One new and two known species of Dorylaimoides Thorne and Swanger, 1936 (Nematoda: Mydonomidae) from West Bengal, India.

A few specimens of were collected from the soil around the roots of guava (Psidium guajava L.) and litchi (Litchi chinensis Sonn.) plantations in South 24-Parganas district of West Bengal, India.

Rhinoceronema unicornensis gen. n., sp. n. (Cosmocercoidea: Atractidae) from Indian one horned Rhinoceros (Rhinoceros unicornis Linnaeus, 1758) captivated at the Alipore Zoological Garden, Kolkata, India.

During survey of nematodes from the faecal samples of Rhinoceros unicornis Linnaeus, 1758 remaining captivated in the Alipore Zoological Garden, Kolkata, India 2,500 specimens were recovered in 3 years from March, 2007 to February, 2010. After processing the specimens were identified as a member of the family Atractidae (Railliet 1917) Travassos 1919 which have 22 valid genera. The present specimens differs from all other valid atractid genera in the features of cephalic region, cup-shaped buccal cavity with a pair of teeth, structure of the oesophagus and coarse transversely striated body.

Occurrence of gravid Loa loa in subconjunctival space of man: a case report from West Bengal, India.

Loa loa a benign filarial eye worm is endemic in tropical rain forests areas of west and central Africa. Reports of its sporadic recovery from India are available mostly from the travellers and miogrants. This is the fifth report from India in 100 years.

On a new species of the genus Cobboldina (Nematoda: Atractidae) from Hippopotamus (Hippopotamus amphibius Linnaeus, 1758) captivated at the Alipore Zoological Garden, Kolkata, West Bengal, India.

The specimens of the genus Cobboldina Leiper, 1911 and family Atractidae (Railliet, 1917) Travassos, 1919 recovered from the faecal matter of Hippopotamus (Hippopotamus amphibius Linnaeus, 1758) from the Alipore Zoological Garden, Kolkata, India recognized as a new species after careful observation. The collected nematode differs from the only valid species Cobboldina vivipara Leiper, 1911, in the presence of gubernaculum (13.2-29.