Sentence Examples


  • A, Anus; at, antenna; F.I, F.2, first and second feet; j, jaws; L, lips; oe, oesophagus; or.p, oral papilla; ph, pharynx; R, rectum; s.d, salivary duct; s.g, salivary gland; sl.d, slime reservoir; sl.g, portion of tubules of slime gland; st, stomach; T, tongue in roof of mouth.
  • Io) consist of a pair of testes (te), a pair of seminal vesicles (v), vasa deferentia (v.d.), and accessory glandular tubules (f).
  • These tubules are the excretory tubules or nephridia.
  • There are reasons for supposing that these funnels are vestiges of an ancient excretory system, which has given way by substitution to the excretory tubules described above.
  • Weiss, "Excretory tubules in Amphioxus lanceolatus," Quart.
 

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