232 FLABELLIFERA • SPHAEROMATIDAE 



RECORDS Cape Catoche, Yucatan, Mexico, 48 m. 



REMARKS This species was described from a single specimen which has 

 since been lost. The true generic placement of this species is thus undeter- 

 mined and full description awaits the finding of more material. 



Harrieta Kensley, 1987c 



DIAGNOSIS 9 with mouthparts metamorphosed. Broodpouch of three pairs 

 of oostegites on pereonites 2-4, overlapping in midline; brood held in five 

 pairs of internal pouches. Uropodal rami subequal, lamellar in 9 , exopod 

 twice length of endopod and oval in cross section in 6 . Pleopod 2 in cJ with 

 copulatory stylet articulating basally on endopod, curved, barely reaching 

 apex of endopod. Penes basally fused, rami slender, elongate, tapering. 



Harrieta faxoni (Richardson, 1905) 

 Figure 101A,B 



DIAGNOSIS S 6.0 mm, 9 6.5 mm. 6: Frontal lamina with broad slightly 

 convex anterior margin. Two low rounded submedian tubercles on cephalon 

 near posterior margin. Two rounded submedian tubercles on last pleonite. 

 Pleotelson anteriorly inflated with two submedian tubercles; posterior mar- 

 gin trilobed. 9: Essentially similar to 6, but posterior margin of pleotelson 

 less markedly trilobed, with median lobe longer, and uropodal rami subequal 

 in length. 



RECORDS Florida to Texas, Gulf of Mexico, intertidal and subtidal in 

 Thalassia, Halodule, and Syringodium seagrass beds, in salinities of 7%o to 36%o. 



Sphaeroma Bosc, 1802 



DIAGNOSIS Maxillipedal palp with three distal articles poorly developed, 

 lacking lobes; fringe of robust plumose setae with swollen bases on internal 

 margin of endite; distal margin of endite with simple setae. Pereopods 1-3 

 with plumose setae on ischium and merus. Posterior margin of pleotelson 

 entire, similar in S and 9 . Pleopod 3, exopod uniarticulate. Uropodal ex- 

 opod with outer margin serrate. Able to conglobate. 6: Penes short, 

 rounded, separate. Pleopod 2, copulatory stylet articulating basally on endo- 

 pod, slender, reaching well beyond rami. 9 : Mouthparts not meta- 



