John P. Hoover, Hawaii
Info
Corallianassa oahuensis is a ghost crab endemic to the eastern Pacific waters around Hawaii that can be observed by snorkelers in fairly shallow waters.
The carapace has paired orange spots on its anterodorsal surface; the rest of the carapace and the pleon are white.
The third segment of the antennular stalk is orange, and the flagella are orange-red.
The segments of the antennal stalk are marked with orange spots; the flagellum is also orange-red.
Maxilliped 3 is also marked with orange spots.
The segments of the chelipeds and carpi display orange spots, which are concentrated along the upper edge.
The propodes are mostly orange, with a white spot in the center; the fingers are orange,
and pereopods 2 and 3 also have orange spots on the upper edges of the carpus and propodus.
Pereopods 4 and 5 are white.
The rostrum is curved upward, and the carapace measures up to 12 mm.
Diet:
The exact dietary components of the ghost crab are unknown; based on the diet of Callianassa tyrrhena, the majority of its diet is thought to consist of decaying plant material, seagrass, algae, and organic debris (detritus) that sink and settle in the sediment.
However, a partially carnivorous diet cannot be ruled out.
Corallianassa oahuensis is commonly found in burrows among sand and rubble.
We would like to extend our sincere thanks to John P. Hoover, Hawaii, for his wonderful photos.
Synonyms:
Callianassa (Callichirus) oahuensis Edmondson, 1944 · unaccepted > superseded combination
Callianassa oahuensis Edmondson, 1944 · unaccepted > superseded combination
Glypturus oahuensis (Edmondson, 1944) · unaccepted > superseded combination
The carapace has paired orange spots on its anterodorsal surface; the rest of the carapace and the pleon are white.
The third segment of the antennular stalk is orange, and the flagella are orange-red.
The segments of the antennal stalk are marked with orange spots; the flagellum is also orange-red.
Maxilliped 3 is also marked with orange spots.
The segments of the chelipeds and carpi display orange spots, which are concentrated along the upper edge.
The propodes are mostly orange, with a white spot in the center; the fingers are orange,
and pereopods 2 and 3 also have orange spots on the upper edges of the carpus and propodus.
Pereopods 4 and 5 are white.
The rostrum is curved upward, and the carapace measures up to 12 mm.
Diet:
The exact dietary components of the ghost crab are unknown; based on the diet of Callianassa tyrrhena, the majority of its diet is thought to consist of decaying plant material, seagrass, algae, and organic debris (detritus) that sink and settle in the sediment.
However, a partially carnivorous diet cannot be ruled out.
Corallianassa oahuensis is commonly found in burrows among sand and rubble.
We would like to extend our sincere thanks to John P. Hoover, Hawaii, for his wonderful photos.
Synonyms:
Callianassa (Callichirus) oahuensis Edmondson, 1944 · unaccepted > superseded combination
Callianassa oahuensis Edmondson, 1944 · unaccepted > superseded combination
Glypturus oahuensis (Edmondson, 1944) · unaccepted > superseded combination
