Vol. XVIII, pp. 9-10 January 20, 1 905 



PROCEEDINGS 



OK THK. 



BIOLOGICAL SOCIETY OF WASHINGTON 



FURTHER CHANGP:8 IN CRUSTACEAN 

 NOMENCLATURE. 



BY HARRIET RICHARD.SON. 



Tlu' changes in nunK'nclatuiv which liavc hccn made ))y Miss 

 Rathl)un * necessitate further remarks in regard to the fate of 

 the isopod genera Idotca Fahricius 170S and Ligia Fabricius 

 17<)S. 



It lias been pointed out in the paper referred to a])()ve that 

 Zc/otea Fa hricins 1798 is preoccupied, Idotea Weber 1795 1 having 

 lieen previously used for a genus of crabs. It appears that in 

 1796 in the "Index Alphabeticus " to the " Entoniologia 

 Systematica emendata et aucta," Fabricius mentions the genus 

 Lhitlicd S. (p. S()), the letter S n^ferring to the " Supple- 

 mentum.'' IdatJi/'a here is a ;/o;;/('// ;m/^//m;/, the description of 

 the genus appearing two years later witli the different spelling 

 J(li)f('ti. [(Jotlira in tlie index umlduhtedly refers to Idotca in 

 the"Supplementum "and ai<Id<>tlii'(i\s the correct spelling accord- 

 ing to the dei-ivation of the woi'd, it .^eenis more than likelj^ 

 tliat the omission of the lettei- // fi-oiii Idoflica in the " Supple- 

 mentum " wasan error. Mori'over in the " Index Alphabeticus " 

 of the " Supplementum," published in 1799, we find again the 



*Some change.? in Crustacean Nomenclature, Proc Biol. Soc. Washington, XVII, pp. 

 169-172, 1(101. 



t Nomenclator entomologicus secundum Kntomologiam systematicam ill. Fabricii 

 adjectis speciebus recens detectis et varietatibus, Kiel and Hamburg, 1795. 



2— Proc. Biol. Soc. Wash., Vol.. XVIII, 190.5. (9) 



