New shell acquisition in the hermit crab,Pagurus geminus

1983 ◽  
Vol 1 (1-2) ◽  
pp. 91-100 ◽  
Author(s):  
Michio Imafuku
Keyword(s):  
Hermit Crab ◽  
Shell Acquisition

The shell-acquisition behaviour of the bivalve-using hermit crab Porcellanopagurus nihonkaiensis Takeda, 1985 (Decapoda, Anomura, Paguroidea)

Crustaceana ◽  
2018 ◽  
Vol 91 (4) ◽  
pp. 509-515
Author(s):  
Akihiro Yoshikawa ◽  
Morihiko Tomatsuri ◽  
Akira Asakura
Keyword(s):  
Hydrostatic Pressure ◽  
Hermit Crab ◽  
Hermit Crabs ◽  
Shizuoka Prefecture ◽  
Almost All ◽  
Shell Acquisition

Almost all species of hermit crabs inhabit dead gastropod shells; however, species of some genera have evolved to inhabit bivalve or patelliform shells. It has been assumed that these species carry their shells using uropodal rasps and the hooked dactyls of their fourth pereopods, although no detailed description of the shell acquisition behaviour of those species has previously been documented. We have therefore observed the shell acquisition behaviour of Porcellanopagurus nihonkaiensis Takeda, 1985, which was collected by dredge at Shimoda, Shizuoka Prefecture, Japan. Our observation suggests that the shell is fixed in place by only the uropodal rasps in combination with hydrostatic pressure in the telson.

Adaptation in a Peripheral Habitat: Intraspecific Variation in Osmoregulatory Traits in an Estuarine Hermit Crab (Pagurus minutus)

2014 ◽  
Vol 33 (1) ◽  
pp. 53-59 ◽  
Author(s):  
Kenji Yoshino ◽  
Tsunenori Koga ◽  
Koichi Taniguchi ◽  
Rei Tasaka
Keyword(s):  
Intraspecific Variation ◽  
Hermit Crab
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