. The elasmobranch fishes . Fig. 120. Digestive tract and its mesenteries, 11 cpldnchiis (Euth Jeanette Powell, del.) CO., colon ; , cardiac stomach ; , bile duct; fZw.,duodenum; /;.2J.,hei:)atie portal vein; )., median fold of mesentery (omentum) ; mr., mesorectal mesentery; or., oesophagus; pn.^'-, dorsal and ventral lobes of pancreas; , pyloric stomach; , right fold of mesen- tery; re, rectum; , rectal gland; , spiral intestine; spL, spleen; spl.^, anterior exten- sion of spleen.

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