on the Organic Composition of Chalk and Chalk Marl. 377 



affinity and relations of structure and development, be reduced 

 to eighty-six genera, but which number might perliaps be still 

 further diminished, as a few jjenera might be classed as sub- 

 genera. The Anthozoa he has divided into two orders, Zoo- 

 coraUia (Animal-corals) and Phytocorallia (Plant-corals). In 

 the Memoir is given a systematic description of the Orders, 

 Tribes, Families, Genera and Species of the Anthozoa, while 

 further details are reserved for the author's work, entitled, 

 Symbolic Phi/siccc, The subjoined Table will show the general 

 arrangement, extending to the genera. 



Anthozoa. 



Ore ventriculoque tlistinctis, tiibo cibario anoqiie discreto nullis, corpore 

 intiis racliatiiii lamelloso. (Vibratio nulla, gemmae et spontanea divisio 

 frequeiitissimae.) 



OrDO I. ZOOCORALLIA. 



Corpore aut oinnino molli, aut Cephalopodum more intiis lapidem gene- 

 rante (secernente nee excernente) hinc sa;pe omnino libera et, praeter for- 

 mam, animaliiun cliaracteres omnes perfectius servantia. 



