JANUARY, 1965] HELMINTHOLOGICAL SOCIETY 81 contain Aetholaimiis Williams, 1962 and Mylo- atoda : Dorylaimoidea) with description of ten discus Thome, 1939 which possess a com- new species from India. Proc. Helminthol. bination of iiygolaimoid and actinolaimoid Soc. Wash. 31: 173-187. characters. THORNE, G. 1939. A monograph of the nema- todes of the superfamily Dorylaimoidea. LITERATURE CITED Capita Zool. 8, 263 p. WILLIAMS, J. R. 1962. A new genus and species JAIRAJPURI, M. S. 1964. Studies on Nygellidae of Nygolaimidae (Enoplida). Nematologica n. fam. and Belondiridae Thorne, 1939 (Nem- 8: 225-228. Seven New Species of Dorylaimoidea (Nematoda) from India, with Descriptions of Lenonchium n. gen. and Galophinema n. gen. M. RAFIQ SIDDIQI* The nematocles described here were col- Prodorylaimus Andrassy, 1959; and Encho- lected in India from soil associated with the dorella Khan, 1964 (syn. Nordia Jairajpuri roots of plants and trees. The worms were and A. H. Siddiqi, 1964, vide Siddiqi^ 1964a). relaxed in hot water, fixed in F.A. 4 : 10, and It differs from Pungentus in lacking sclerotized mounted in dehydrated glycerin by a method platelets around the vestibulum and by having following Siddiqi (1964). The type slides are differently shaped spear extension and tail. in the Nematode Collections of Dr. M. Rafiq From Enchodelus it can be differentiated in Siddiqi at the Zoology Museum, Aligarh Mus- having enlarged part of the esophagus mea- lim University, Aligarh, India. suring more than half its length, long, drawn- out tails in the two sexes, and contiguous sup- Family Dorylaimidae de Man, 1876 plementary papillae in the male. The atten- Lenonchium n. gen. uated spear, its extension, and single guiding DIAGNOSIS: Medium-sized dorylaims. Head ring help in differentiating this genus from narrow; amphidial apertures slit-like. Spear Prodorylaimus, and finally from Enchodorella lineate with small aperture. Spear extension it is distinguished by having the expanded part rod-like, slightly swollen at base. Spear guid- of the esophagus measuring more than half the ing ring single, prominent, near anterior end length of the esophagus and long attenuated of body. Esophagus muscular, enlarged in tail. more than half its length. Outlet of dorsal Lenonchium onjzae n. gen., n. sp. esophageal gland near front end of enlarged part of esophagus; sub ventral glands widely (Fig. 1,A-K) separated from dorsal gland. Vulva transverse. MEASUREMENTS: Female (holotype): L = Female gonads paired, reflexed at the oviduct. 2.5 mm; a = 65; b = 7; c = 12; V = Testes also paired, dorylaimoid. Spicula large, n-46.5%-n. dorylaimoid, with small lateral guiding pieces. Male (allotype): L - 2.0 mm; a = 58; Supplements in the form of an aclanal pair b = 5.3; c = 14; T = 55%. and a ventromedian series of numerous con- Juvenile (1): L = 1.9 mm; a = 67; b = tiguous papillae. Tails of both sexes elongate- 5.8; c = 8.3; spear = 16 ^ spear extension = filiform. Possibly parasitic on plant roots. 20 p,; spear in esophagus = 19 p.. TYPE SPECIES: Lenonchium onjzae n. gen., DESCRIPTION: FEMALE: Body slightly ven- n. sp. trally arcuate. Cuticle in two layers, marked RELATIONSHIP: Lenonchium n. gen. is re- by fine transverse striae. Lateral hypodermal lated to the genera Pungentus Thorne and chords % body width, with obscure glandular Swanger, 1936; Enchodelus Thorne, 1939; bodies. Amphids stirrup-shaped, sensillar sacs one spear length behind amphidial apertures 1 Section of Nematology, Department of Zoology, Aligarh Muslim University, Aligarh (U.P.), India. (Fig. 1, A). Head smoothly rounded, contin- Copyright © 2011, The Helminthological Society of Washington 82 PROCEEDINGS OF THE [VOL. 32, No. 1 Copyright © 2011, The Helminthological Society of Washington JANUARY, 1965] HELMINTHOLOGICAL SOCIETY 83 uous with body contour, with six inner and fine transverse striae. Amphids large, pocket- ten outer labial papillae. Spear needle-like, like, at level of lip region (Fig. 2, A). Lip 19.5 /A long, with small aperture; its guiding region expanded, knob-like, 11 X 5 //,. Spear ring single, prominent, half spear length from guiding ring single, 8 //, from anterior end. anterior end; spear extension slightly swollen Spear cylindroid, 15 p long, its extension sim- in its posterior half, about as long as spear. ple, 20 ^ in length. Esophagus a slender tube Posterior 55% of esophagus enlarged until until it expands in its last two-fifths. Nerve about half the corresponding body width; its ring 90 ^ from front end. Esophago-intestinal glands as shown in Fig. 1, E. Nerve ring valve large, rounded. Prerectum about three 100 /JL from front end. Esophago-intestinal times body width long; rectum one anal body valve rounded, J/i as wide as body. width in length. Tail conoid to a rounded Vulva a depressed transverse slit; vagina terminus, about twice anal-body width long. extending halfway into body, enveloped by Vulva a transverse slit, vagina extending % thick sphincter muscles. Gonads paired, sym- into body. Gonads paired, symmetrically op- metrical. Each uterus elongate, connected with posed, reflexed at the oviduct; ovaries straight, the oviduct through a narrow passage guarded with a single row of oocytes. by sphincter muscles (Fig. 1, G). Oviducts MALE: Not found. and ovaries also elongate; oocytes in a single RELATIONSHIP: Kochinema secutum n. sp. row. Rectum 1% times anal— body width long. differs from K. proamphidum Heyns, 1963, Tail elongate-filiform, 8 anal-body widths the only known species in the genus, by having long, ending in a finely rounded terminus. a more slender body, shorter and more robust MALE: Body ventrally arcuate, more so in spear, and straight ovaries. the hinder region. Head, spear, and esophagus TYPE HABITAT AND LOCALITY: Collected as described for female. Anterior part of from soil around roots of banana, Musa para- esophagus narrowed near region of nerve ring, disiaca L., at Vangaon (Thana District), Ma- posterior part occupying 58% of esophageal harashtra State, India. length. Testes elongate, one outstretched anteriorly, other reflexed. Sperms elongate, Genus Discolaimium Thorne, 1939 with tapering ends (Fig. 1, H). Spicula 75 p. Discolaimium monhystera n. sp. (Fig. 3, J, K) long, with 10-^-long lateral guiding pieces (Fig. 1, K). Supplements consist of an adanal MEASUREMENTS: Female (holotype): L = pair and a ventromeclian series of 18 contiguous 1.22 mm; a = 53; b = 5; c = 38; V = papillae; ventromedian series beginning half 38.5%«-(i. spicular length in front of cloaca and extending FEMALE (paratype): L = 1.23 mm; a — up to intestine-prerectum junction or three 58; b = 4.7; c = 40; V = 40%. spicular lengths anterior to cloaca. Tail elon- DESCRIPTION: Body cuticle thick, in three gate—filiform, 5.5 times anal-body width long. layers, marked by fine transverse striae. Lat- TYPE HABITAT AND LOCALITY: Paddy, Onjza eral hypodermal chords % body width. Am- sativa L., near Patna City, Bihar State, India. phids stirrup-shaped. Head set off from body by a deep constriction, a little less than half Genus Kochinema Heyns, 1963 as wide as body at neck base. Spear cylin- Kochinema secutum n. sp. (Fig. 2, A-D) drical, 8-9 p, long, with aperture slightly less MEASUBEMENTS : Female (holotype): L = than half its length; spear extension twice its 1.03 mm; a = 38; b = 4.7; c = 28; V = length; guiding ring large, behind labial con- striction. Esophagus enlarged near its middle. DESCRIPTION: FEMALE: Body slightly ven- Orifice of dorsal esophageal gland one body trally arcuate when relaxed. Cuticle marked by width from anterior end of enlarged part of Fig. 1. A-K. Lenonchium onjzae n. gen., n. sp. A. Head end of female. B. Front end of en- larged part of esophagus showing dorsal gland. C. Tail end of male. D. Head end of male. E. Esophageal region of female. F. Tail of female. G. Anterior gonad of female. H. Sperms. I. Esoph- ageal region of male. J. Front end of larva showing developing spear in esophagus. K. Spicular region of male. Copyright © 2011, The Helminthological Society of Washington 84 PROCEEDINGS OF THE [VOL. 32, No. 1 Copyright © 2011, The Helminthological Society of Washington JANUARY, 1965] HELMINTHOLOGICAL SOCIETY 85 esophagus. Esophago-intestinal valve % as esophagus divisible into three almost equal wide as body. parts (Fig. 2, E). Esophago-intestinal valve Vulva transverse, about one esophageal rounded. Nerve ring near middle of neck. length behind base of esophagus; vagina Vulva a transverse slit, J/4 as long as slightly directed posteriad. Anterior set of re- width of body. Vagina thick-walled, with a productive organs absent, posterior normal. +-shaped lumen (Fig, 2, G). Gonad mono- Ovary reflexed about halfway back to vulva. clelphic, opisthodelphic. Anterior uterine sac Prerectum a little over one tail length, extend- a body width long. Prerectum 3-3'X> times ing over rectum which is slightly longer than body-width; rectum a little longer than anal- one anal-body width. Tail convex-conoid to body width. Tail regularly tapering to a finely a rounded terminus, twice anal-body width rounded terminus, 11 times anal-body width long. long. MALE: Not found. MALE: Essentially similar to female. Testes RELATIONSHIP: The presence of only one paired, dorylaimoid. Spicula also dorylaimoid, ovary differentiates Discolaimium monhystera distinctly cephalated, 23-24 ^ long. Supple- n. sp. from all the nominal species of the ments consist of an aclanal pair and two ventro- genus. However, it has some resemblance with median papillae located at 27 and 46 ^ anteriad D. cylindricum Thorne, 1939, from which it cloaca; a third obscure papilla located 90 //, in differs in having longer tail, more anteriorly front of cloaca. Tail dorsally convex-conoid placed vulva, and only one ovary. in its first seventh then elongate-filiform, 8-9 TYPE HABITAT AND LOCALITY: Collected from times anal-body width long. soil around roots of tobacco at Vangaon (Thana RELATIONSHIP: Donjlaimoides longiurus n.