Mouthpart Morphology of Three Sympatric Native and Nonnative Gammaridean Species: Gammarus pulex, G. fossarum, and Echinogammarus berilloni (Crustacea: Amphipoda)

<table>: SEM images of antennulae and antennae: (a–c) right antennula in median view of (a) Gammarus pulex, (b) Gammarus fossarum, and (c) Echinogammarus berilloni; (d–f) right antenna in median view of (d) G. Pulex, (e) G. Fossarum, and (f) E. berilloni; (g) proximal part of right antenna of G. pulex in posterior view; (h) proximal part of flagellum of right antenna of G. fossarum in median view; (i) flagellum of left antenna of E. berilloni in posterior view. af: accessory flagellum; bas: basipod; cal: calceolus; cox: coxa; f: flagellum; gc: gland-cone; 1, 2, 3, 4, 5: number of podomeres of peduncle.</table>

International Journal of Zoology

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Figure 2

Figure 2: Mouthpart Morphology of Three Sympatric Native and Nonnative Gammaridean Species: Gammarus pulex, G. fossarum, and Echinogammarus berilloni (Crustacea: Amphipoda)

Figure 2 | Mouthpart Morphology of Three Sympatric Native and Nonnative Gammaridean Species: Gammarus pulex, G. fossarum, and Echinogammarus berilloni (Crustacea: Amphipoda) 