.1. A'. 1'. ///// n,-<;ijni,l Crustacea ( Bermu 



lion and range i>f the species. In 1898, one "I' m\ sons, < 

 S. Yen-ill, who was of tin- Yale party, made notes ,,\\ the hal.n I 



colors <f the C'nistaeea. I am indebted to him for Mich notes, m:m\ 

 of which are here ulili/ed, ami ha\e his initials appended. 



Another SOD, A. lhatt Yerrill, made a large collect ion of < 'nM a 

 CCS in .March, I'.ml, before my arrival at llermuda. He foiiml a 

 numluT of interesting additions to the fauna. I am also indebted 

 to him for the photographs and drawings used in this paper, ami 

 also tor a number of colored figures and various notes m;ide on the 

 colors and habits of a number of species. To .Miss M. .1. I\at hbiin, 

 whose nomenclature T have generally followed, I am indebted foi- the 

 ident ih'cation of many <>f the smaller and more critical specimens, 

 and for the loan of others. From her papers I have also borrowed, 

 with a few alterations, some of the analytical tables of species, 

 genera, and higher groups. 



1 am also indebted to Professor S. I. Smith for numerous com- 

 parative measurements of a number of species, made by him several 

 years ago for another purpose. 



Many of the crabs have colors that are highly protective by clay : 

 others have colors that are not protective by daylight, but are 

 highly so at night, in moonlight, or twilight. They afford an excel- 

 lent field for studies of this kind. Although' these Crustacea are 

 numerous in Bermuda, there are many species that are seldom taken 

 by inexperienced collectors, because of their peculiar habits. Many 

 are found concealed beneath large rocks or masses of dead corals, 

 which must be turned over to obtain them. This is particularly true 

 of most of the Pilumnidae, and of Mlt.liro.'- f<>n-i:ps, Per<-n<>n />!<inix- 

 ft! in a in, etc. Some live regularly in eroded holes in masses , ,f coral 

 or limestone, like many species of Al/>lnn^ and the common (J<>n- 

 dacti/lux (Krstedi. The rare crab, A'/ </-/////.< ///'////</////,//>/.-,, was 

 found only by breaking up such rocks. Several species are peculiar 

 to the mangrove swamps, and live chiefly among the tangled roots 

 of the mangroves, where it is hard to capture them. The hand- 

 somely colored (rottiojixtx rrin ,it<itu.s has this habit, as well a- some 

 -pecies of S?*<ii'i,in, Pacfii/</i-<i/>xnx, KI/JHI, ,:>/>, nx, etc. The land- 

 crabs, (;<;<-itr<-!inrx and Con/ito/iKi, burrow deeply in the earth, and 

 the same is true of O<->//>o</i arenarius, //'/</' <"/>< /'-'-, etc., which 

 inhabit -andy beaches. These and many others are mainly nocturnal 

 in their habits and can s ( , mr times In caught out of their burrows, in 

 the night by means of torches or lanterns, especially in summer. 

 The great C<ii-<linni,m i/mm/nn/i 1 is seldom taken here in any other 



