CHRONOLOGICAL LIST. 85 



1871. 



Verrill, Notes on Radiata, Trans. Conn. Acad. 1871, February and March. 



Plagionotus 



africanus ! 

 Boletia 



picta ! 

 Evechinus 



chloroticus ! 

 Toxocidaris 



homalostoma ! 



eurythrogramma ! 

 Clypeaster 



testudinarius ! = Echinanthus testudinarius Gray, 1851. 



1871. 



A. Agassiz, BuU. M. C. Z. No. 5, II. 1871, April; Suppl. to Bull. No. 9, I. 1869. 



Coelophurus 



Maillardi ! 

 sp. 



1871. 



Costa, O. G., Monog. degli Echinocyami viv e foss 1871. 



Echinocyamus 



parthenopaeus = Spatagus pusillus Mull. 1776. 

 speciosus = " " " 



1872. 



A. Agassiz, Preliminary Notice of a few Echini, Bull. M. C. Z. III. No. 4, 1872, January. 



Strongylocentrotus 



armiger ! 

 Sphaereclthuis 



Australiae ! 

 Amblypneustes 



pentagonus ! 



inflatus ! Lutk. 



purpurescens ! Lutk. 

 Holopneustes 



inflatus ! 



purpurescens ! 

 Spalangus 



Lutkeni ! 

 Lovenia ! 



cordifoimis ! Lutk. 

 Moera 



stygia ! Lutk. 

 Rhynobrissus 



pyramidalis ! 



