Philyra

Abstract: The brachyuran crabs diversity studied from Mudasal Odai (Lat.11°29'N; Long.79°46'E) and Nagapattinam (Lat.10°46'N; Long.79°59'E) coast of Tamil Nadu, south east India. We recorded 34 species, 15 genera and 7 families in Mudasal Odai and 31 species, 15 genera and 7 families in Nagapattinam coast. The most diverse families are Portunidae (17 species in Mudasal Odai, 15 species in Nagapattinam), and Leucosiidae (5 species in Mudasal Odai, 4 species in Nagapattinam). Out of 15 genera, Charybdis has more number of species (12 species in Mudasal Odai, 9 species in Nagapattinam). Both species (Philyra globosa, Charybdis hoplites) in two coasts, four species (Philyra scabriuscula, Charybdis edwardsi, Charybdis natator, Charybdis variegata) in Mudasal Odai coast and one species (Portunus spinipes) in Nagapattinam coast are dominant. Four species (Charybdis granulata, Charybdis lucifera, Podophthalmus vigil, Portunus spinipes) in Mudasal Odai and two species (Philyra scabriuscula, Portunus gracilimanus) in Nagapattinam are abundant. Three species in two coast, ten species in Mudasal Odai and nine species in Nagapattinam coast are co-abundant. There are nine species in both coasts, fourteen species in Mudasal Odai and seventeen species in Nagapattinam coast are present status. Among the 38 species, four was absent in Mudasal Odai and seven in Nagapattinam coast.

Abstract: Twenty species in 17 genera of decapod crustaceans are reported from the Upper Miocene Mapulo Formation in Taysan, Batangas, southern Luzon and the Lower Pleistocene Man- dog Formation in Davao City, southeastern Mindanao, Philippines. Of these, Leucosia martini, Nursia bilobata, Pseudophilyra granulimarginata, Cryptolutea warreni, Demania pilipinas, and Hexapus granuliformis are described as new. Neocallichirus dijki (Martin, 1883), new combination is also included. In addition, three new combinations are proposed: Philyra shihchenii for Leucosia shihchenii Hu and Tao, 1979, from the Pliocene of Taiwan, Paranursia acharyai for Nursia acharyai Bachmayer and Mohanti, 1973, from the Miocene of India, and Cryptolutea litoralis for

Abstract: Materials forming the basis of the present investigation are 88 species of Brachyura representing the &milies Dromiidae, Dorippidae, Calapidae, Leucosiidae, Hymenosomidae, Maiidae, Parthenopidae, Pinnothwidae, Ooimplacidae, Portunidae, Grapsidae, Ocypodidae and Xanthidae collected from the Indian coast of the Gulf of Mannar and Palk Bay. Of the total of 88 species, Zalasius indica is new to science, Portimus samoensis (Ward) is pertiaps known only from the type locality and Rhabdonotus pictus A. Milne Edwards has SQ far been reported only by A. Milne Edwards (1878) and De Man (1888); the additional records for the Indian region are Dromldiopsis cranioides (De Man), Dorippe polita Alcock and Anderson, Ekunena stndensis Alcock, Halimus aries (Latreille), Melopograpsus frontalis Miers, M. thulcuar (Owen), nalamita spinifera Borradaile, T. parvidens Rathbun, Clusrybdis {Charybdis) anisodon (De Haan), Portunus pubescens (Dana) and P. samoensis. Xenophthabrms plmotheroides White, Philyra verrucosa Henderson and Aethra scruposa (Linnaeus) are species of interest.