 - 20.6)13.2 ± 0.7 (12.2 - 13.9)13.2 ± 1.7 (10.7 - 15.4)10.31312--14*13.5*
V38.7 ± 2.4 (34.8 - 42.1)-37.8 ± 1.5 (36.3 - 40.4)-40 - 42-39-42 - 45-
G18.2 ± 1.0 (6.7 - 9.3)-11.3 ± 1.2 (9.8 - 13)-----9 - 15-
G28.3 ± 0.8 (7.4 - 9.6)-12.5 ± 1.3 (10.6 - 14)-----9 - 18-
Lip region width10.2 ± 0.4 (10 - 11)10.4 ± 0.5 (10 - 11)1010-11*--11*-
Lip region height4.5 ± 0.5 (4 - 5)4.2 ± 0.4 (4 - 5)45-5*--4*
Amphid aperture width6.5 ± 0.5 (6 - 7)6.5 ± 0.5 (6 - 7)6.2 ± 0.4 (6 - 7)7-6*----
Odontostyle length5.1 ± 0.3 (5 - 6)55.3 ± 0.5 (5 - 6)6-5*-5, 76 - 76 - 7
Odontophore length12.2 ± 0.6 (11 - 13)1310.6 ± 0.9 (10 - 12)11-10*-8, 1010 - 1212 - 13
Guiding ring from ant. End555.3 ± 0.5 (5 - 6)6----6*-
Nerve ring from ant. End145.5 ± 7.1 (137 - 157)148.2 ± 5.3 (141 - 157)144.2 ± 1.9 (142 - 147)140----130*
Neck length314.7 ± 7.2 (304 - 326)321.8 ± 11.2 (309 - 342)321.2 ± 15.5 (302 - 341)325----320 - 350290 - 305
Expanded part of pharynx101 ± 4.2 (93 - 108)94.4 ± 5.8 (88 - 104)101.5 ± 13.5 (85 - 118)113----130*-
Cardia length14.3 ± 1.6 (12 - 17)16.2 ± 0.8 (15 - 17)17.2 ± 3.3 (13 - 21)17-14*--20*-
Anterior genital branch364.3 ± 38 (305 - 405)-447.2 ± 60.6 (398 - 547)-------
Posterior genital branch372.4 ± 31.6 (320 - 410)-495.2 ± 66 (405 - 590)-------
Vaginal depth29.4 ± 2.3 (27 - 34)-31, 32-----38*-
Vulva from ant. end1708 ± 94 (1519 - 1795)-1504.3 ± 199 (1242 - 1698)-------
Prerectum length277.1 ± 34.4 (260 - 303)418 ± 29.3 (370 - 457)271 ± 35.1 (220 - 319)280----260 - 360-
Rectum length34.5 ± 3.1 (30 - 39)51.5 ± 2.7 (48 - 55)37, 4150-50*--29 - 36-
Tail length577.5 ± 13.3 (565 - 604)454.6 ± 14.6 (440 - 480)407.5 ± 65.9 (300 - 478) ----250 - 345220 - 350
(broken)broken
Spicule length-52.7 ± 0.8 (52 - 54)-57-50-48, 51-50 - 55
Lateral guiding pieces-11.2 ± 1.5 (9 - 13)-12-----10 - 11
Ventromedian supplements-10 - 14-11-15-13-11 - 13
DOI: https://doi.org/10.2478/helm-2021-0028 | Journal eISSN: 1336-9083 | Journal ISSN: 0440-6605
Language: English
Page range: 292 - 314
Submitted on: Oct 13, 2020
|
Accepted on: Feb 15, 2021
|
Published on: Sep 30, 2021
In partnership with: Paradigm Publishing Services
Publication frequency: Volume open

© 2021 S. Kumar, W. Ahmad, published by Slovak Academy of Sciences, Institute of Parasitology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.