ICEYLON PEARL OYSTER FISHERIES- 1906-StJPPLEMENTARY REPORTS, No. XXXV.] 



REPORT 



ON THE 



ANOMURA 



COLLECTED BY 



PROFESSOR HERDMAN, AT CEYLON, IN 1902. 



BY 



T. SOUTHWELL, A.R.C.Sc., 



ASSISTANT IN ZOOLOGICAL DEPARTMENT, UNIVERSITY OF LIVERPOOL, 



[WITH TEXT-FIGUKES.] 



THJS collection of Anomura, entrusted to me for description by Professor HERDMAN 

 whose kind help in many ways I desire to acknowledge here comprises 48 species, 

 distributed amongst 22 genera. Two of these species, viz., Munida alcocki and 

 Porcellana hornelli, are new to science, and a number of others are new to the marine 

 fauna of Ceylon, and add considerably to our knowledge of the geographical distribution 

 of the group. 



The Anomuran fauna of this region of the world has been made known chiefly 

 through the descriptions (1) by HENDERSON of the material collected in the Gulf of 

 Manaar by THTJRSTON, and (2) by ALCOCK of the collections made during the cruises 

 of the " Investigator," and contained in the Indian Museum. In all, about 52 species 

 have now been recorded from the seas around Ceylon, and the present collection adds 

 23 more species to that list, in addition to the two new species cited above. The 

 species collected by the " Investigator" and described by ALCOCK are, in many cases, 

 deep-water forms, while the following is a list of the collection made by THURSTON, 

 and described by HENDERSON (8), from shallow water in the northern part of the 

 Gulf of Manaar, the exact locality where the bulk of the present collection was 

 obtained. It will be of interest for comparison with the list in the pages that 

 follow : 



2 E 2 



