64 ANTHURIDEA • PARANTHURIDAE 



Family Paranthuridae Menzies and Glynn, 1968 



DIAGNOSIS Mouthparts together forming somewhat elongate cone adapted 

 for piercing and sucking. Mandible with styliform incisor, lacking lamina 

 dentata and molar. Maxilla slender, styliform, distally serrate. Maxilliped 

 elongate; number of palp articles usually reduced. Pereopod 1, or pereopods 

 1-3 subchelate. Pleopod 1 exopod operculiform. Pleonites short, free or 

 fused. Pleotelson with single basal statocyst, or lacking statocyst. 



Key to genera of Paranthuridae 



1 . Pereopod 7 lacking in adult 2 



Pereopod 7 present in adult 3 



2. Eyes present Colanthura 



Eyes absent Curassanthura 



3. Antennular and antennal flagellum of more than 10 



articles Accalathura 



Antennular and antennal flagella with fewer than 10 articles 4 



4. Antennal flagellum a single (rarely two or 3) flattened article; 



maxillipedal palp of one or two articles Paranthura 



Antennal flagellum of seven articles; maxillipedal palp of three articles 

 Virganthura 



Accalathura Barnard, 1925 



DIAGNOSIS Eyes present. Antennular and antennal flagella multiarticulate, 

 each of more than 10 articles. Mandibular palp of three articles. Maxillipedal 



Key to species of Accalathura 



1. Uropodal exopod elongate-narrow; endopod length twice basal width 



crenulata 



Uropodal exopod ovate, apically subacute; endopod length 1.5 times 

 basal width setosa 



