. The Encyclopaedia Britannica; ... A dictionary of arts, sciences and general literature . e of, the body in front of the stig-mata. No reproduction bygemmation or metamorphosisis known in the is one of the most in-teresting groups of the Tuni-cata, as it shows more com-pletely than any of the restthe characters of the originalancestral forms. It has un-dergone little or no degen-eration, and consequentlycorresponds more nearly tothe tailed-larval conditicnthan to the adult forms ofthe other groups. The orderPro. W.—OikojAeura, copTiocerta in Hans^des a single family, the(af

---

. The Encyclopaedia Britannica; ... A dictionary of arts, sciences and general literature . e of, the body in front of the stig-mata. No reproduction bygemmation or metamorphosisis known in the is one of the most in-teresting groups of the Tuni-cata, as it shows more com-pletely than any of the restthe characters of the originalancestral forms. It has un-dergone little or no degen-eration, and consequentlycorresponds more nearly tothe tailed-larval conditicnthan to the adult forms ofthe other groups. The orderPro. W.—OikojAeura, copTiocerta in Hans^des a single family, the(after Fol), seen from righ* side, magnified ArPENDICCLARIIDj;, all theSIX times. The arrows indicate the course members of whiVb urn minntoof the water; x, lateral reticulated parts of j , viaicn are minute Haus. and free-swimming. They ^ , ., ,, _ occur on the surface of the sea in most par s of the world. They possess the power to form Strac-with great rapidity an enormously large investing gelatinous layer ture of(hg. 11), which corresponds to the test of other groups. This was Appm-. neural canal. ?;7rrr--p^:^l^^^^^Li!Li!^™tially the sameJ the egs foUlcle. ^o P^^^S^wTdiS;;^ from the epithelial

---

Size: 1217px × 2052px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1900, bookidencyclopaedi, bookyear1902