. The elasmobranch fishes . Fig. 119. Body cavity opened to show viscera, Heptanohu,s maculatus. (C. G. Potter, orig.) d., cloaca ; co., colon; , cardiac stomach; ??'., liver; pn}~-, dorsal and ventral lobes of pancreas; /;..s'., pyloric stomach; re, rectum; , rectal gland; , valvular intestine.

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