The Table printed above shows the months in which ovigerous 

 females of the various species were taken. The Lobster, which 

 may be found in the ovigerous condition at any time of the 

 year, is not included. 



The next table shows the distribution of those species which 

 are found outside the Atlantic. 



The third table shows the Atlantic distribution of each species. 

 It will be seen that nine extend northwards beyond the Arctic 

 Circle, and eighteen are found as far south as the Mediterranean. 



A list of the papers to which references are given will be 

 found at page 105, and an index to the genera and species at 

 page 111. 



I am glad to have this opportunity of expressing my indebted- 

 ness to Dr. Caiman for his courtesy and patience in replying to 

 my numerous inquiries, and also to the Rev. T. R. R. Stebbing, 

 Dr. Allen of the Marine Biological Association, Dr. H.J. Hansen 

 and Dr. Lundbeck of Copenhagen, and Prof. Steuer of Inns- 

 bruck, for the loan of specimens. 



EXTRA-ATLANTIC DISTRIBUTION. 





m 



03 



IS 



o 

 Q 



Id 





West Coast of 



America : San Diego 



to Ecuador 



Polycheles typhlops .... 

 Polycheles sculptus .... 





X 



X 







X 





X 



Polycheles nanus 









X 



Polycheles granidatiis . 







X 

 X 



1 







y 



Nephropsis atlantica . . • . 

 Uroptychus nitidns var. concolor 

 Galathea strigosa .... 

 Munidopsis tridentata 

 Calocaris Macandreae . . . 



? 



X 



X 



X 



X 

 X 



? 





