FLABELLIFERA • CIROLANIDAE 123 



REMARKS Of the many recent publications on the cirolanids, the most com- 

 prehensive is that of Bruce (1986) on the cirolanids of Australia. Botosa- 

 neanu, Bruce, and Notenboom (1986) tabulate all the known troglobitic 

 cirolanids of the world. 



Key to subfamilies of Cirolanidae 



1. Clypeus projecting; pleonite 5 with free lateral margins (except in 



Xylolana) Eurydicinae 



Clypeus flattened, not projecting; pleonite 5 lacking free lateral margin, 

 overlapped by pleonite 4 2 



2. Pereopods 1—3 with ischium and merus not anterodistally produced; 



antennal peduncular articles 4 and 5 subequal; secondary unguis 



present on pereopodal dactyli Cirolaninae 



Pereopods 1-3 with ischium and merus anterodistally produced; 

 antennal peducular articles 3 and 4 subequal; no secondary unguis 

 on pereopodal dactyli Conilerinae 



Subfamily Cirolaninae Dana, 1852 



DIAGNOSIS Frontal lamina short, flat. Clypeus flattened, not projecting. 

 Antennal peduncular articles 4 and 5 subequal, longer than articles 1-3. 

 Pereopods with secondary unguis on dactyli. Penes reduced or absent. 

 Pleonite 5 always overlapped by pleonite 4. Pleopod 2 in <5 with copulatory 

 stylet articulating basally. 



Key to genera of Cirolaninae 



1. Pleopods having accessory branchial filaments Bathynomus 



Pleopods lacking accessory branchial filaments 2 



2. Pleopod 1 operculiform 7 



Pleopod 1 not operculiform 3 



3. Pleopods 3-5, endopods lacking, or with very few, marginal setae ... 4 

 Only endopod of pleopod 5 lacking marginal setae Cirolana 



{continued) 



