Enchodelus satendri, Baqri & Jairajpuri, 1974, 1974

Baqri, Qaiser H. & Jairajpuri, M. Shamim, 1974, Nematodes Of High Altitudes In India V. Five New Species Of The Genus Enchodelus Thorne, 1939 (Dorylaimida), Nematologica 20 (2), pp. 131-146 : 134

ENCHODELUS SATENDRI N. SP .

( Fig. 2 )

Measurements: See Table I .

Description:

Female: Body tapering gradually in neck region, becoming curved, more ventrally on fixation, more strongly so in posterior half. Cuticle with fine striations, its thickness 15-22 fLm on tail tip. Lateral chords 1/8th-1 /5th of body-width near midbody. Dorsal, ventral, and lateral body pores indistinct.

Lip region set off from body, 1 /4-2/7 body-width at base of oesophagus. Amphids cup-shaped, curved slit-like apertures occupying 2/5th-2/3rd of corresponding body-width. Odontostyle 1.9-2.1 head-widths long; its aperture 1 /12th-1 / 9th of odontostyle length. Guiding ring 1.2-1.4 head-widths from anterior end. Odontophore 1.3- 1.5 times the odontostyle length.

Basal expanded portion of oesophagus 34-37 % of neck length. The location of the oesophageal gland nuclei and their orifices are given in Table II. Nerve ring surrounding anterior slender part of oesophagus at 43-48 % of neck from anterior end. Cardia hemispheroid, surrounded by intestinal tissues. Oesophago-intestinal disc present. Prerectum 2.0-3.6, and rectum 1.0- 1.2 anal body-width(s) long.

Vulva a transverse slit. Vagina extending 2/5-1/ 2 across the body, encircled proximally by cuticularization. Gonads amphidelphic. Uterus divided into a proximal glandular and a distal muscular part. Oviduct and uterus distinctly separated by sphincter. Ovaries reflexed; oocytes arranged in single row except in growth region.

Tail 1.5- 1.9 anal body-widths long, conoid, terminus rounded, slightly ventrally curved in posterior 1 /3rd, with 2-3 caudal pores on each side.

Male: Supplements consist of an adanal pair and 4-6 ventromedians, the latter spaced nearly at regular intervals. Spicules 1.4- 1.6 anal body-widths along median axis. Lateral guiding pieces well developed. Copulatory muscle bands occupying the area up to slightly above the region of ventromedian supplements. Subventral papillae indistinct. Prerectum 3.7-4.3 anal body-widths long.

Type habitat and locality: Soil from the Sulphur springs, near Vashisht Temple , Vashisht , Manali (altitude approx. 6,000 ft.), district Kulu , H.P.

Specimens from Rohtang Pass were collected from soil around roots of unidentified grasses, district Kulu, H.P.

Type specimens: Holotype female along with one paratype male mounted on slide H.A.4 lEnchodelus satendrill; paratypes mounted on slides H. A.4 IEnchodelus satendri /2-4.

Specimens from Rohtang Pass mounted on slides H. A.5 lEnchodelus satendril 5-6.

Differential diagnosis: Enchodelus satendri * n. sp. comes close to E. constrictus Jairajpuri & Loof, 1968 and E. rhaeticus Altherr, 1952 . It differs from the former in having a differently shaped lip region and amphids, longer odontostyle (odontostyle 23-24?.m long in E. constrictus ), longer and flanged odontophore (odontophore 29-31 fLm long without flanges in E. constrictus ), differently shaped spicules and lateral guiding pieces, and ventromedian supplements arranged nearly at regular intervals and, from E. rhaeticus in differently shaped lip region and amphids, longer odontostyle (odontostyle 22 tkm in E. rhaeticus ), longer and flanged odontophore (odontophore 32 tkm long without flanges in E. rhaeticus ), and a more posteriorly situated vulva (V = 41 in E. rhaeticus ).

Figures

Fig. 2. Enchodelussatendri n. sp. A. Female entire, B. Head end, C & D. Head ends showing amphid, E. Expanded region of oesophagus, F. Posterior female sexual branch, G & H. Vulva region, I & J. Female tail ends, K & L. Male tail ends, M. Spicule.