6 - Sphaeromatidae::“Cute As Buttons”

60 ANTHURIDEA • HYSSURIDAE
following pleopods, not operculiform. Pleonites 1-5 freely articulating, rela­
tively elongate. Pleotclson 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.