Crabs have panoramic compound eyes, which can show marked regional specializations of
visual acuity. These specializations are thought to be related to the particular features of the …

The Decapoda is the largest order of crustaceans, some 10,000 species having been
described to date. The order includes shrimps, lobsters, crayfishes, and crabs. Most of these …

The organisation of the visual system in semi-terrestrial crabs is related to the three-
dimensional structure of the environment (;;, b;). In species that Eve in flat habitats-like sandy …

We used in vivo optical techniques to study compound eye organisation and the extent of
eye stalk development in 17 species of semi-terrestrial crabs (Brachyura). 2.'Narrow …

We studied variations in the optical properties of the compound eyes of Uca lactea
annulipes using in vivo optical and histological techniques. The distribution of resolving …

We describe the structural organization of the ommatidium in the compound eye of the
fiddler crab, Uca vomeris, at both the light‐and the electron‐microscopy levels. We pay …

Pitch and roll eye movements of three species of crabs (Heloecius cordiformis, Mictyris
longicarpus, Pachygrapsus marmoratus) were recorded in response to visual stimuli. 2. The …

In the crab, Hemigrapsus sanguineus, increase in body size follows an isometric growth
pattern. All parameters such as eye stalk length, number of ommatidia, diameters of …

Visual systems play a vital role in guiding the behaviour of animals. Understanding the
visual information animals are able to acquire is therefore key to understanding their visually …

In specimens of Halicarcinus lacustries of 6 mm body length and width, the two compound
eyes each comprise about 400 ommatidia, and anatomically resemble those of other …