Alpheus antepaenultimus Kim and Abele, 1988
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?....
Ecology and Behavior
Habitat and Host Associations
Lives among mangroves, in mud or muddy sand, in shallow burrows, likely in pairs (Knowlton et al. 2008).
Eastern Pacific: Golfito, Costa Rica; Pacific Panama (Kim and Abele 1988).
Evolution and 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Sequenced in Knowlton et al. 1993, Williams et al. 2001, Hurt and Anker (unpublished); sequences available in GenBank for COI (EF532618-19, AF309875-6, AF308989), glucose-6-phosphate isomerase (AF310728).
Identification and Taxonomy
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.
Maximum body size (carapace length, or CL) of males is 8.1 mm; females, 8.2 mm (Kim and Abele 1988).