A. E. Verrill on the Synonymy of the Sea-urchin. 101 
Art. XIV.—Note on the Generic relations and Synonymy of the 
Common Sea-urchin of New England (Euryechinus Drobachi- 
ensis Verrill); by A. E. VERRILL. 
Tas common sea-urchin, which is found upon the northern 
coasts of Hurope, and both upon the Atlantic and Pacific coasts 
of northern America, was referred to the genus Echinus by all 
as its type. But afterward, in the introduction to Valentin’s 
Anatomy of the genus Echinus, Dec., 1841, he revised the genus 
the typical species, several previously placed by Agassiz in 
Echinus, Stil late art 
is the description: Le genre 
par des rangée in Vane sibhes 
Pose de six a neuf paires de pores. Vers la bouche il y en a moins; mais e “4 
sont plus rapprochées, Les tubercules des s¢ries principales cs wigs vee 
Pouverture inférieure du test offre dix échancrures peu profondes. gE ee 
Pour type de ce genre I’ Echinus tuberculatus; j’en connais quelques “ 
t Proc. Boston Society Nat. Hist., x, p. 341, 1866, and Transact. Connecticut 
Acad., i, p. 394, 1867. 
