Catalogue of the moniligastrid earthworms (Clitellata, Moniligastrida, Moniligastridae) of the world.

This study presents a comprehensive catalogue of the moniligastrid earthworms (Moniligastrida, Moniligastridae) of the world. A total of 176 valid species/subspecies belonging to 5 genera are known to exist in this primitive family. Drawida is the speciose genus with 147 species/subspecies. Of the various moniligastrids, three species of Drawida are considered as peregrine outside its normal Asian range. Among the valid species, occurrence of 30.68% are known only from the type locality. It is noteworthy that the types of 125 (71.02%) species are currently known to exist in various repositories around the world. The existence of the remaining species can only be inferred from the literature since their types are either non-existent, missing, dried out, or lost. Present catalogue includes valid scientific names, synonyms, type locality, type respository details along with registration number, geographic distribution pattern within its native range, and references.

Redescription of the earthworm Moniligaster gravelyi Stephenson, 1915 (Clitellata, Moniligastridae) based on recent collections from Kerala state, India.

Earthworms of the genus Moniligaster Perrier, 1872 can be distinguished from other genera of the family Moniligastridae by the presence of spermathecal atrial glands. Moniligaster gravelyi Stephenson, 1915 has so far been known only from a single specimen, and it is the only species with supposed single spermathecal atrial gland in the genus. Hence, this species has been a subject to some taxonomic confusion. Here, M. gravelyi is redescribed from new material collected and illustrated for the first time. The current study expanded its description and provided a more comprehensive taxonomic characterization of the species. Comparison of the species with closely related species are also made. Apart from this detailed information on its habitat and geographical range is also provided.

Three new species and four new species records of earthworms of the genus emMoniligaster/em Perrier, 1872 (Clitellata: Moniligastridae) from Kerala region of the Western Ghats Biodiversity Hotspot, India.

Three new species of Moniligaster Perrier, 1872, namely M. bahli Narayanan Julka, sp. nov., M. blakemorei Narayanan Julka, sp. nov. and M. keralensis Narayanan Julka, sp. nov. are described from materials collected from the Indian state of Kerala. Moniligaster cernosvitovi Gates, 1962, Moniligaster horsti Gates, 1940, Moniligaster michaelseni Gates, 1940 and Moniligaster stephensoni Gates, 1940 are recorded for the first time from the state. With the new findings, a total of 10 Moniligaster species are known from Kerala. Moniligaster species are restricted to southern peninsular India, except Moniligaster ivaniosi Manazhy, 2011, decribed from the Andaman Islands, outside the currently known distributional range of the genus. Hence we critically reviewed the original description and reinvestigated the holotype. As a result, Moniligaster ivaniosi is considered a junior synonym of Drawida nepalensis Michaelsen, 1907.

New species and new records of earthworms of the genus Drawida from Kerala part of the Western Ghats biodiversity hotspot, India (Oligochaeta, Moniligastridae).

Two new species of Drawida Michaelsen, 1900, namely Drawida polydiverticulata Narayanan & Julka, sp. n. and Drawida thomasi Narayanan & Julka, sp. n., are described from material collected from the Indian state of Kerala, which lies in the Western Ghats biodiversity hotspot. Drawida elegans Rao, 1921, Drawida kanarensis Stephenson, 1917, Drawida modesta Rao, 1921, Drawida somavarpatana Rao, 1921, and Drawida thurstoni Gates, 1945 are recorded for the first time from the state.

Checklist of the earthworms (Oligochaeta) of Kerala, a constituent of Western Ghats biodiversity hotspot, India.

A checklist of earthworm species hitherto known from Kerala, a constituent of the Western Ghats biodiversity hotspot in India, is presented. In total, 88 species and subspecies are recorded, of which 55 are Kerala endemics, 9 near endemics, 14 exotics and 10 native peregrines. These belong to 26 genera and 9 families. The checklist includes the literature citation to the original description, type locality, any significant subsequent generic placements, and the district distributional pattern for each species/ subspecies.