. Mollusca ... [Pig. 17.—A. Arioplianfa Imvipes. Jaw and teeth of the racUila, X 300. E. Arinphunta immcrita. Jaw and teeth olradula, xir).5; and mantle-edc^e, viewed froiu the outside and irom below, sliowing , X 3. ■pvs. Parietal side of viseeral Pulmonary Anterior right dorsal :r(]l. posterior riglit dorsal Left dorsal Respiratory ajierture. in length, leads from the jtmction oi^ the kale-sac and penis-sheathto the retractor muscle ; t)ie amatorial organ or dart-sac is longand more or less cylindrical;

---

. Mollusca ... [Pig. 17.—A. Arioplianfa Imvipes. Jaw and teeth of the racUila, X 300. E. Arinphunta immcrita. Jaw and teeth olradula, xir).5; and mantle-edc^e, viewed froiu the outside and irom below, sliowing , X 3. ■pvs. Parietal side of viseeral Pulmonary Anterior right dorsal :r(]l. posterior riglit dorsal Left dorsal Respiratory ajierture. in length, leads from the jtmction oi^ the kale-sac and penis-sheathto the retractor muscle ; t)ie amatorial organ or dart-sac is longand more or less cylindrical; the spermatheca (receptactilumseininis) is small, globose, and either sessile or with a short broad, with numerous teeth in each row : rhachidian(central) tooth tricuspid, the side small and basal; the innerlaterals broad, bi- or tricuspid, forming a hand of varying widthdown the middle of tlie radida, distinct from the area occupied bythe outer bterals, which are elongate and uni- or b

---

Size: 2993px × 835px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1900, bookpublish, booksubjectmollusks