. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. ECOLOGY AND ANATOMY OF A RARE LAND SNAIL 13 ribbed (Figure 3A). The penial retractor muscle originates on the floor of the lung and inserts in a sheathlike covering on the distal third of the epiphallus. The vas deferens runs forward along the medial side of the atrium then back along the penis and epiphallus. The epiphallic caecum is rather stout, tapering at the free end; its distal 1 mm is very fine, almost threadlike, and tipped b
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. ECOLOGY AND ANATOMY OF A RARE LAND SNAIL 13 ribbed (Figure 3A). The penial retractor muscle originates on the floor of the lung and inserts in a sheathlike covering on the distal third of the epiphallus. The vas deferens runs forward along the medial side of the atrium then back along the penis and epiphallus. The epiphallic caecum is rather stout, tapering at the free end; its distal 1 mm is very fine, almost threadlike, and tipped by a 1-mm diameter FIGURE 3. Monadenia setosa Talmadge, genitalia. Atrium rotated 90° to left with respect to penial complex. A. Penis opened to show verge. B. Cross-section of epiphallus at x. Abbrevia- tions: d, dart sac; e, epiphallus; ec, epiphallic caecum; m, mucus gland; p, penis; pr, penial retractor muscle; sd, spermatothecal duct; v, vas deferens. The atrium is broad, thick-walled and saccular. It contains two large transverse crura which, when everted, probably form a copulatory disk more or less like that illustrated by Webb (1952: Figures 9,10) for Monadenia fidelis. The everted. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original California. Dept. of Fish and Game; California. Fish and Game Commission; California. Division of Fish and Game. [San Francisco, etc. ] State of California, Resources Agency, Dept. of Fish and Game
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