XIV 



CONTENTS. 



9. 



10. 



Chapter XIX. CRUSTACEA— continued. 



Caligidae (Chalimus stage) 

 Lernaeidae 

 Lernaeopodidae 

 C. Branchiura .... 



7. General considerations regarding the segmentation of the body 



and the metamorphoses of the Malacostraca 

 Segmentation of the body 

 Typical form of the limbs 

 Metamorphoses of the Malacostraca . 

 The Nauplius stage 

 The Metanauplius stage 

 The Protozoaea stage 

 The Zoaea stage 



The Mysis and Metazoaea stages 



Final stages of metamorphosis (Mastigopus, Megalopa) 

 Abbreviation of metamorphosis 

 Metamorphosis of the Schizopoda and Stomatopoda 



8. Metamorphosis of the Leptostraca 

 Metamorphosis of the Schizopoda 



Nauplius and Metanauplius of the Euphausiidae 

 Calyptopis stages 

 Furcilia and Cyrtopia stages 

 Development of the Mysidae and Lophogastridae 

 Metamorphosis of the Decapoda 



A. Sergestidae . . ■ . 

 Metanauplius of Lucifer 

 Protozoaea and Zoaea of Lucifer 

 Mysis and Mastigopus larvae of Lucifer 

 Metamorphosis of Sergestes . 

 Elaphocaris (Zoaea of Sergestes) 

 Acanthosoma (Mysis larva of Sergestes) 

 Metamorphosis of other Sergestidae 



B. Penaeidae .... 

 Metamorphosis of Penaeus 

 Ceratapsis 

 Metamorphosis of Stenopus . 



C. Caridea 

 Abbreviated development of some Caridea 

 Amphion 



D. Astacidea .... 

 Homarus .... 

 Nephrops 

 Astacus and Cambarus 



E. Loricata .... 

 Embryos of Scyllarus 

 Structure of the Phyllosoma . 

 Metamorphosis of the Phyllosoma 



F. Thalassinidca 

 Metamorphosis of Gebia 



Larva of Calliaxis (Trachelifer) 



