Abstract
During a recent fieldwork conducted along the exposed rocky shores of Karachi revealed association between alpheid shrimp Athanas sp. and sea urchin Echinometra mathaei (de Blanville, 1825). Globally symbiotic relationships between shrimps and other invertebrates is a known phenomenon, whereas the association between caridean shrimp and sea urchin has been commonly reported since long. The current study describes taxonomic details of both the organisms. This is the first report on symbiotic association between alpheid shrimp and sea urchin from Pakistan.

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Copyright (c) 2018 Farhana S. Ghory, Quratulan Ahmed, Qadeer Mohammad Ali