Overview

Brief Summary

Overview

Alpheus antepaenultimus is an eastern Pacific snapping shrimp first described from Panama. It is found among mangroves, in mud or muddy sand, in shallow burrows; for more details, see Knowlton et al. 2008, http://biogeodb.stri.si.edu/bioinformatics/alpheus/Alpheus_Template.php?....

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Source: Alpheidae - Snapping Shrimp

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Comprehensive Description

Systematics and Identification

Alpheus antepaenultimus belongs to the Edwardsii species group within the genus Alpheus (Kim and Abele 1988). The species name is derived from the Latin "antepaenultimus" (antepenultimate), and refers to the particularly broad antepenultimate segment of the third maxilliped in A. antepaenultimus. Type locality: Amador, Panama (Kim and Abele 1988), types stored at the National Museum of Natural History, Smithsonian Institution (USNM). Holotype: USNM 229943.

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Source: Alpheidae - Snapping Shrimp

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Distribution

Eastern Pacific: Golfito, Costa Rica; Pacific Panama (Kim and Abele 1988).

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Source: Alpheidae - Snapping Shrimp

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Physical Description

Morphology

Maximum body size (carapace length, or CL) of males is 8.1 mm; females, 8.2 mm (Kim and Abele 1988).

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Source: Alpheidae - Snapping Shrimp

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Type Information

Paratype for Alpheus antepaenultimus Kim & Able, 1988
Catalog Number: USNM 229944
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Sex/Stage: male; female; ; ovigerous
Preparation: Alcohol (Ethanol)
Collector(s): Smithsonian Tropical Research Institute
Year Collected: 1973
Locality: Panama Bay, Amador, Naos Causeway, NE Area, Canal Zone, Panama, Gulf of Panama, North Pacific Ocean
  • Paratype:
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Source: National Museum of Natural History Collections

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Holotype for Alpheus antepaenultimus Kim & Able, 1988
Catalog Number: USNM 229943
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Sex/Stage: male;
Preparation: Alcohol (Ethanol)
Collector(s): Smithsonian Tropical Research Institute
Year Collected: 1973
Locality: Panama Bay, Amador, Naos Causeway, NE Area, Canal Zone, Panama, Gulf of Panama, North Pacific Ocean
  • Holotype:
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© Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology

Source: National Museum of Natural History Collections

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Ecology

Associations

Habitat and Host Associations

Lives among mangroves, in mud or muddy sand, in shallow burrows, likely in pairs (Knowlton et al. 2008).

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Source: Alpheidae - Snapping Shrimp

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Evolution and Systematics

Evolution

Phylogenetics

Sequenced in Knowlton et al. 1993, Williams et al. 2001, Hurt and Anker (unpublished); sequences available in GenBank for COI (EF532618-19, AF309875-6, AF308989), glucose-6-phosphate isomerase (AF310728).

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Source: Alpheidae - Snapping Shrimp

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