MORPHOLOGICAL PHYLOGENY OF ALPHEID SHRIMPS: PARALLEL PREADAPTATION AND THE ORIGIN OF A KEY MORPHOLOGICAL INNOVATION, THE SNAPPING CLAW
- A. Anker, S. Ahyong, P. Noël, A. R. Palmer
- BiologyEvolution; international journal of organic…
- 1 December 2006
The first phylogenetic hypothesis of relationships among 36 extant genera of alpheid shrimps is presented, based on a cladistic analysis of 122 morphological characters from 56 species, and this hypothesis is used to explore evolutionary trends in morphology and species diversity.
Global diversity of shrimps (Crustacea: Decapoda: Caridea) in freshwater
With the exception of Antarctica, freshwater shrimp are present in all biogeographical regions, however, the Oriental region harbours the majority of species, whilst the Nearctic and western Palaearctic are very species-poor.
Revision of the western Atlantic members of the Alpheus armillatus H. Milne Edwards, 1837 species complex (Decapoda, Alpheidae), with description of seven new species
- A. Anker
- 12 July 2012
The western Atlantic members of the Alpheus armillatus H. Milne Edwards, 1837 species complex, which includes someof the largest and most common intertidal snapping shrimps, are revised based on…
Macrofauna associated with echiuran burrows : A review with new observations of the innkeeper worm, Ochetostoma erythrogrammon Leuckart and Ruppel, in Venezuela
- A. Anker
- Environmental Science, Biology
Commensal animals most frequently observed in echiuran burrows are bivalves, polychaetes, brachyuran crabs, alpheid shrimps, and copepods, which may also live in association with non-burrowing, crevice-dwelling echiurans.
New species and records of alpheid shrimps, genera Salmoneus Holthuis and Parabetaeus Coutière, from the tropical western Atlantic (Decapoda, Caridea)
- A. Anker
- 3 December 2007
Six species of the alpheid shrimp genus Salmoneus Holthuis, 1955, including two new species, are reported from the tropical western Atlantic, and Parabetaeus hummelincki is recorded for the first time in Brazil.
A MULTILOCUS TEST OF SIMULTANEOUS DIVERGENCE ACROSS THE ISTHMUS OF PANAMA USING SNAPPING SHRIMP IN THE GENUS ALPHEUS
Divergence times in two species pairs were shown to occur much earlier than the Isthmus final closure, but much of the variance in pairwise genetic distances from cytochrome oxidase I (COI) was explained when ancestral polymorphisms were accounted for.
Molecular phylogeny reveals extensive ancient and ongoing radiations in a snapping shrimp species complex (Crustacea, Alpheidae, Alpheus armillatus).
Two new species of snapping shrimps from the Indo-Pacific, with remarks on colour patterns and sibling species in Alpheidae (Crustacea : Caridea)
- A. Anker
Two new species of snapping shrimps belonging to the A. edwardsil group can be distinguished from all other species of Alpheus by several features of the first and second chelipeds, liontal region, third maxilliped, and most readily by their conspicuous colour patterns.
Revision of the Alpheus cristulifrons species complex (Crustacea: Decapoda: Alpheidae), with description of a new species from the tropical eastern Atlantic
Molecular data suggest that A. utriensis is the eastern Pacific sister clade to the amphi-Atlntic clade that includes A. cristulifrons and A. xanthocarpus sp.
On a collection of freshwater shrimps (Crustacea Decapoda Caridea) from the Philippines, with descriptions of five new species
The study deals with a small collection of epigean and hypogean freshwater shrimps made by an Italian speleological expedition in 1991 in various localities of the Philippine Archipelago, and…