ABSTRACT
Tanqua tiara (von Linstow, 1879) Blanchard, 1904, recovered from the stomach of water monitor lizard, Varanus flavescens (Hardwicke and Gray, 1827), collected from the Dubrajpur town, Birbhum district of West Bengal, India, is redescribed with light as well as scanning electron microscopy. This species is characterised by presence of two large lateral pseudolabia followed by massive cephalic bulb. The inner surface of each pseudolabium is folded into five rounded tooth-like formations which fit into corresponding folds on adjacent pseudolabium. Spicules are equal and similar. Gubernaculum is absent. Caudal papillae are sessile and five pairs in number. Present nematode differs from earlier descriptions of T. tiara in having five pairs of caudal papillae and an unpaired median precloacal papilla. Position of phasmids has also been reported in present study. Actual structure of cervical papillae and cuticular striations have been shown in present SEM studies which are also different from earlier descriptions. Dubrajpur is recorded as new geographical area for this parasite.
ABSTRACT
Meteterakis asansolensis sp. nov. (Nematoda: Heterakidae) recovered from the rectum of Asian common toad, Duttaphrynus melanostictus (Schneider, 1899), collected from Asansol coalfield area in Paschim Bardhaman district of West Bengal, India, is described and illustrated. This species is characterised by the presence of a precloacal sucker, a gubernaculum and two equal and similar spicules (0.31-0.32 mm in length). This species differs from other reported species of the Oriental region by morphometrical ranges of measurements of males (3.09-3.54 mm) and females (4.60-4.72 mm) and the number and the distribution pattern of caudal papillae in males which includes 5 pairs precloacal, 1 pair adcloacal and 5 pairs postcloacal in position.
ABSTRACT
AIMS: The purpose of this article is to describe a new species of Rhabdias Stiles and Hassall, 1905 from West Bengal, India. Rhabdias bengalensis sp. nov. (Nematoda, Rhabdiasidae) recovered from the lungs of Asian common toad, Duttaphrynus melanostictus (Schneider, 1899), collected from Illambazar town, Birbhum district of West Bengal, India. METHODS: The collected nematode specimens were clean by shaking them in 0.67% NaCl solution and were killed and fixed in steaming 70% alcohol; lactophenol was used as a mounting medium for light microscopic examination. The lactophenol treated specimens after examination were directly transferred to 70% alcohol and could be stored satisfactorily. RESULTS: The new species is named as, R. bengalensis sp. nov. (Nematoda, Rhabdiasidae), in reference to its locality of collection, West Bengal, India. The worms are small [(2.84-2.96 mm) in length], anterior end somewhat truncated and posterior end tapering. R. bengalensis sp. nov. is characterised by rounded mouth without lips, inflated cuticle, cup-shaped buccal capsule, pre-equatorial vulva and a conical tail. CONCLUSION: The present nematodes, thus, appear to be new in the field of science and name R. bengalensis sp. nov. is proposed for them. R. bengalensis sp. nov. represents 17th species described from oriental region and the 10th species from India.
Subject(s)
Bufonidae/parasitology , Lung Diseases, Parasitic/veterinary , Rhabditida Infections/veterinary , Rhabditida/classification , Rhabditida/isolation & purification , Animals , India , Lung/parasitology , Lung Diseases, Parasitic/parasitology , Microscopy , Parasitology/methods , Rhabditida/anatomy & histology , Rhabditida Infections/parasitologyABSTRACT
Cosmocerca bengalensis sp. nov. (Ascaridida, Cosmocercidae) recovered from the rectum of an Indian bullfrog, Hoplobatrachus tigerinus (Daudin, 1803), collected from Hetampur town in Birbhum district of West Bengal, India, is described and illustrated. This species is similar to C. acanthurum, C. banyulensis, C. cruzi, C. japonica, C. kalesari, C. microhylae, C. novaeguineae, C. ornata, C. paraguayensis, C. parva, C. podicipinus and C. travassosi in having 5 pairs of plectanes supporting preanal papillae but differs from these species by general morphometry, absence of somatic papillae in females, absence of gubernaculum and having only one pair of adanal papillae in males and one pair postanal papillae in females except C. microhylae. Present parasites differ from C. microhylae by absence of gubernaculum and general morphometry. Cosmocerca bengalensis sp. nov. represents the thirtheith species assigned to the genus, seventh from Oriental region and fifth species from India.
Subject(s)
Anura/parasitology , Spirurina/classification , Animals , Female , India , Male , Rectum/parasitology , Spirurina/anatomy & histology , Spirurina/isolation & purificationABSTRACT
Camallanides prashadi Baylis and Daubney, 1922, recovered from the intestine of Asiatic water snake, Xenchropis piscator (Schneider, 1799), collected from the Bolpur town, Birbhum district of West Bengal, India, is redescribed. This species is characterised by presence of buccal capsule which is reddish-brown in colour and consists of two lateral buccal valves. Each buccal valve bears five complete and four incomplete longitudinal ridges, presence of similar, non-alate, unequal spicules and fourteen pairs of pedunculated caudal papillae. Of these papillae, seven pairs are preanal, two pairs are adanal and five pairs are postanal in position. Camallanides piscatori Khera, 1954 is proposed as a synonym for Camallanides prashadi Baylis and Daubney, 1922. Birbhum district is recorded as new geographical locality for this parasite.
ABSTRACT
Studies on nematode parasites from anuran hosts from Eastern India, particularly West Bengal, are rare. To our knowledge, there is a report of larvae of Monhysterides sp. (a fish parasite) from cysts within the body cavity and musculature of Duttaphrynus melanostictus, Hoplobatrachus tigerinus and Euphlyctis hexadactylus as well as descriptions of Aplectana duttaphryni from D. melanostictus, Aplectana dubrajpuri from H. tigerinus, Cosmocerca microhylae from Microhyla rubra and Rhabdias bulbicauda from D. melanostictus. Here, we report mature individuals of typical anuran parasites, Diplodiscus amphichrus and Seuratascaris numidica, from H. tigerinus and larvae of Acuariidae (a bird parasite) from Fejervarya limnocharis collected in Kulti, West Bengal.
ABSTRACT
Cosmocerca microhylae sp. nov., recovered from the rectum of a red narrow-mouthed frog, Microhyla rubra (Jerdon, 1854) (Anura: Microhylidae), collected from Bolpur in the Birbhum district of West Bengal, India, is described and figured. This species is similar to C. acanthurum, C. banyulensis, C. cruzi, C. japonica, C. kalesari, C. novaeguineae, C. ornata, C. paraguayensis, C. parva, C. podicipinus and C. travassosi in having 5 pairs of plectanes supporting preanal papillae but differs from these species by smaller size, absence of somatic papillae in females and having only one pair of adanal papillae in males and one pair postanal papillae in females. Cosmocerca microhylae sp. nov. represents 27th species assigned to the genus, and 4th species from India.
Subject(s)
Anura/parasitology , Ascaridida Infections/veterinary , Ascaridida/classification , Ascaridida/isolation & purification , Animals , Ascaridida/anatomy & histology , Ascaridida Infections/parasitology , India , Microscopy , Rectum/parasitologyABSTRACT
Aplectana dubrajpuri sp. nov., recovered from the rectum of Indian bull frog, Hoplobatrachus tigerinus, collected from Dubrajpur in the Birbhum district of West Bengal, India, is described and illustrated. This species is characterised by absence of gubernaculum and differs from other species of Aplectana which lack a gubernaculum (viz. A. akhrami, A. artigasi, A. chilensis, A. crossodactyli, A. crucifer, A. delirae, A. meridionalis, A. papillifera, A. praeputialis, A. tarija and A. vercammeni) by smaller size of males and females, absence of somatic papillae in females and number and distribution of caudal papillae in males which include 3 pairs precloacal, 1 pair adcloacal, 14 pairs postcloacal and a single unpaired small papilla on the upper lip of cloaca. Aplectana dubrajpuri sp. nov. represents 51st species assigned to the genus and 3rd from India.
Subject(s)
Anura/parasitology , Ascaridida Infections/veterinary , Ascaridida/classification , Ascaridida/isolation & purification , Animals , Ascaridida/anatomy & histology , Ascaridida Infections/parasitology , Female , India , Male , Microscopy , Rectum/parasitologyABSTRACT
During routine survey for amphibian nematodes from coalfield areas of West Bengal, India 7 male and 12 female nematodes were recovered from the rectum of one out of three Duttaphrynus melanostictus (Schneider, 1899) examined for helminth infection from Kulti, Burdwan. On examination the recovered nematodes were found to belong to a new species of the genus Aplectana (Nematoda: Cosmocercidae) and the name Aplectana duttaphryni sp. nov. is proposed for them. This species is most similar to those species which possess gubernaculum but differs from all by distribution pattern of caudal papillae. Aplectana duttaphryni sp. nov. represents 49(th) species assigned to the genus, but only the 4(th) species reported from Oriental realm and second from India.
