370 PROCEEDINGS OF THE ACADEMY OF [1879. 



Angelin's species are the following: 



187S. Myelodactylus gracilis Angl. Iconogr. Crin. Suec, p. 11, pi. 10. figs. 28. 



Upper Silur. Gotland, Sweden. 

 1878. Myelodactylus heterocrinus, Angl. Iconogr. Crin. Suec, p. 11, pi. 10, figs. 



24, 25. Upper Silur. Gotland, Sweden. 

 1878. Myelodactylus (?) interradialis Angl. Iconogr. Crin. Suec, p. 11, pi. 10, 



figs. 26, 27. Upper Silur. Gotland, Sweden. 



LIST OF SYNONYMS, CORRECTIONS, AND IMPERFECTLY 



DEFINED SPECIES. 



Actinocrinus Miller. 



A. arthriticus, Phill., see Gissocr. arthriticus. 



Adelocrinus Phillips, founded upon fragments of column. 



A. hystrix Phill., founded upon fragments of column. 



Ataxocrinus Lyon, syn. of Anomalocr. M. & W. 

 Bactocrinites fusiformis Schnur. , s-ee Homocrin. fusiformis. 

 Baerocrinus Volborth, syn. of HyLocrin-us (Zittel). 



Barycrinus Waehsmuth. 



B. Lyoni (Hall's sp.), see Vasocr. Lyoiii. 



Cladocrinus Austin (not Agassiz), see Taxocrinns. 



C. brevidartyhis Aust. see Taxocr. breridactylus. 

 C. pentagonns Aust., see Puteriocr. peutagouus. 



Cleiocrinus Billings 



C. grandis Bill , founded on fragments of column. 

 C. magnificus Bill., founded on fragments of column. 



Clidochirus Angl., var. of Calpiocrinus Angl. 

 Cromyocrinus Trautschold, syn. of Eupachycrinus M. & W. 



C. gem.inatus Trautsch., see Eupachycr. geminatus. 



C. ornatus Trautsch., see Eupachycr. ornatits. 



C. simplex Trautsch., see Eupachycr. simp/ex. 



Cupulocrinus d'Orbigny, syn. of Taxocrinns. 



Cupressocrinus, Goldf. 



C. nuciformis Goldf., see Eupachycr. simplex. 



Cyathocrinus Miller. 



C. abbreviates Miller, insufficiently defined. 

 C. angttlatus M. & W., see Barycr. angulatiis. 

 C. arthritiens Phill., see Gissocr. arthriticus. 

 C. bulhosits Hall, see Araclmocr. bulbosus. 

 C. bullatus Hall, see Barycr. bulla tus. 

 C. con globatus Troost. Catalogue name. 



