BULLETIN 129, UNITED STATES NATIONAL MUSEUM 



The width of the segments of the chelipeds and legs is measured 

 at the widest part. 



The length of the immovable finger is measured from the tip to 

 the extremity of the sinus between the fingers. 



Character of bottom 



Under ''Material examined," the abbreviations indicating the 

 character of the bottom are those employed by the Bureau of 

 Fisheries. Nouns begin with a capital, adjectives with a small letter. 



S sand 



sctrd scattered 



sft soft 



Sh shells 



bk black 



br brown 



brk broken 



bu blue 



Co coral 



crs coarse 



dk dark 



fne fine 



For foraminifera 



G gravel 



Glob globigerina 



gn green 



Grs 



grs}- grassy 



gy gray 



hrd hard 



Ige large 



It light 



M mud 



Oz ooze 



P pebbles 



Ptr pteropod 



R rock 



rd red 



Rf reef 



rky rocky 



shy shelly 



sm small 



Sp specks 



St stones 



stky sticky 



vol volcanic 



W seaweed 



wh white 



y\ yellow 



Additional abbreviations and notes 



In the synonymy an attempt has been made to give all the different 

 names or combinations which have been used, but not all the references 

 to a species. 



In the lists under ''Material examined" a number in parenthesis 

 following an indication of a specimen or specimens denotes a cata- 

 logue number of the United States National Museum unless otherwise 

 indicated. The following abbreviations are used: 



Amer. Mus. = American Museum of Natural History, New York. 



B. S. N. H. = Boston Society of Natural History. 



Cal. Acad. =: Museum of the California Academy of Sciences, San Francisco. 



M. C. Z. = Museum of Comparative Zoology, at Harvard University. 



Mus. S. U. I. = Museum of the State University of Iowa. 



Phila. Acad. = Museum of the Philadelphia Academy of Natural Sciences. 



Y. U. M. = Yale University Museum. 



y=young. 



The words "U. S. Fisheries" should be understood before 

 "Str. Albatross;' "Str. Fish Hau-lc,'' or '"Sch. Grampus:' 



In the same lists have been entered, besides specmiens in the 

 National Museum, many types examined elsewhere, as well as such 

 specimens from other collections as increased our knowledge of the 



