56 CLASSIFICATION OF THE ANIMAL KINGDOM. 



(Spence Bate and Westwood, History of the British Sessile-eyed Crustacea, 

 1868 ; Kroyer, Gronlands Amphipoder beskrcevne, Kon. Danske Selsk. 

 Naturvkl. Afhandlgr., 1836.) 



Pig. 51. Amphipoda. A, Talitrus locusta, the " Sandhopper," enlarged. B, Gammanis 

 locusta, enlarged about four times. (After Spenee Bate and Westwood.) 



ORDER III. ISOPODA. 



Section 1. Anisopoda. 



Fam. a. Tanaidse. Tanais. 

 Fam. &. Anthuridae. Anthura. 

 Fam. c. Anceidse. Anceus. 



Section 2. Euisopoda. 



Fam. a. Cymothoidse. Cymothoa, &ga, Serolis (fig. 52). 



Fam. b. Sphseromidse. Sphceroma. 



Fam. c. Idoteidse. Idotea (fig. 52), Arcturus (fig. 52). 



Fam. d. Munnopsidse. Munnopsis. 



Fam. c. Asellidae. Asellus, Munna, Limnoria (Gribble). 



