MARINE GAMMARIDEAflSr AMPHIPODA 



67 



Figure 16. — Cressidae: a, mandible, note obsolescent molar; h, accessory flagellum absent; 

 c, coxae 1—4, left to right, note coxa 4 often not completely shield-like [see Thaumatel- 

 sonidae, Stenothoidae, Pagetinidae]; i, maxilliped, note reduced outer plate; e, urosome, 

 left, note telson (T) fused with segment 3 [see Stenothoidae, Thaumatelsonidae];/, uropod 

 3, uniramous [see Amphilochidae]; g, telson. 



Article 2 of pereopod 3 is always expanded in Cressidae, unlike Stenothoidae. 



