Gnathia magdalenensis 239 



Gnathia beethoveni Paul and Menzies, 1971 

 Figure 103 A 



DIAGNOSIS S 3.0 mm. Anterior margin of cephalon with two low tubercles 

 flanking shallow medial notch plus slightly larger pair of lateral tubercles. 

 Cephalon lacking dorsal tubercles. Pereonite 5 1.5 times wider than middor- 

 sal length. Uropodal endopods reaching beyond telsonic apex. 



RECORDS Off Venezuela, 95 m. Colombia. 



Gnathia gonzalezi y^ViW^'i^, 1988 

 Figure 103B 



DIAGNOSIS 6 2.0 mm. Body smooth. Anterior margin of cephalon concave. 

 Pereonites 3-5 distinct; pereonite 5 2.5 times wider than middorsal length. 

 Cutting margin of mandible with four or five low rounded teeth. 



RECORDS Colombia, 30 m. 



Gnathia Johanna Monod, 1926 

 Figure 103C 



DIAGNOSIS 6 2.1 mm. Anterior margin of cephalon medially convex be- 

 tween pair of submedian tubercles. Pereonites 4 and 5 poorly separated. 

 Proximomedial lobe of mandible having four or five rounded crenulations, 

 with tiny seta between adjacent crenulations. 



RECORDS U.S. Virgin Islands, 29-46 m; Colombia. 



Gnathia magdalenensis Miiller, 1988 

 Figure 103D 



DIAGNOSIS 6 3.0 mm. Anterior margin of cephalon with three tubercles, 

 median tubercle slightly shorter than submedian pair. Cephalon with few 

 scattered low granulations dorsally. Pereonite 5 about 1 .5 times wider than 

 middorsal length. Proximomedial lobe of mandible entire. 



RECORDS Carrie Bow Cay, Belize, intertidal; Colombia, 18 m. 



