6 - Sphaeromatidae::“Cute As Buttons”

140 FLABELLIFERA • CIROLANIDAE
Natatolana gracilis (Hansen, 1890)
Figure 62
DIAGNOSIS 8 8.0 mm. Antennule short, not reaching distal end of antcnnal
peduncle. Antenna reaching posteriorly to pereonite 4. Pleopod 2, copulatory
stylet of endopod cylindrical, bowed, distally rounded. Pleotelson with ob­
tuse apex, with slight transverse indentation near anterior margin.
RECORDS Probably St. Thomas, U.S. Virgin Islands; off Sombrero Light,
Florida, 100-120 m.
Northern Brazil, 7-85 m.
REMARKS Hansen (1890) indicated some uncertainty about the exact type
locality, but thought it likely to have been St. Thomas. Koening (1972) re­
corded this species from several localities off northern Brazil, but did not
illustrate her material.
Politolana Bruce, 1981
DIAGNOSIS Frontal lamina slender, flattened; clypeus flattened. Antennal
peduncular articles 3—5 subequal. Pereopods 1—3 with ischium and merus
anterodistally produced. Pereopods 4—7 with ischium, merus, and carpus
flattened. 6 pleopod 2 with copulatory stylet inserted basally on endopod.
Endopod of pleopod 5 lacking marginal setae. Pleonite 5 overlapped laterally
by pleonite 4. Uropodal endopod with distal emargination; exopod slender,
elongate; sympod produced along mesial margin of endopod.
Key to species of Politolana
1. Uropodal endopod broad distal to emargination, margin obliquely
truncate; coxae of pereonites 2—6 with impressed line impressa
Uropodal endopod distal to emargination somewhat narrowed, margin
evenly convex; coxae of pereonites lacking impressed line polita
Politolana impressa (Harger, 1883)
Figure 63A,B
DIAGNOSIS 6 and 9 up to 27 mm. Frontal lamina slightly expanded ante­
riorly. Coxae of pereonites 2-6 with impressed oblique line. Uropodal endo-