PART II. CRUSTACEA ANOMALA OR ANOMURA, 



INTRODUCTION. 



The Anomala included in this Memoir are the Anomala of DeHaan and of 

 Boas, which differ from the Anomala or Anomura of other monographers as 

 follows : — 



From the Anomura of Milne Edwards in the exclusion of the Dromidm, 

 Homolidae, lianinidse, and Pactolus, and in the inclusion of the Galatheidae. 



From the Anomoura of Dana in the exclusion of the Anomoura superiora. 

 From the Anomura of Henderson in the exclusion of the Dromidea and 

 Baninidea. 



And they correspond with the Anomoura Schizosomi of Stimpson. 



With Boas, I regard the Baninidea as true Cr.tbs allied to the Oxystomes, and the Dromidea as a section of 

 the Brachyura ; and 1 follow Bourier in the opinion that the immediate affinities of the Dromidea are, not with 

 the Anomala, but with the Macrnrous Nephropsidx ( = Homaridx). 



The Anomala here described were dredged by the Royal Indian Marine 

 Survey Ship " Investigator," in deep water, and within the geographical limits 

 already mentioned. 



They number 52 species, of which only 12 can be identified with species 

 found in other regions, several of these being forms that are well known to 

 have a wide range in abyssal depths. 



Only 8 species were dredged in the great deep, namely : — 



There can be no doubt that these all came from the bottom. 



Most of the new species discovered by the " Investigator " have been 

 figured in the Illustrations of the Zoology of the Investigator for the years 

 1895-1901, and have been described in the following papers : — 



