Text-book of the embryology of invertebrates / by E. Korschelt, K. Heider.

  • Korschelt, E. (Eugen), 1858-1946. Lehrbuch der vergleichenden Entwicklungsgeschichte der wirbellosen Thiere. English
Date:
1895-1900
Catalogue details

Licence: In copyright

Credit: Text-book of the embryology of invertebrates / by E. Korschelt, K. Heider. Source: Wellcome Collection.

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    PAGE 1. Development through free-swimming larvse (Poly- chseta and Archiannelida) 262 Oviposition; brooding 262 Embryonic development (cleavage, blastula) . 263 Formation of tbe germ-layers; mesoderm . . 265 Trochophore [larva] 266 Metamorphosis of the Trochophore larva into the worm ......... 268 The various larval forms (atrocha, monotrocha, telotrocha, etc.), with remarks on their meta- morphoses 270 Suppression of the larval form through brooding 280 2. Development with out free-swimming larvse (Oli- gochseta) 281 Oviposition (cocoons); cleavage .... 281 Formation of the germ-layers (mesodermal bands) 282 The embryos in the larval condition (head kid- ney) 283 Formation of the worm 284 Primitive Segments ; formation of the mesoderm 285 3. Formation of the Organs 286 Ectodermal structures: epidermis; setigerous sacs ; nervous System and sensory organs . 287 Mesodermal structures : body cavity ; muscula- ture; blood-vessels 289 Head kidney and segmental organs . . . 295 Genital organs 297 Entodermal structures: intestinal canal . . 299 Non-sexual reproduction; regeneration; di Vi- sion (Lumbriculus, Ctenodrilus) . . . 301 “ Büdding ” of the Naididse, Autolytus, Syllidse, Nereis 302 Stock-formation of Syllis ramosa .... 304 II. Echiuridae 304 1. Oviposition; cleavage and formation of the germ- layers 304 2. Larval form and metamorphosis of Echiurus and Thalassema 306 3. Larval form and metamorphosis of Bonellia . . 310 Development of the male of Bonellia; general considerations 312 III. Dinophilus 313 Beoemblance to polytrochal Annelid larvse . . 313 Oviposition ; development; sexual dimorphism . 314 IV. Myzostoma . 315 Embryonic development and larval form . . . 815 Resemblance to Annelid larvse; metamorphosis . . 316
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