72 DR. W. E. OOLLINGK ON THE 



IV. Synoptic Table of the Genera dealt with. 



A. Coxal plates distinct ou the 3 posterior segments of the 



mesosome. 

 a. Lateral margins of the cephalon entire. Eyes dorsally 

 situated. 

 b. Flagellum of antennre single-jointed, 

 c. Metasome composed of 3 segments. 



d. Maxillipedes with a 3-jointed palp Symmius, Richardson. 



B. Coxal plates distinctly separated on 2nd to 7th segments of the 



mesosome. 

 a. Lateral margins of the cephalon cleft. Eyes dorsally 

 situated. 

 b. Flagellum of antenna? multiarticulate. 

 v. Metasome composed of 4 segments and 1 pair of 

 sutures. 



d. Maxillipedes with a 3-jointed palp Chiridotea, Harger. 



e'. Metasome composed of 5 segments. 



d'. Maxillipedes with a 5-jointed palp Wesidotea, Richardson. 



a'. Lateral margins of the cephalon entire. Eyes situated 

 dorso-laterally. 

 c". Metasome composed of 3 segments and 1 pair of 



sutures Pentidutea, Richardson. 



c'". Metasome composed of a single segment and 3 pairs 



of sutures Qlypticlotea, Stebbing. 



Paridotea, Stebbing. 

 c'. Metasome composed of 3 segments and 1 pair of 

 sutures. 



d". Maxillipedes with a 4-jointed palp Idvtea, Fabricius. 



c". Metasome composed of a single segment and 3 pairs 



of sutures Euidotea, Oolliuge. 



b' . Flagellum of antennae siugle-jointed. 



c" . Metasome composed of a single segment Erichsonella, Benedict. 



C. Coxal plates not distinct on any mesosomatic segments. 



a. Lateral margins of the cephalon entire. Eyes situated 

 dorso-laterally. 

 b. Flagellum of antenna; rudimentary. 



c. Metasome composed of a single segment and 1 pair of 

 sutures. 



d. Maxillipedes with a 3-jointed palp Edutiu, Guerin-Men. 



b' . Flagellum of antennae multiarticulate. 



c', Metasome composed oi a single segment and 1 pair of 



sutures Synidotea, Larger. 



