. Mollusca ... t andleft shell-lobes produced posteriorly into tongue-like expansions ;dorsal lobes greatly developed, the left dorsal lobe in two dorsum of the body just behind the shell is flat, but it issharply keeled behind. Caudal extremity truncated; mucous porelarge. Peripheral groove double. Sole with a median groove(not ahvays conspicuous), but jiot di\ided into median and lateraltracts. liadula broad, \\ith numerous teeth iji each row ; the formulais 204 . 23 .1 . 23 . 204 (227 .1 . 227). The median band of largeteeth is very broad, the teeth composing it are simple withouc
. Mollusca ... t andleft shell-lobes produced posteriorly into tongue-like expansions ;dorsal lobes greatly developed, the left dorsal lobe in two dorsum of the body just behind the shell is flat, but it issharply keeled behind. Caudal extremity truncated; mucous porelarge. Peripheral groove double. Sole with a median groove(not ahvays conspicuous), but jiot di\ided into median and lateraltracts. liadula broad, \\ith numerous teeth iji each row ; the formulais 204 . 23 .1 . 23 . 204 (227 .1 . 227). The median band of largeteeth is very broad, the teeth composing it are simple withouclateral cusps ; the numerous hilerals are bicuspid, except the outermarginals. Jaw with a concave edge without median projection. * Aeeoidiiig lo SiiiipiT. EATNADVIP[A. 75 An amatovial organ (dari-sac) present, large and cylindrical;no calcareous dart found, but a short blunt muscular sessile. The vas deferens passes into a kale-sac,which is joined to the penis-sheath, some distance from the. ^^^3i9iMk^kr£n£S^^^
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Keywords: ., bookcentury1900, bookdecade1900, bookpublish, booksubjectmollusks
