Observations on the predatory behaviour of Mononchus aquaticus

This article does not have an abstract

Description of two new species of Myctolaimus Cobb, 1920 (Nematoda: Cylindrocorporidae) from Northern India

This paper deals with description of two new species of Myctolaimus Cobb, 1920 obtained from ditch samples from Kishtwar, Jammu and Kashmir, India. M. neolongistoma sp, n. is characterized by its medium-sized body (L= 0:60-0.67; a= 217-26.1;b- 4.8-5.1;c= 4.8-5.3, c'= 6.9-7.0; V= 48.2-51.3) with fine longitudinal striations, petalloid cheiforhabdions, isthmus equal or slightly smaller than basal bulb, and males with 20-24 µm long spicules and ten pairs of genital papillae. The other species, M. kishtwarensis sp. n., is characterized by its large body (L= 0.86-1.14; a= 25.1-30.9; b= 5.5-6.8; c= 4.4-5.9; d = 7.2-10.2; V= 43.1-47.8), six radiating cheilorhabdial arms, isthmus larger than basal bulb and males with 24-28 µm long spicules, and nine pairs of genital papillae

Aggregation of Mononchoides longicaudatus and M. fortidens (Nematoda: Diplogasterida) at feeding sites

This article does not have an abstract

Predatory abilities of Mononchoides longicaudatus and M. fortidens (Nematoda: Diplogasterida) and factors influencing predation

The predatory abilities of Mononchoides longicaudatus and Mononchoides fortidens (Nematoda: Diplogasterida) and factors that influence the booty In in vitro studies examined the predatory skills of all stages of Mononchoides longicaudatus and M. fortidens, including prey capture, the mechanism of food intake, amount of prey making for adults and juveniles, as well as the influence of the number Beutebevorzugung prey, the predator hunger and temperature on the booty. The mechanisms of prey capture and feeding, are divided into five phases: the encounter with prey, attack response, attack, release saliva / extracorporeal digestion and food intake. Most phases were comparable for both predators. M. longicaudatus began fortidens frequently and needed less time to eat the prey than M.. The latter examined his booty and soft for a long time, during the examination of M. fortidens was intense and shorter. The rate of the prey was making in male and female robbers beyond twelve days away immediately. It was controlled by the number of available prey, the starvation of the predator, and temperature. The highest prey found in a population of 200 prey animals at 25-30 ° C instead of robbers who had been starving for 12 days. Acrobeloides sp. Cephalobus sp., Panagrellus redivivus and Meloidogyne incognita J2 stages of Anguina tritici and were preferred by two robbers at the most. Hoplolaimus indicus and Hemicriconemoides mangiferae were not eaten

The systematic position of Mononchulus cobb, 1918

The genus Mononchulus Cobb, 1918, hitherto placed in the Oncholaimidae, is shown to possess conspicuous similarities with Oionchus Cobb, 1913, especially in structure of the stoma, and is herewith transferred to the Bathyodontidae. Details of the mouth cavities of Mononchulus and Oionchus are given, based upon the study of cross sections and in toto views. A key to the genera of Bathyodontidae is presented

Taxonomic studies on the genus Tylencholaimus de Man, 1876 (Dorylaimoidea) with a key to the species

The genus Tylencholaimus de Man, 1876 is removed from the Dorylaimidae and placed in the Leptonchidae. Consequently the subfamily Tylencholaiminae Filipjev, 1934 is also transferred to Leptonchidae; it is considered synonymous with Xiphinemellinae Jairajpuri, 1964, and contains the genera Tylencholaimus, Botalium, Discomyctus, Xenonchium and Xiphinemella. The genus Enchodelus remains in the Dorylaimidae. Tylencholaimus mirabilis (Butschli, 1873), the type species of Tylencholaimus, is redescribed from topotypes; T. brevicaudatus (Tarjan, 1953) is considered identical with it. A neotype is designated and the male, unknown so far, is described. Eight new species are described. T. pusillus has the same shape of lips as T. minimus de Man, but is much smaller and there are no radial striae in the cuticle. T. congestus and T. savaryi are characterized by didelphic gonads and by a number of large cells surrounding the vagina; in T. congestus the lip region is offset by a shallow constriction, the inner papillae do not project and the tail is hemispheroid; in T. savaryi the lips are offset by a deep constriction, the inner papillae project markedly and the tail is convex-conoid. T. crassus is also didelphic, but much stouter than T. congestus and T. savaryi, and there are no large cells around the vagina. T. formosus and T. airolensis are prodelphic, the rudiment of the posterior gonad is large and serves as receptaculum seminis; in T. formosus the oesophagus is expanded behind the middle, the two parts being separated by a marked constriction; in T. airolensis the two parts of the oesophagus are equal in length and not separated by a constriction. In T. maritus the rudiment of the posterior female gonad is very small, the tail is hemispheroid and males are numerous. T. paradoxus has a very fine spear and minute sclerotized pieces near the oral opening. In addition, a redescription is given of T. stecki Steiner, 1914. T. similis jairajpuri, 1965 is synonymized with T. lepionchoides Loof, 1964; T. macrurus Siddiqi, 1964 may also be identical with this species. A few additional details of T. viduus Jairajpuri, 1965 are given. A key to the species is presented

Description of two new species of Myctolaimus Cobb, 1920 (Nematoda: Cylindrocorporidae) from northern India

This paper deals with description of two new species ofMyctolaimus Cobb, 1920 obtained from ditch samples from Kishtwar, Jammu and Kashmir, India. M. neolongistoma sp. n. is characterized by its medium-sized body (L= 0.60- 0.67; a= 21.7-26.1; b= 4.8-5.1; c= 4.8-5.3, cÕ= 6.9-7.0; V= 48.2-51.3) with fine longitudinal striations, petalloid cheilorhabdions, isthmus equal or slightly smaller than basal bulb, and males with 20-24 mm long spicules and ten pairs of genital papillae. The other species, M. kishtwarensis sp. n., is characterized by its large body (L= 0.86-1.14 ; a= 25.1-30.9; b= 5.5-6.8; c= 4.4-5.9; c'= 7.2-10.2; V= 43.1-47.8), six radiating cheilorhabdial arms, isthmus larger than basal bulb and males with 24-28 mm long spicules, and nine pairs of genital papillae.En este trabajo se describen dos nuevas especies del géneroMyctolaimus Cobb, 1920, recolectadas en muestras de acequias de Kishtwar, Jammu and Kashmir, India. M. neolongistoma sp. n. se distingue por tener un tamaño corporal medio (L=0.60-0.67; a= 21.7-26.1; b= 4.8-5.1; c=4.8-5.3; c'=6.9-7.0; V=48.2-51.3), fina estriación longitudinal, queilorrabdiones petaloideos, istmo faríngeo igual o poco más pequeño que el bulbo basal, y machos con esp.culas de 20-24 mm de longitud y diez pares de papilas genitales. La otra especie, M. kishtwarensis sp. n., se caracteriza por su tama.o corporal grande (L=0.86-1.14; a=25.1-3.0; b=5.5-6.8; c= 4.4-5.9; cÕ=7.2-10.2; V=43.1-47.8), seis brazos queilorrabdiales radiales, istmo mayor que el bulbo basal, y machos con esp.culas de 24-28 mm de longitud y nueve pares de papilas genitales

Nematodes of high altitudes in India. IV. Two new species of Belondiridae Thorne, 1939 (Dorylaimida)

Two new species of Belondiridae, Dorylaimellus himalayensis and Axonchium manalicum from high altitudes in India are described. The former comes close to D. graminis Kruger, 1965, but differs in its longer body, attenuated spear and differently shaped tail. Axonchium manalicum n. sp. comes closest to A. metobtusicaudatum (S. Stekhoven & Teunissen, 1938) Nair & Coomans, 1973, A. heynsi Nair, 1973 and A. transkeiense Nair, 1973; it differs from the first mainly in its longer body, longer prerectum, longer and stouter spicules; from A. heynsi and A. transkeiense the new species mainly differs in its longer anterior uterine sac, differently shaped spicules and in having the last ventromedian supplement within spicular range. A key to the species of Dorylaimellus Cobb, 1913 is provided

On the identity of Tylencholaimus leptonchoides Loof, 1964 and T. macrurus siddiqi, 1964 (Leptonchidae)

This article does not have an abstract