51 



JEgeo7i cataphradus is said to be common in the Medi- 

 terranean, at a distance from the shore, and in depths of 

 20-30 fathoms. Miers reports it " with scarcely any doubt," 

 from Goree Island, Senegambia. Its range is now extended 

 to the Cape. The specimens, two of which measured each an 

 inch and three-tenths or about 33 mm , were taken " between 

 Cove Rock and Hood Point near East London, 33*^ 5 ' 45 " S., 

 27'' 52' 45" E., by shrimp-trawl, at 40 fathoms depth, on 

 bottom of sand, shells and mud." 



ISOPODA. 

 FaM. : IDOTEIDAE. 



1829. Idoteides (part). Leach in Latreille, Regne Animal, 



Cuvier, v. 4, p. 138. 

 1840. Idoteides fpart), Milne-Edwards, Hist. Nat. Crust., 



V. 3, p. 121. 

 1843. Idoteidea, Krauss, Siidafrik. Crust., p. 61. 



1852. Idofaeidae, Dana, Amer. Journ. Sci., Ser. 2, v. 14, 



p. 300. 



1853. Idotaeidae, Dana, L". S. Expl. Exp., v. 13, Crust., 



pp. 697, 143b. 

 1867. Idoteidae, Bate and Westwood, Brit. Sess. Crust., 



V. 2, p. 375. 

 1876. Idoteidae, Miers, Catal. New Zealand Crust., p. 91. 



1880. Idoteidae, Harger, U.S. Fish and Fisheries Report for 



1878, pt. 6, p. ^:,i^. 



1 88 1. Idoteidae, Miers, J. Linn, Soc. London, v. 16, p. 4, 

 [893. Idoteidae, Stebbing, History of Crustacea, p. 372. 



! 894-5. Idoteidae, Dollfus, Feuille des Jeunes Naturalistes, 

 Ser. 3, Annee 25, No. 289, p. i, No. 292, p. i. 



1897. Tdotheidae, Sars, Crustacea of Norway, v. 2, p. 78. 



1897. Idotheidae, Sars, Caspian Crustacea, Annuaire Mus. 

 Zool. Ac. Imper. St. Petersbourg, Extr. p. 21. 



1899. Idoteidae, Harriet Richardson, Pr. U.S. Mus., v. 21, 

 p. 842. 



The typical genus was called Idotea by J. C. Fabricius 

 when he instituted it in 1798 in his Supplementum, p 302. 

 An index to the Supplementum, published in 1799, gives the 

 name as Idot/iea. The older spelling is also the one that has 

 been the more generally adopted. ' 



Notwithstanding the strong resemblance outwardly among 

 species of this family, authors have found it expedient to 

 distribute them over several genera. As usually happens 

 when superficial likeness is striking the separation of similar 

 forms has not met with universal acceptance, and some of the! 

 genera have been discarded as needless. But renewed 



