The eyes of two talitrid amphipods: differences in structure may reflect different behaviours

作者：Mezzetti Marco C^*; Gambineri Simone; Scapini Felicita

来源：Marine and Freshwater Behaviour and Physiology, 2010, 43(2): 127-133.

DOI：10.1080/10236241003786865

• crustaceans
• amphipods
• talitrids
• compound eyes
• morphology
• structure
• function

In this study, compound eyes of two species of talitrid amphipods - Talorchestia spinifera from Asilah (Atlantic coast of Morocco) and Talitrus saltator from Oued Laou (Mediterranean coast of Morocco), Maremma Regional Park and Palizzi Marina (Tyrrhenian and Ionic coasts of Italy) - were compared. Both T. spinifera and T. saltator possess compound apposition eyes, with ommatidia separated by a connective coating which is thicker in T. spinifera and incomplete in T. saltator. The lenses of each ommatidium are crossed by a vesicular structure (previously undescribed) that differs between the two species for its whole orientation across the eye. This different arrangement of the structure in the two species suggests a number of specific adaptations to their visual habitats. These adaptations are discussed.

• 出版日期2010