Labrumoides vibrissa (Arthropoda: Pycnogonida), new callipallenid genus and new species from north Western Australia.

Specimens housed in the Australian Museum assigned to the genus Stylopallene are reviewed on the basis of their questionable geographic locations in the tropical waters of north Western Australia. Re-examination of those specimens shows only a superficial resemblance to the genus Stylopallene. The new genus Labrumoides gen.

Pycnogonids (Arthropoda, Pycnogonida) from the Southwest Indian Ridge.

This report addresses sixty-two deep-sea pycnogonid specimens collected by the Southwest Indian Ocean Seamounts Expedition, November 7 to December 21, 2011 on-board the British research vessel R.S.S.

A reassessment of the pycnogonid genus Cheilopallene (Arthropoda, Callipallenidae) with description of a new species from Papua New Guinea.

The genus Cheilopallene is reviewed. Three species are assigned to species incertae sedis pending further analysis. Specimens from Lizard Island, Queensland, previously identified as C.

A revision of the callipallenid genus Pseudopallene Wilson, 1878 (Pycnogonida, Callipallenidae).

Analysis of three northern hemisphere Boreal-Arctic species of Pseudopallene has shown that those species are morphologically distinguishable from their congeners in Australian waters. The holotypes of Australian species Pseudopallene laevis, Pseudopallene ambigua and Pseudopallene harrisi are compared with each other and with additional material from southern Australia. Sixteen species of Pseudopallene are assigned to a new genus Meridionale.

Quantitative trait locus mapping of genes under selection across multiple years and sites in Avena barbata: epistasis, pleiotropy, and genotype-by-environment interactions.

The genetic architecture of variation in evolutionary fitness determines the trajectory of adaptive change. We identified quantitative trait loci (QTL) affecting fitness in a mapping population of recombinant inbred lines (RILs) derived from a cross between moist- and dry- associated ecotypes of Avena barbata. We estimated fitness in 179 RILs in each of two natural environments in each of 4 years.