Background: Significant works have been done on the diversity and distribution of porcellanids crabs in Indian coasts. The present work reports and describe porcelain crabs from the western coast of India. Result: Five species of porcelain crabs in three genera are reported from the western coast of India. Morphological descriptions with measurement of the reported species with key characters and distribution status are given. Conclusion: Petrolisthes boscii (Audouin, 1826), P. lamarckii (Leach, 1820), and P. rufescens (Heller, 1861) are commonly distributed along the studied coast. Enosteoides ornatus (Stimpson, 1858) and Pachycheles tomentosus (Henderson, 1893) sparsely occur and are firstly reported from the Gujarat coast.

Population studies on three species of Mudskippers have been carried out during 2015-16 from the mangrove and non-mangrove areas of Ghogha coast, Bhavnagar. Ghogha is small coastal town situated on west coast of India, Gulf of Khambhat. Periopthalmus waltoni, Boleophthalmus dussumeiri and Scartelaos histophorus reported in the study area. Mangroves play an important role to maintain the population of mudskipper and to prevent the reduction of mud layer. The thickness of mud layer also plays an important role in mangrove and non-mangrove habitat. Highest population density, frequency and abundance of Boleophthalmus dussumeiri, Periopthalmus waltoni and Scartelaos histophorus recoerded respectivly.

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From India, two species of the callianassid ghost shrimp genus Neocallichirus Sakai, 1988 are known. In this study, Neocallichirus jousseaumei (Nobili, 1904) is first recorded from India based on a single specimen collected from intertidal zone of Diu coast.  A brief description for giving evidence of the identification and notes on habitat is presented.