6 - Sphaeromatidae::“Cute As Buttons”

218 FLABELLIFERA • SPHAEROMATIDAE
nounced. Uropodal rami lamellar. 8 pleopod 2 with copulatory stylet
basally narrow, reaching to or just beyond distal margin of endopod.
Ischyromene barnardi (Menzies and Glynn, 1968)
Figure 95D
DIAGNOSIS 6 4.5 mm, 9 3.7 mm. Both sexes lacking processes on pereon
and pleon. Accessory unguis of pereopods often bifid. Pleopod 3, exopod of
single article. Uropodal rami lamellar. 6: Pereonite 7, posterior margin
bilobed. Penes short, separate to base.
RECORDS Puerto Rico, intertidal.
Paracerceis Hansen, 1905b
DIAGNOSIS Pleopod 3 exopod with transverse suture in distal half. Pleon
with two long sutures reaching to posterolateral margin. 6: Penial rami
short, separate. Pleotelson with basal area strongly vaulted; deep posterior
notch sometimes having denticles on inner margins, and/or median tooth at
base of notch. Uropodal endopod short, fused with sympod; exopod elongate,
club shaped. 9: Mouthparts metamorphosed. Mandible fused with
cephalon. Broodpouch of four pairs of oostegites, three posterior pairs over­
lapping. Brood retained in internal pouches. Uropodal rami subequal, lamel­
lar. Pleon usually less ornamented than in