New Species Of Tubixaba And Enchodelus (Nematoda: Dorylaimida) From Romania Author Popovici, Iuliana BAQRI,Q.H.&JAIRAJPURIM,.S.(1974).NematodesofhighaltitudesinIndia.V.FivenewspeciesofthegenusEnchodelusThorne,1939(Dorylaimida).Nematologica20,131-146. text Nematologica 1995 1995-01-01 41 435 448 journal article 57879 10.1163/003925995X00396 1f9513e2-ab59-4a2c-a5ff-adc973a61423 8125586 Enchodelus ponorensis sp. n. ( Fig. 3 A-D; measurements in Table II). Female (n = 31): Body curved ventrad into open C-shape upon fixation. Cuticle 2.5-4.5 J.1mthick at midbody, 5-9 pm on dorsal side of tail and 7.5-12.5 pm on tail tip. The inner layer with very fine transverse striae. Lateral chord one-fourth of body diameter. Lips rounded, distinctly set off by a constriction ( Fig. 3A, B ). Amphids stirrup-shaped, half the lip region width. Odontostyle long and narrow, 1.6 width oflip region, its aperture occupying one-sixth of its length. Odontophore 1.6 length odontostyle, with small swellings at its base, maximum flange width 4-5 J. 1m . Guiding ring "double", its fixed ring one head width from the anterior body end ( Fig. 3B ). The nerve ring surrounds the oesophagus at 35-46% of its length from anterior end. The oesophagus begins to widen at 53-63% of its length from anterior end. Cardia conoid-rounded, 12- 19 J.1mlong. Locations of oesophageal gland nuclei as follows (n = 18): DO = 60.3 (55.7-63); DN = 63.7 (59.5-66.7); DO-DN = 15 (11 -18 gm); SIN= 75 (72-76.8); S2N = 85.8 (82.8-89.7); S20 = 87.2 (84.5-91.3). Reproductive system didelphic; gonads opposed, reflexed, oocytes in a single row. A weakly developed sphincter separates oviduct and uterus ( Fig. 3D ). No sperm, no eggs in the uteri. Vulva a transverse, pre-equatorial slit. Vagina with sclerotized walls, extends to half of the corresponding body width. Slightly sclerotized heart-shaped pieces at vulva-vagina junction. TABLE II Morphometric data of Enchodelus ponorensis sp. n .
HOIOÎYPC Paratypes
n - f) ñ ll _ JU
L L. ((mm)) 1. 1.32 U 5 l. 1.31 ö l (Las-zon
2 34- 33.6 30 392
b D ‘ 4.6 lab ‘L 4.3 6 (376.8)
c 51.3 46 (4o. õ- 5 õ. 5)
I l‘ _ I I. 1 n’! / n n ı fn I HI lll H-I ^\\ - .. U U .. - ... H
v % 46.5 47.6 (444-512)
Gfi/o 11.8 ìíìì (6.7- i 5.5)
G % 2 11.6 11.8 (9.3 - 17.6)
Lip region width Ošiontßstyle 15 2 s 15 (15 - 16) 24 (22 -25)
Odontophorc 35 35 (32.5- 37.5)
1 0 Total K3! spear 6 DU G DE 59! (55-625)
Maximum flange width 5 4.8 (4-5)
Guiding ring from anterior end 15 15.4 (141 -.5- 17)
Ámphid aperture 7.5 8 (7.5- iû)*
Nerve ring from anterior end 150 165 (140-2171**
Qesophagiis expands 152.5 164 (150-245)
Body width at midbody 54- 54 (50-605)
1 Tzu all iength length se 50 29.2 33.25 (25-45)
Anal body diameter 36 37.4 (35 -42)
Prerectum length 153 165 (107 - 281)
Prercctum/ anal body diameter 4.2 4.4 (3.2 - 7.5)
Rectum length 37.5 39 ($25-50)
Cuticle thickness at:
midbody 3 3.3 (2. f›-4.s)
on tail base 4.5 5 (35-6)
On tail tip 12 11.2 (25 - 125)
Tail bluntly conoid, 0.9-1.3 anal body widths long ( Fig. 3C ), with a pair of pores on each side. Rectum 1-1.3 and prerectum 3.2-7.5 anal body widths long. Juvenile (third stage) (n = 2): L = 1.39-1.47 mm ; a = 29.2-33.7; b = 4-4.2; c = 33.1-39.3; c' = 1.2-1.3; odontostyle = 17.5-19 pm; odontophore = 26-30 total stylet = 45-47.5 J. 1m ; replacement odontostyle = 24.5 gum. Female (into fourth-stage cuticle) (n = 1): L = 1.59 mm ; a = 29; b = 4; c = 41.2; c' = 1.03; V = 48.3%; odontostyle = 23.7 gm; odontophore = 33.7 gm; total spear = 57.5 replaced odontostyle = 20 pm. Male not found.
Differential diagnosis : Enchodelus ponorensis sp. n. is close to E . parateres Baqri & Jairajpuri, 1974 by the lip region set off, odontostyle over one head-width long, odontophore with weak basal flanges, and tail bluntly conoid, without saccate bodies. It differs from E . parateres by its longer body ( 1.69-2.07 mm vs 1.13-1.34 mm ), longer odontostyle and odontophore (22.5-25 pm vs 20-23 Am, respectively 32-5-37.5 gum vs 22-28 pm), by lack of oesophageal-intestinal disc, by position of vulva, mostly pre-equatorial (44-51% vs 51 -53%), longer prerectum (3.2-7.5 vs 3.6-3.9), by shape of tail and lack of males. Type habitat and locality : All type specimens collected in September, 1975 ; August, 1988 ; and July, 1991 from an alluvial typic vermic soil of a montane grassland , at 1000 m altitude, in the Poiana Ponor , Padis karstic region of the Bihor Mountains (Western Carpathians), Romania . Type specimens : Holotype and three paratypes on slides no. 49995 and 49996 deposited in the Collection of the Natural Historical Museum " Gr. Antipa ", Bucharest, Romania. Three paratypes deposited in the Nematology Department , Agricultural University Wageningen, the Netherlands; one female in CNCN Ottawa, Canada; other paratypes deposited in the Department of Ecology, Biological Research Institute, Cluj-Napoca, Romania. Fig. 3. Enchodelusponorensissp . n. A, Anterior part of body; B, Lateral view of head; C , Posterior end (female);D, Vulva, vaginal region and anterior genital branch. The species name comes from the type locality name, the Ponor glade.