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Figure 1

From: The macroparasite fauna of cichlid fish from Nicaraguan lakes, a model system for understanding host–parasite diversification and speciation

Figure 1

Photomicrographs of representative species of macroparasites of cichlids from the Nicaraguan lakes. The trematodes: (a) Saccocoleioides spp., (b) C. cichlasomae, (c) anterior end of A. compactum, (d) O. manteri and (e) metacercariae of Cryptogonomidae gen. sp. The monogeneans: (f) whole specimen of S. mexicanum, (g) haptor of S. mexicanum and (h) haptor of S. nicaraguense. The nematodes: (i) tail of Physocephalus sp., (j,k) larval stages of Contracaecum spp., (l) apical view of P. barlowi and (m) lateral view of the anterior end of Goezia sp. The acanthocephalans: (n) apical view of the proboscis hooks of the cystacanth Polymorphus brevis and (o) lateral view of the hooks of N. costarricense. The copepods: (p) A. margulisae anchored to a gill filament, (q) Ergasilidae gen. sp. and (r) anchor of L. cyprinacea. (s) Oral sucker of the hirudinean Myzobdella sp. (t) Ventral view of the branchiuran Argulus sp.

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