A new species of the genus Eutyphoeus Michaelsen 1900 (Clitellata: Acanthodrilidae) from the North-Eastern Biogeographic Zone, India.

A new species of the genus Eutyphoeus is described herein from the material collected from Assam, the North-eastern region of India. The new species Eutyphoeus dhubriensis sp. nov. belongs to a group of avestibulate, metandric species, with bidiverticulate spermathecae, lacking lateral intestinal caecae. The proposed species is distinguished from its congeners by the shape, position of genital markings and associated glands, as well as number and position of ventral intestinal caecae and supra-intestinal glands.

A new species of the genus Hoplochaetella Michaelsen 1900 (Clitellata: Octochaetidae) from the Deccan Peninsula Biogeographic Zone, India.

A new species Hoplochaetella darwini sp. nov. is described from the Deccan Peninsula biogeographic zone of South Indian State, Tamil Nadu. The new species is distinguished from all known Hoplochaetella species by having only one pair of spermathecal pores in segment 7, and a combination of male and prostatic pores in segment 17. The canonical analysis of principal coordinates also supported the proposed new species, showing significant differences with other members of the genus based on the taxonomical characters such as the number and position of spermathecae and prostate glands. Furthermore, an identification key and updated checklist of known species in the genus are also presented along with updated locality details.

A new species of the genus Tonoscolex Gates, 1933 (Clitellata: Megascolecidae) from India.

Tonoscolex kalimpongensis Ahmed Julka sp. nov. is described from Neora Valley National Park in the Kalimpong district of West Bengal, India. The new species is easily distinguished by the presence of one pair of spermathecal pores at intersegmental furrow 7/8. An updated checklist of the genus Tonoscolex and an identification key to the Indian Tonoscolex species are provided as well.