Enchodelus (Enchodelus) macrodorus (De Man, 1880) Thorne, 1939

MAQSOOD AHMAD & M. SHAMIM JAIRAJPURI, 1980, A REVIEW OF THE GENUS ENCHODELUS THORNE, 1939 WITH DESCRIPTIONS - OF SPECIES FROM INDIA, Records of the Zoological Survey of India 15, pp. 1-42 : 16-20

1. Enchodelus (Enchodelus) macrodorus (De Man, 1880) Thorne, 1939

((Fig 15. 1 l, A-F)

I*

Dimensions

Females (15) L =`ı. 42-1.79 mm, 9 a = î'24 24- -32 32, 9 b=4.5-5.2, c =55-75; V V ___ ==4 40 U--45 43, 9 U G1 1 = î l 13ó- - l 16O, 9 U G2, ' =í 13 1 -18

Description

Female Body ventrally curved upon fixation. Cuticle finely striated, Bıım thick on body, 10- 12 μm on tail. Dorsal, ventral and lateral body not visible.

Lip region set ofl` from body by slight depression, 1 /4th as wide as body at base of oesophagus, about thrice as wide as high. Amphids cup-shaped with slit-like apertures occupying about two-thirds of lipwidth. Odontostyle 41 -42 um or 2.7-2.8 times of lip-width, its aperture about 1 / 19th of its length. Guiding ring 1.5 lip-widths from anterior end. The stomal wall anterior to guiding ring are much thickened. Odontophore 43-46 um, nearly equal to odontostyle length and provided with broad flanges at its base. Maximum width of flanges 7-8 um.

Basal expanded part of oesophagus occupying about 38% of neck length. Location of oesophageal gland nuclei and their orifices as given in Table III. Nerve ring surrounding the anterior slender part of oesophagus at about 40% of neck length from anterior end of body. Cardia hemispheroid, 9 1 11l - 14 um long, surrounded by intestinal tissues. — Rectum about one anal body-width long. Pre-rectum 4- 5 times as long as rectum.

Vulva a transverse slit, vagina about one half body-width deep with cuticularization around it. Gonads amphidelphic, opposed and reflexed. A well developed sphincter present between uterus and oviduct. Uterine eggs measuring 90-91 X 31 -39 um in size. In young females, in which the eggs are not formed, a sphincter is visible \JUL YY between DVI] the l-llv \J Y (ovary all J (and all-IQ oviduct.

Tails 0.6-0.7 anal body-width long, convex-conoid with well developed anal muscles and two caudal pores on each side.

Male Not found.

Habitat and locality Soil around roots of Pinus satívus from Tang Marg, Srinagar, Jammu & Kashmir.

Remarks De Man (1880) described this species as Dorylaimus macrodorus having a long odontostyle with small aperture, double guiding ring, odontophore with broad basal flanges. Thorne (1939) proposed a new genus Enchodelus for a number of species of Dorylaimus and Dorylaimellus with E. macrodorus as type species. Thorne (1. c.) stated that this species was cosmopoliton in distribution.

Iairajpuri & Loof (1968) recorded a single female of this species from soil around the roots of apple from Srinagar, Jammu & Kashmir.

Habitats and localities:

i

) Soil around roots of grasses from Municipal Gardens, Mussooríe. Uttar Pradesh.

ii) Soil around roots of Il/Iarchantia sp., from Tallital, Nainital, Uttar Pradesh.

iii) Soil around roots of Marchanria sp., from Tiphintop, Nainital, Uttar Pradeshi

iv) Soil around roots of Marcharıtia sp .. from jeolikot. Nainital, Uttar Pradesh.

v) Soil around roots of mosses from Pauri Road, Lansdowne. Garhwal, Uttar Pradeshl

The present specimens were also collected in Srinagar. They agree fairly well with the description of E. macrodorus as given by Thorne (1939) and Jairajpuri & Loof (1968). However, they differ from the specimen previously collected from Srinagar in having longer body (L=1.47 mm) and more posterior vulva (V= 37).

The values in parentheses are of single specimen of. E. macrodorus as given by Jairajpuri & Loof.