00457nas a2200121   4500008004100000245012500041210006900166300000900235490000700244100001900251700001900270856004600289       1979                        eng d00aDecapod crustacean fauna of Seven and One-Half Fathom Reef, Texas: species composition, abundance, and species diversity0 aDecapod crustacean fauna of Seven and OneHalf Fathom Reef Texas   a1-290 v221 aFelder, D., L.1 aChaney, A., H.  uhttps://alpheidae.myspecies.info/node/25502681nas a2200169   4500008004100000245012900041210006900170260000800239300001400247490000700261520213000268100002002398700002102418700001902439700001902458856003402477       2002                        eng d00aGenetic, ecological, and behavioural divergence between two sibling snapping shrimp species (Crustacea : Decapoda : Alpheus)0 aGenetic ecological and behavioural divergence between two siblin  cAug  a1427-14370 v113 aExamination of genetic and ecological relationships within sibling species complexes can provide insights into species diversity and speciation processes. Alpheus angulatus and A. armillatus , two snapping shrimp species with overlapping ranges in the north-western Atlantic, are similar in morphology, exploit similar ecological niches and appear to represent recently diverged sibling species. We examined phylogenetic and ecological relationships between these two species with: (i) sequence data from two mitochondrial genes (16S rRNA and COI ); (ii) data on potential differences in microhabitat distribution for A. armillatus and A. angulatus ; and (iii) data from laboratory experiments on the level of reproductive isolation between the two species. DNA sequence data suggest A. armillatus and A. angulatus are sister species that diverged subsequent to the close of the Isthmus of Panama, and that haplotype diversity is lower in A. armillatus than in A. angulatus . Both species are distantly related to A. heterochaelis and A. estuariensis , two species with which A. angulatus shares some similarities in coloration. Ecological data on the distribution of A. angulatus and A. armillatus from two locations revealed differences in distribution of the two species between habitat patches, with each patch dominated by one or the other species. However, there was no apparent difference in distribution of the two species within habitat patches with respect to microhabitat location. Ecological data also revealed that heterospecific individuals often occur in close proximity (i.e. within metres or centimetres) where sympatric. Behavioural data indicated that these species are reproductively isolated, which is consistent with speciation in transient allopatry followed by post-divergence secondary contact. Our data further resolve taxonomic confusion between the sibling species, A. armillatus and A. angulatus , and suggest that sympatry in areas of range overlap and exploitation of similar ecological niches by these two recently diverged species have selected for high levels of behavioural incompatibility.1 aMathews, L., M.1 aSchubart, C., D.1 aNeigel, J., E.1 aFelder, D., L.  u<Go to ISI>://00017708690001601699nas a2200145   4500008004100000245016900041210006900210260000800279300001200287490000600299520118100305100001901486700001401505856003401519       2007                        eng d00aDescription of Harperalpheus pequegnatae, new genus, new species from the Gulf of Mexico and Atlantic coast of the southeastern USA (Crustacea, Decapoda, Alpheidae)0 aDescription of Harperalpheus pequegnatae new genus new species f  cDec  a455-4630 v53 aA new genus, Harperalpheus, gen. nov., is established for H. pequegnatae, sp. nov., on the basis of specimens collected from sandy subtidal sediments off Galveston, Texas, and Sapelo Island, Georgia, USA. The holotype female, the largest and most intact specimen of the type series, is ovigerous and bears an appendix masculina on the second pleopod. The new genus is characterised by conspicuous, robust, equal sized chelipeds, which distinguish it from other known sympatric alpheid genera that lack an articulated posteroventral plate on the sixth abdominal pleuron. Additional distinguishing features of Horperalpheus, gen. nov., are the sharply produced pterygostomial angle of the carapace, orbital hoods concealing the eyes in dorsal view and lacking extracorneal teeth, the distinct rostrum having a posteriorly extended ventrorostral. keel, and the third maxilliped bearing a uniquely bilobed lateral plate on the coxa and lacking an arthrobranch. While this new species is not readily allied to any presently known alpheid genus, it appears to have some affinities with Coutieralpheus Anker and Felder, 2005, Salmoneus Holthuis, 1955, and Parobetaeus Coutiere, 1896.1 aFelder, D., L.1 aAnker, A.  u<Go to ISI>://00025165450000800457nas a2200145   4500008004100000245005900041210005500100260002600155300001200181100001600193700001700209700002100226700001900247856004500266       2009                        eng d00aThe evolution of mating systems in decapod crustaceans0 aevolution of mating systems in decapod crustaceans  aBoca RatonbCRC Press  a121-1821 aAsakura, A.1 aMartin, J.W.1 aCrandall, K., A.1 aFelder, D., L.  uhttps://alpheidae.myspecies.info/node/1500575nas a2200169   4500008004100000245010300041210006900144260002600213300001200239100001800251700001700269700001900286700001500305700001900320700002100339856004500360       2009                        eng d00aPhylogeny of the infraorder Caridea based on mitochondrial and nuclear genes (Crustacea: Decapoda)0 aPhylogeny of the infraorder Caridea based on mitochondrial and n  aBoca RatonbCRC Press  a281-3051 aBracken, H.D.1 aDe Grave, S.1 aFelder, D., L.1 aMartin, J.1 aFelder, D., L.1 aCrandall, K., A.  uhttps://alpheidae.myspecies.info/node/18