Palaemon pugio

Palaemon pugio
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Clade:	Pancrustacea
Class:	Malacostraca
Order:	Decapoda
Suborder:	Pleocyemata
Infraorder:	Caridea
Family:	Palaemonidae
Genus:	Palaemon
Species:	P. pugio
Binomial name
Palaemon pugio (Holthuis, 1949)
Synonyms
Palaemonetes pugio Holthuis, 1949

Palaemon pugio, commonly known as daggerblade grass shrimp, is a small, transparent species of shrimp with yellow coloring and brownish spots. It can be found in estuarine and tidal marsh habitats throughout the western Atlantic Ocean and Gulf of Mexico. Palaemon pugio has a smooth carapace and abdomen, as well as three pairs of legs. The second pair is the strongest, while the third pair lacks chelae (claws). It reaches a length of around 5 cm (2.0 in), and has a life span of around one year. Like most grass shrimp, it is a forager and feeds on a variety of items, including microalgae. They themselves are consumed by killifish and other small foraging fish.

References

Further reading

• Georgiandra Little (1968). "Induced winter breeding and larval development in the shrimp, Palaemonetes pugio Holthuis (Caridea, Palaemonidae)". Crustaceana. Supplement 2: 19–26. JSTOR 25027384.
• A. C. Broad (1957). "Larval development of Palaemonetes pugio Holthuis". The Biological Bulletin. 112 (2): 144–161. JSTOR 1539193.
• Sue A. Chaplin-Ebanks & Mary C. Curran (2005). "The effect of the parasitic isopod, Probopyrus pandalicola (Packard, 1879), on tidal activity patterns of the grass shrimp, Palaemonetes pugio Holthuis, 1949". Crustaceana. 78 (9): 1053–1061. doi:10.1163/156854005775360990. JSTOR 20107579.
• Key, P. B., Wirth, E. F., & Fulton, M. H. (2006). A review of grass shrimp, Palaemonetes spp., as a bioindicator of anthropogenic impacts. Environmental Bioindicators, 1(2), 115-128.
• Key, P. B., Chung, K. W., West, J. B., Pennington, P. L., & DeLorenzo, M. E. (2020). Developmental and reproductive effects in grass shrimp (Palaemon pugio) following acute larval exposure to a thin oil sheen and ultraviolet light. Aquatic Toxicology, 228, 105651.

External links

• Daggerblade Grass Shrimp
• "Palaemon pugio". The Encyclopedia of Life.

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