Common name: Stimpson's Pistol Shrimp

Scientific name: Synalpheus stimpsonii (de Man, 1888)
Stimpson's Snapping Shrimp or crinoid snapping shrimp (synalpheus stimpsoni) near Anilao, Batangas, Philippines.  Underwater photography and travel.A pictuer of a Stimpson's snapping shrimp
Stimpson's snapping shrimp Synalpheus stimpsoniA pictuer of a Stimpson's snapping shrimp

General information

Stimpson's Pistol Shrimp, Synalpheus stimpsonii, is a fascinating species known for its asymmetrical claws, with one being significantly larger than the other. This larger claw can produce a loud snapping sound used for communication and defense. These shrimps are relatively small, usually not exceeding 2 inches in length, and exhibit a range of colors from translucent to shades of yellow, brown, and red.

Details

Recommended minimum tank volume
30 liter (7.9 gallons)
Salinity
S.G. 1.023 to 1.025
Temperature
24 to 28 °C (75 to 82 °F)
Acidity
pH 8.1 to 8.4
Average size
5 cm (2″)
Care level
Moderate to easy Sensitive to water quality.
Diet
Omnivore Eats detritus and small organisms.
Reefsafe
Yes
Aggression
Peaceful
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Arthropods
    Arthropoda
  3. Class
    Malacostracans
    Malacostraca
  4. Order
    Decapods
    Decapoda
  5. Family
    Pistol Shrimp
    Alpheidae
  6. Genus
    Snapping Shrimp
    Synalpheus
  7. Species
    Stimpson's Pistol Shrimp
    Synalpheus stimpsonii (de Man, 1888)
  8. Synonyms
    Alpheinus tridens Borradaile, 1900
    Alpheus amboinae Zehntner, 1894
    Alpheus stimpsonii de Man, 1888
    Synalpheus brucei Potts, 1915
    Synalpheus consobrinus de Man, 1909
    Synalpheus stimpsonii maldivensis Coutière, 1905
    Synalpheus striatus Kubo, 1938

Care

In the aquarium, Synalpheus stimpsonii requires a setup with plenty of live rock and a sandy substrate to mimic their natural environment. They are generally peaceful but can be territorial with conspecifics. It's important to provide hiding places and a stable environment with consistent water parameters.

Reproduction

Pistol shrimps are known to form monogamous pairs and engage in complex mating rituals. They typically breed in the safety of their burrows, and the female carries the eggs until they hatch into free-swimming larvae.

Symbiosis

Some species of pistol shrimp, including Synalpheus stimpsonii, engage in symbiotic relationships with gobies, particularly those in the genus Amblyeleotris or Cryptocentrus. The shrimp maintains a burrow that both the shrimp and the goby inhabit. The goby acts as a lookout while the shrimp works on the burrow. This relationship provides the shrimp with protection, while the goby gains a safe home.

Habitat

Synalpheus stimpsonii is typically found in shallow tropical marine environments, often in coral reefs or associated with rubble zones. They are distributed across the Indo-Pacific region.