140 FLABELLIFERA • CIROLANIDAE 



Natatolana gracilis (Hansen, 1890) 



Figure 62 « 



DIAGNOSIS S 8.0 mm. Antennule short, not reaching distal end of antennal 

 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. S 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- 



