Report of the sea squirt Pyura aff. longispina (Stolidobranchia: Pyuridae) with three siphons in the Gulf of Mexico

Moving eastwards: first occurrence of the range-expanding Haliclona (Chalinula) nigra (Boury-Esnault & Lopes, 1985) (Porifera; Demospongiae) in Algerian waters, a case of tropicalization?

Fish assemblages of the Mediterranean shallow sandy shore, with reference to thermal effluents of electric power stations

First record of the palaemonid shrimp Cuapetes andamanensis (Decapoda: Caridea) from the southeastern India, with notes on its morphology

Effect of size, sex, sexual maturity, and fishing season on the accumulation of heavy elements in the tissues of Red Sea goatfish Parupeneus forsskali (Fourmanoir & Guézé, 1976) in the coastal waters of Latakia Governorate, Syria

Biochemical responses of Donax trunculus (Linnaeus, 1758) to cadmium: acute exposure vs recovery during the resting stage

Melanella holothuriborus sp. nov. (Eulimidae), a new species of gastropod parasite of the aquacultivated sea cucumber Holothuria scabra (Echinodermata)