Nematodes Of High Altitudes In India V. Five New Species Of The Genus Enchodelus Thorne, 1939 (Dorylaimida) Author Baqri, Qaiser H. Author Jairajpuri, M. Shamim text Nematologica 1974 1974-01-01 20 2 131 146 journal article 10.1163/187529274X00113 8117953 ENCHODELUS MAXIMUS N. SP. ( Fig. 3 ) Measurements : See Table I . Description : Female : Body tapering slightly in neck region, posterior half curving ventrally on fixation. Cuticle finely striated, its thickness 20-23>m on tail tip. Lateral chords about 1 /4th of body-width near midbody. Dorsal, ventral and lateral body pores indistinct. Lip region set off from body, about 1 /4th body-width at base of oesophagus. Amphids cup-shaped, irregularly curved slit-like apertures occupying about 3/4th of corresponding body-width. Odontostyle 3.5-3.6 head-widths long; its aperture about 1 /20th of odontostyle length. Guiding ring about 2.3 head-widths from anterior end. Odontophore about equal to odontostyle length. Basal expanded portion of oesophagus about 37 % of neck length. The location of the dorsal oesophageal gland nucleus and first pair of subventral oesophageal gland nuclei and their orifices given in Table II. The second pair of subventral oesophageal gland nuclei and their orifice not visible. Nerve ring surrounding anterior slender part of oesophagus at 42-43 % of neck length from anterior end. Cardia rounded, surrounded by intestinal tissues. Prerectum 5.0-5.6, and rectum about one anal body-width(s) long. Vulva a transverse slit. Vagina extending about 2/5 of width across the body, encircled at proximal end by cuticularization and at distal end by sphincter. Gonads amphidelphic. Uterus divided into a proximal glandular and a distal muscular part. Oviduct and uterus distinctly separated by sphincter. Spindle-shaped sperms present in uterus and oviduct. Ovaries reflexed; oocytes arranged first in single, then in double rows. Tail 1.8-1.9 anal body-widths long, conoid, ventrally curved, with 2 caudal pores on each side, terminus rounded. Male : Not found. Type habitat and locality : Same as E . thornei . Type specimens : Holotype mounted on slide H. A .5 lEnchodelus maximusll , paratype on slide H.A.5 lEnchodelus maximus /2. Fig. 3. Enchodelusmaximus n. sp. A. Female entire, B. Head end, C. Head end showing amphid, D. Expanded region of oesophagus, E. Posterior female sexual branch, F. Vulva region, G. Female tail end. TABLE I Measurements offive
Enchodelus thornei n. sp. Enchodelus satendri n. sp
Measurements i Rohtang Pass Population (Type) Holotype Paratypes ♀ ♀♀ (10) Nagar Vashisht Population (Type) Population (Type) iHolotype Paratype Paratypes c? (1) | ♀ ♀♀ (5) ♀♀(6)
b (mm) 1.62 1.28 - 1.67 1.43 1.62 1.53 - 1.88 1.38 - 1.57
L c 33 30- 37 51 29 27-29 25-30
a cn \ f A011 gn-yx EA 5.5 l » 5.2-6.3 5.0 - 6.0
29 23 -29 28 36 26- 35 24- 32
V 01' T V G 1 (%) i or G 2 (%) T Cuticle thickness midbody (μm) i Cuticle thickness tail (μm) | Lip region width (μm) i Lip region height (μm) i Amphid width (μm) i Sensillar pouches from amphid aperturei () Odontostyle length (μm) i Odontophore length (μm) i Guiding ring from anterior end (pm) | 50 10.7 10.7 'i L 4 12,â 'T 6 21 17 28 11 48 - 54 10- 12 8 - 12 'î L 3 -4 11 - 12 A “ f 6 - 7 19 - 21 17 - 18 25 -28 10- 11 53 52 -— 1 '1 l I 1 n — ı 1 ı 'T 3 J L 4 5 12 13 <4 J 7 9 19 72 16 25 24 34 10 17 49 - 53 I 0 '1 l IO-Ll 1 n à ‹ ı x- 1 ı 2 L-J - 3 §-6 13 - 15 4- 6 7- 9 21 -24 25-29 34 - 40 16- 18 66- 71 m' 2- 3 f 13 5 - 6 8 - 9 20- 23 25-27 34- 36 17- 18
Oesophagus total length (pm) i Oesophagus expanded part (μm) i Nerve ring from anterior end (μm) i Length of vagina (μm) i Prerectum length (μm) i Prerectum/ anal body-width i 311 122 12 s LL 112 4.0 259 - 325 105- 122 112 - 130 1 70- 129 2.8 - 4.8 202 292 93 108 123 136 L 24 4 135 121 4.8 5.0 272- 300 97- 108 134- 148 27 67 -94 2.1 -3.1) 270 - 292 96 - 106 138 - 144 127 - 141 á. / -4._ '›
Rectum length (μm) 30 25 -28 _ 34 31 - 34 -—
Tail length (μm) sv 50 -60 52 45 49 - 61 49- 59
Tail /anal body-width 2.0 2.0 - 2.4 « z 1.9 | ¬ . z ‹ n | h_ \ ı ‹ ‹ z ~. ln-ııs
Spicules length (μm) _ _ 42 — _ 45 - 48
Lateral guiding pieces (μm) — - —- 7 ~ _ 9 - 11
No. of copulatory muscles _ _
N 0. of ventromedian Supplements _ _ ó _ _ 4- 6
* . ecies of the genus Enchodelus U \
satendri Enchodelus maximus Enchodelus parateres n. sp. Enchodelus microdoroides n. sp.
n. sp. n. sp.
Rohtang Pass Bharmar Population (Type) Upper Bakrota
'opulatíon Population
(Type) ♀♀ (4) i Holotype ♀Z i Paratype ♀ Holotype 'T' Paratypes ♀♀ (101 T 1' \ ‘ I Paratypes ♂ m ‘ / Holotype ♀ Paratype ♀ ♀ (1)
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Differential diagnosis : Enchodelus maximus n. sp. comes closest to E . nepalensis Zullini, 1973 , but differs in having a longer and slenderer body (L = 2.1 -2.3 mm and a = 23-30 in females of E . nepalensis ), shorter odontostyle (odontostyle 66-70 p ,m in E . nepalensis ), and in having differently shaped amphids.