Publications by authors named "Alison R Irwin"
Eyes within the marine gastropod superfamily Stromboidea range widely in size, from 0.2 to 2.3 mm - the largest eyes known in any gastropod.
View Article and Find Full Text PDFAbstractSea stars are a major component of the megabenthos in most marine habitats, including those within the deep sea. Being radially symmetric, sea stars have sensory structures that are evenly distributed along the arms, with a compound eye located on each arm tip of most examined species. Surprisingly, eyes with a spatial resolution that rivals the highest acuity known among sea stars so far were recently found in , a member of the deep-sea sea star order Brisingida.
View Article and Find Full Text PDFAll species within the conch snail family Strombidae possess large camera-type eyes that are surprisingly well-developed compared with those found in most other gastropods. Although these eyes are known to be structurally complex, very little research on their visual function has been conducted. Here, we use isoluminant expanding visual stimuli to measure the spatial resolution and contrast sensitivity of a strombid, Conomurex luhuanus.
View Article and Find Full Text PDFArticle Synopsis
- Members of the superfamily Stromboidea, which includes over 130 species with unique shell shapes and large eyes, play an important commercial role, especially the Strombidae family found in tropical and subtropical waters.
- This study introduces seven new mitochondrial genomes from different stromboid families, filling a gap in genomic data for those families that previously lacked such information.
- The research confirms the monophyly of Stromboidea, including the Xenophoridae family, while supporting the monophyly of Hypsogastropoda and rejecting the monophyly of Littorinimorpha based on morphological and molecular evidence.