60 ANTHURIDEA • HYSSURIDAE 



following pleopods, not operculiform. Pleonites 1-5 freely articulating, rela- 

 tively elongate. Pleotelson lacking statocysts. 



Key to genera of Hyssuridae 



1. Pleotelson not covered by uropodal exopods; maxillipedal rami basally 



free Kupellonura 



Pleotelson covered completely by uropodal exopods; maxillipedal rami 

 basally fused Xenanthura 



Kupellonura Barnard, 1925 



DIAGNOSIS Mandibular palp of three articles. Maxillipedal palp of five arti- 

 cles; large endite present. Pereopods 1-3 similar, propodi somewhat ex- 

 panded. Pereopods 4-7, carpi triangular. Pleonites 1-5 elongate, free, sube- 

 qual. Pleopods 1-5 similar. 



Kupellonura imswe (Kensley, 1982) 

 Figures 26, 27 



DIAGNOSIS 9 : 3.4 mm. Eyes present. Antennular flagellum of four articles. 

 Antennal flagellum of seven articles. Maxillipedal endite reaching to base of 

 article 3. Pereopods 1-3 similar; pereopod 1, carpus posterodistally acute; 

 propodus expanded, palm straight, unarmed; carpus triangular, free anterior 

 margin shorter than posterior. Pleonite 6 with middorsal incision in posterior 

 margin. Uropodal exopod, outer margin serrate, distally narrowly rounded; 

 endopod length twice greatest width. Telson widest at midlength, 

 posterolateral margin serrate, apically broadly rounded. 6: 2.7 mm. Eyes 

 larger than in 9. Mouthparts reduced. Pereopod 1, propodal palm armed 

 with row of eight fringed spines. 



RECORDS Carrie Bow Cay, Twin Cays, Glover's Reef, Belize, 0-6.0 m; 

 Montego Bay, Jamaica, 1 m. 



Xenanthura Barnard, 1925 



DIAGNOSIS Mandibular palp of single article. Maxillipedal rami fused; ar- 

 ticulations of palp articles obscure. Pereopods 1-3 similar. Pereopods 4—7, 

 carpi triangular. 



