ZOOLOGY. ARTHROPODA. 149 



mangrove, especially in the shades of yellow and red, renders 

 the animal difficult of detection, and often at a distance of only 

 a few feet, buried among the fallen leaves, these agile creatures 

 escaped observation, even when attentively sought after. We 

 have here one of the most remarkable instances of protective 

 coloring, or semi-mimicry, with which I am acquainted. 



Sesarme cinerea. Bosc. 



Numerous specimens, from the beach of Flatts Village. 

 The species was seen almost everywhere scampering over the 

 rocks. 



Calappa fiammea, Herbst. 



A single male individual obtained through purchase. Spe- 

 cies previously recorded from the Bermudas. 



ANOMURA. 



Petrolisthes armata, Gibbes. 



Five specimens, obtained on the beach of Flatts Village, 

 which appear to be identical with the form described under 

 this name from Florida (Proc. Amer. Assoc., 1850, p. 190). 



Cenobita Diogenes, Latr. 



A number of living specimens obtained at Wistowe, opposite 

 Flatts Village, and kindly presented to us by Miss Edith 

 Allen, daughter of the American Consul. Most of the animals 

 are still living (July), and apparently flourishing, twelve 

 months after their capture. The shells occupied by the 

 largest' individuals are those of Natica catcnoides. 



Calcinus obscurus, Stimpson. 



Several specimens obtained on the beach of Flatts Village. 



Clibenarius (Pagurus) tricolor, Gibbes. 



Numerous on the beach of Flatts Village and at the St. 

 George's Causeway ; under stones, etc. 



MACRURA. 



Palinurus Americanus, Lamk, 



