Biogeographic distribution

Calcinus guamensisis a tropical coastal hermit crab. It seems to have a rather wide spread distribution, it has been documented in following areas:

• Mariana Islands (Wooster 1984), this is where the species was first described     
• Indonesia (Morgan 1991)
• Cocos islands (Morgan 1991)        
• Christmas island (Morgan 1991)        
• Taiwan (Poupin & McLaughlin 1998)        
• French Polynesia (Poupin & McLaughlin 1998)        
• Lord Howe Island (Poupin et al. 1996)
• Northern Territory, Australia (Poupin et al. 1996)        
• Queensland coastline (Poupin et al. 1996)
• Western Australia coastline (Poupin et al. 1996)        
• Hawaii (Poupin et al. 2003)
• Bonin Islands (Shih & Yu 1995)        
• Southern Japan (Miyake 1956), it is thought that Miyake (1956) confused Calcinus guamensis with Calcinus latens      
• Vietnam (Forest 1958), it is though that Forest(1958) confused Calcinus guamensis with Calcinus vachoni