Gnathia triospathiona 241 



Gnathia puertoricensis Menzies and Glynn, 1968 

 Figure 103E-G 



DIAGNOSIS 6 3.0 mm, ovigerous 9 1.8 mm. Anterior margin of cephalon 

 having three tubercles between mandibular bases, medial tubercle narrower 

 than submedian pair. Dorsal integument finely granular, with coarser gran- 

 ules mediodorsal to eye. Pereonites 4 and 5 indistinctly separated. Mandible 

 lacking proximomedial lobe. 



RECORDS Carrie Bow Cay, Belize, intertidal to 2 m; Puerto Rico, intertidal; 

 Cuba. 



Gnathia rathi Kensley, 1984 

 Figure 104A 



DIAGNOSIS 6 1.9 mm, ovigerous 9 2.2 mm. Frontal margin faintly convex 

 to straight between single low lateral tubercle mesial to mandibular bases. 

 Dorsal integument of cephalon and anterior two free pereonites coarsely 

 granular. Lateral margins of telson faintly denticulate. Pereonites 4 and 5 

 poorly separated. 



RECORDS Carrie Bow Cay, Belize, 1-36 m. 



Gnathia samariensis Miiller, 1988 

 Figure 104B 



DIAGNOSIS 6 2.0 mm. Anterior margin of cephalon with three tubercles, 

 median tubercle slightly shorter than submedian pair; dorsal integument 

 smooth. Pereonites 4 and 5 well differentiated; pereonite 5 about 2.2 times 

 wider than middorsal length. Mandible lacking proximomedial lobe. 



RECORDS Colombia. 



Gnathia triospathiona Boone, 1918 

 Figure 104C 



DIAGNOSIS 6 8.8 mm. Anterior margin of cephalon with broad-based tri- 

 angular projection bearing three low teeth; deep V-shaped depression pos- 

 terior to anterior margin, with low flanking granulations. 



RECORDS Off Key West, in Gulf Stream, 218 m. 



