204 FLABELLIFERA • SPHAEROMATIDAE 



tained genera and were replaced with current subfamily names by Bowman 

 (1981) and Iverson (1982), the latter providing diagnoses for all five sub- 

 families. Four of these are represented in the Caribbean area; the fifth, the 

 Tecticipitinae, contains only the single primarily Pacific genus Tecticeps. 



While the subfamilial status now appears to be resolved, many of the gen- 

 era still require unambiguous diagnoses. The work of Harrison (1984) on the 

 structure of the female broodpouch, with its various components of 

 oostegites, internal pouches, and anterior and posterior pockets (Figure 90), 

 along with the metamorphosis of the female mouthparts (see Figure 96) has 

 helped enormously to standardize the genera. Nevertheless, these features of 

 the female remain unknown in several genera. Further, with this stabilization 

 based on females, many problems of incorrect generic designation have been 

 uncovered. In this work, Harrison's generic diagnoses are followed as far as 

 possible. Where uncertainty exists, this is indicated. In some cases, we may 

 still be unaware of existing problems: future work will without doubt result in 

 the shifting of species to different genera, as well as in the creation of new 

 genera. 



Key to subfamilies of Sphaeromatidae 



1 . Pereopod 1 prehensile in both sexes; pereopod 2 prehensile only in S 



Ancininae 



Pereopods 1 and 2 ambulatory 2 



2. Pleopods 4 and 5 lacking branchial pleats Cassidininae 



Pleopods 4 and 5 with branchial pleats on endopods 3 



3. Pleopods 4 and 5 with branchial pleats on both rami . . . Dynameninae 

 Pleopods 4 and 5 with branchial pleats on endopods only 



Sphaeromatinae 



Subfamily Ancininae Tattersall, 1905 



DIAGNOSIS Body markedly dorsoventrally depressed. Cephalon fused me- 

 dially with pereonite 1. Pereopod 1 prehensile in 6 and 9. Pereopod 2 pre- 

 hensile in S only. Pleopods 4 and 5 similar, lacking branchial pleats. 

 Uropods uniramous. 



