308 PROCEEDINGS OF THE ACADEMY OF [1881. 



A. cingulatus Goldf. Described from detached columns. 

 A. clavifferus Hall, syn. of Batocr. similis. 

 A. clio Hall, see Eretmocr. clio. 

 A. clivosus Hall, see Teleiocr, clivosus. 

 A. cloelia Hall, see Eretmocr. cloelia. 

 A. clypeatus Hall, see Batocr. clypeatus. 

 A. concavus Meek and Worth., see Dorycr. concavus. 

 A. concinnus Shumard, see Steganocr. concinnus. 

 A. corhulis Hall, see Eretmocr. corhulis. 

 A. corniculiis Hall, syn. of Agaricocr. brevis. 

 A. cornigerus Hall, see Dorycr. cornigerus. 

 A. cornigerus Shumard, syn. of Gennxocr. Kentuckiensis, 

 A. cornutus Troost. Not defined. 

 • A. coronatus Hall, Ere'mocr. coronatus. 

 A. Correyi Lyon, probably (?) Agaricocrinus. 

 A. costatus Eichwald. 'Detached column. 

 A. costatus Bigsby, see Actinoer. costus McCoy. 

 A. crassus Austin. Not defined. 

 A. cyathiformis Sandberger. Badly defined. 

 A. decadactylus Portlock (not Goldf.). Insufficiently described. 

 A. decornis Hall, see Dorycr. decornis. 



A. delicatus Meek and Worth., the young Teleiocr. umhrosus. 

 A. desideratus Hall, syn. of Dorycr. Missouriensis. 

 A discoideus Hall, see Batocr. discoideus. 

 A. divaricatus Hall, syn. of Dorycr. cornigerus, 

 A. divergens Hall, see Amphoracr. divergens. 



A. var. multiramosus Meek and Worth., syn. of Amphoracr. divergens. 



A. dodecadactylus Meek and Worth., see Batocr. dodecadactylus. 



A. doris Hall, syn. of Batocr. xqualis. 



A. dubius Eichwald. Detached columns. 



A. elephanti?ius Austin. Not sufficiently defined. 



A. eris Hall, see Agaricocr. eris. 



A. erodus Hall, see Teleiocr. erodus. 



A. eryx Hall, syn. of Actinoer. glans. 



A. eucharis Hall, see Gennseocr. eucharis. 



A. Evansii Owen and Shum., see Megistocr. Evansii. 



A. expansus Phillips, see Sagenocr. expansus, 



A. fibula Troost. Catalogue name. 



A. fiscellus Hall, see Agaricocr. fiscellus. 



A. formosus Hall, syn. of Batocr. discoideus. 



A. gemmiformis Hall, Eretmocr. gemmiformis. 



A. gihbosus Troost. Catalogue name. 



A. Gilberisoni Miller, see Amphoracr. Gilbertsoni. 



A. Gilbertsoni de Konink, syn. of Actinoer. stellaris de Kon. 



A. globosus Phillips, see Rhodocr. globosus. 



A. glyptus Hall, see Strotocr. glyptus. 



A. Gouldi Hall, see Dorycr. Gouldi. 



