A REVIEW OF THE GENUS ENCHODELUS THORNE, 1939 WITH DESCRIPTIONS - OF SPECIES FROM INDIA Author MAQSOOD AHMAD Section of Nematology, Department of Zoology, Aligarh Muslim University, Aligarh, India Author M. SHAMIM JAIRAJPURI Section of Nematology, Department of Zoology, Aligarh Muslim University, Aligarh, India text Records of the Zoological Survey of India 1980 1980-01-01 15 1 42 journal article 10.5281/zenodo.8145041 a130b034-7d5d-420a-95cb-b366326a0f34 8145041 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. Fig. 1. - Enchodelus { Enchodelus ) macrodorus (A) Entire female (B) Head end, (C) Head end sQowing amphid, (D) Expanded part of oesophagus. (E) Anterior female sexual branch, (F) Female tail end. 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. TABLE l Dimensions of Enchodelus (Enchodelus) microdordldes Baqri &] aira¡puri, 1974

Populations	L mm	a	b	c	V/T	G,	G,	Cut. at m. b. (um)	Cut. at tail (um)	Amphid width Rum)	Pre- rectum (um)	Rectum (μm)	Odonto- style (um)
Tota! Mean Entire range 44 Entire range 2	<2 2 3‘,ø	I. IO 094-1 26 124- 128	'YI LJ IQ 'YT II-Lı n; ¬¬ LO-A /	4.6 3.5 - 5. 6 ‘ 4.6 hb--‘4.8 l-U	60 47-73 52- DL-DQ54	49 43 -55 60 DU	20 15-25 -	20 16 -22 --	4 3 -5 3 J	7.5 5- l 0 5- Deb6	8 6- I 0 6-9	85 48- l 22 60-80	28 23 -33 26-36	40 37 -42 38-40
(l) Mean Range 32 g p	|.06 no 4 l la \I-I I'I. I \ J	22 IQ ')C ı /- LJ	4.5 4-5	60 48-73	49 44-55	19 15-23	19 16 -23	3.5 3-4	8 6- i 0	8.5 7- 1 0	79 58- 100	27 27-3 i	40 37-42
(li) Mean Rgnge-'l 2 2	1.04 0.984125	20=27	¿L 4.2l nl. 3.5-5.0	\ 52I.la 47 - 58	BI 47 l! 43 -52	20 III av 15-25	Zi II μ \ ıe-24	1 3.5H 4. -! 3 -4	ı 7 I ó-s	7 I ı ó-e	fn r [NV ï v;. J 57-82	28 Lv IK 27-29	40 39-41
(iii) Mean Range 4 2 g I a	1.16 1.10- 1.23 1.28	2.2 20-24 27	‘L 4.5 3 4-5 4.8 Í-U	63 bj 60-65 JL	50 DU 48 - 5 I UV	18 IU 16-22	18 113 17- l 9	3.5 3.3 3-4 3 J	7 / 6-7 J 5	7 6-8_ á u	/ 73J 48-98 vv 60	L 27/ 25-30 Zé Lv	39 37-40 40
fix". l 2 i U	II "! l-II ı L 24	27 Z?	4.5 415 ‘ 416 lib	. 58 58 54 34	46 46 60 OU	i I 7 I --	¡ IB â -	3 J 3 J	6 ó 6 b	‘ 9i 9 7	86 Ub 80 OU	JL 32 36 JO	37.5 40
(V) Mean Range} g 9	I. 12 I' f\!\ ı ¬ ı muni u .. t I z .. -. z	'ìñ LV in a «: w ı ı ıı-LL	4.7 3.8-5.6	60 58 -63	49 48-50	22 19-24	2 l l 8-23	4 3-5	5.5 5-6	9 8- 10	9 3 65 - 122	3 | 29 - 33	41 40-42

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

Odontophore (,urn)	ABO (J.£m)	Taill ABO	Spi- cule (p.m)	No. of Copul. muscle	No. of v. m. supp.
47.5 45-50 45-46	27, S 25-30 26-30	0.65 o 5-0.8 0.7-0.8	45-50	30-32	10
46 45-48	27.5 27-30	0.65 0.5-0.8
48 46-49	28 25-30	0.75 0.7-0.8
47 46-48	25.5 25-26	0.74 0.71;.0.77
45	30	0.8	50.5	32	10
46 46	26 27	0.77 0.70	45	30	10
49 48-50	26.5 26-27	0.70 0.65 -0.78

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.