TABLE OF CONTENTS. XIII 



Page. 

 Attachment of larva and Its transformation into stalked form Continued. 



Intestinal canal 468 



Coelome and its derivatives (axial and chambered organs) 470 



Hydrocoele 474 



Parietal canal 47G 



Mesenchyme 477 



Calcareous skeleton 477 



Sacculi 480 



Connective tissue 481 



Stalked larva after rupture of vestibule, up to appearance of rudiments of arm.s__ 4Sl! 



Description of larva from fifth day to sixth week after rupture of egg membrane.- 4S2 



Ectoderm 48- 



Ectoderm of body wall 482 



Vestibular lining and nervous system 483 



Ectoderm of the tentacles 486 



Intestinal canal 4S9 



Ccelome and its derivatives 481 



Chambered organ 49i' 



Axial organ 491! 



Hydrocoele 494 



Parietal canal 49li 



Mesenchyme 497 



Sacculi 497 



Connective tissue 49S 



Dorsal nervous system 499 



Antedon mediterranea 499 



Antedon bifida 502 



Antedon moroccana 509 



Comactinia meridionalis 509 



Tropiometra macrodiscus 510 



Tropiometra picta 510 



Isometra vivipara 510 



Notocrinus virilis 511 



Abnormal embryos and lame 511 



The pentaerinoid young 513 



Comissia littoralis 513 



Comissia hartmeyeri 514 



Comanthus wahlbergii 514 



Comactinia meridionalis 514 



Comasterid pentacrinoids 517 



'?Lamprome(ra, sp 518 



Tropiometra picta 520 



Ptilometra miilleri 520 



Crotalometni porrecta 521 



Glyptometra tulierosa __. 523 



Antedon petnsns 523 



Antedon bifida 524 



Antedon moroccana 526 



Antedon mediterranea 526 



Antedon adriatica 527 



Compsometra serrata ; 527 



Compsonietra loveni 527 



Leptometra celtica 528 



Leptometra phalaugium 528 



