California bay shrimp

Crangon franciscorum is a species of shrimp in the family Crangonidae which is endemic to the brackish estuaries of California, and found from Puget Sound in the north to San Diego, California in the south. The species is especially abundant in San Francisco Bay, despite population fluctuations due to environmental stresses. Its common names include bay shrimp, sand shrimp, common shrimp, grass shrimp, black shrimp, California shrimp and black tailed shrimp.

Crangon est un genre de crustacés décapodes qui regroupe différentes espèces de crevettes communes, dont la crevette grise. Les crevettes roses appartiennent au genre Palaemon, également de l'ordre des décapodes. Ce qui distingue les crevettes grises des crevettes roses est l'absence de rostre en avant de la tête.

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