Amemboa Esaki (Hemiptera: Gerromorpha: Gerridae) of India, with descriptions of two new species and establishment of species groups of world species.

Two new species of Gerridae, Amemboa latoae Jehamalar & Dash, new species and A. zetteli Jehamalar & Dash, new species, are described from India. Amemboa latoae is described from Meghalaya and can be recognised by the presence of the two setal tufts on the flexor region of the male fore femur and the slightly dilated midlateral region of the main part of the proctiger.

A new species of Euconocephalus Karny, 1907 (Orthoptera: Tettigoniidae: Conocephalinae: Copiphorini) from India.

A new species, Euconocephalus narayanpurensis Kumar & Chand sp. nov., from India is described in this paper.

An Updated Checklist of Free-living Marine Nematodes from Coastal India.

The present study provides an updated species list of free-living marine nematodes reported from coastal India (Coasts and Islands) based on the thorough consultation of literature published from 1956 to 2022. This exercise resulted in a total of 617 valid species belonging to 266 genera, 48 families, 21 superfamilies and 9 orders. Class Chromadorea comprises 487 species represented by 205 genera, while class Enoplea includes 130 species belonging to 61 genera.

Redescriptions of the type specimens of synonymous nominal taxa of sea snakes (Serpentes: Elapidae: Hydrophis, Laticauda) at the Zoological Survey of India.

We redescribe and illustrate the type specimens of ten taxa of sea snakes of the genera Hydrophis Latreille in Sonnini Latreille, 1801 and Laticauda Laurenti, 1768 in the collections of the Zoological Survey of India. The specimens comprise holotypes and syntypes of ten synonymous nominal taxa that represent seven valid nominal taxa. We here clarify that one specimen ZSI 8278 is a syntype of Hydrophis dayanus Stoliczka, 1872, not holotype as previously stated.

New records of Indo-Pacific sponges from the Andaman and Nicobar Islands, India.

Six Indo-Pacific sponges are recorded for the first time from the Andaman and Nicobar Islands: Agelas ceylonica sensu Thomas, 1981, Axinella donnani (Bowerbank, 1873), Dragmacidon australe (Bergquist, 1970), Siphonodictyon maldiviense (Calcinai, Cerrano, Sarà Bavestrello, 2000), Clathrina clara Klautau Valentine, 2003 and Plakortis bergquistae Muricy, 2011. Among them, D. australe, S.