Alpheus distinctus Kim and Abele, 1988

Alpheus distinctus
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Original DescriptionAlpheus distinctus Kim and Abele, 1988: 95, fig. 4. 
ClassificationArthropoda: Crustacea: Malacostraca: Decapoda: Alpheidae. 
Type LocalityPunta Paitilla, Panama. (symbol on the map). 
Type MaterialHolotype: USNM 229940, paratype; USNM 229941, in ethanol, in good condition. 
Common NamePacific mud snapping shrimp. 
Taxonomic StatusValid. 
Geographic DistributionTropical Eastern Pacific [EP]: currently known only from Panama and Costa Rica (see map). 
FrequencyLocally common, especially in estuarine and near-mangrove environments, e.g., around Panama Canal and in the mangrove channels of southern Veraguas in Panama, and around Punta Morales in Costa Rica. 
HabitatMud-sand and mud bottoms, often near mangroves. 
Depth RangeIntertidal to about 5 m. 
Life History and BehaviorFree-living in burrows made in mud or silty sand, always under rocks or various debris; usually in male-female pairs. 
Related SpeciesNone closely related; A. firmus Kim and Abele, 1988 [EP] and A. heterochaelis Say, 1818 [WA] can be separated from A. distinctus by the gradually sloping superior groove on the palm of the major chela. 
SizeBody length to about 40 mm. 
Color PatternSee photo
Molecular BarcodeGenBank number 00000000. 
Major ReferencesKim and Abele, 1988 [original description, illustrations]. 

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