INDEX. 



[Valid species in italics, synonyms in roman.] 



Agaricocrinus 6, 26 



Agassiz, Louis 34 



AmericaB Museum 26 



Amphoracririus 6 



Amplus group 47 



Anal interradius 16, 19, 24 



Arms, number of 21, 25, 45, 49, 53, 55 



Asterias group 48 



"Azygous side" 24 



Barris, W. H. 20 



Basals, atrophy of 11 (text fig. 4) 



Bassler, R. S 26 



Batocrinus, pores in 5 



Bilateral symmetry 16 



Bulbaceus group 42 



Cacabocrinites sculptus 32, 34 



Cacabocrinus troosti 16 



speciosus 30 



Camerata 2 



Carpocrinus, bipinnulate structure 



in 5 



Characters for species 1, 16, 21, 22, 52 



Chicago, University of 2, 19, 26 



Cirri 18 



Cleistocrinus, basals in 11 



Column in Dolatocrinus and Hi- 



merocrinus 14, 16, 17 



Comanthocrinus 4 (text fig. 1) 



fixed pinnules in 8 (text fig. 2) 



indianensis 6 



priscus 6,7 



Crinoidal faunas 1, 20 



Cyphocrinus 6 



Distribution of faunas 20 



Dolatocrinites, section defined 3 



analysis of the genera 3 



Dolatocrinus 16-26 



characters 22, 26 



column of 14, 16 



instability r.[ characters. . . 18, 22, 52 



occurrence of 1 



pinnules in 16 



the species of 1, 18, 19, 22, 27, 38 



amplus 47 



aplatus 44 



approximatus 28 



argutus 44 



arrosus 50 



var. cognatus 50 



asper 55 



asperutus 41 



Dolatocrinus — Continued. Page. 



aspratilis 42 



asterias 48 



aureatus 50 



basilicus 56 



hellarugosus 50 



canadensis 51 



charlestownensia 55 



cistula 55 



coelatus 50 



corbuliferus 50 



corporosus 54 



var. concinnus 55 



var. decoratus 54 



costatus 48 



curriei 34 



dispar 51 



dissimilaris 44 



eicosidactylus 55 



elegantulus 56 



excavatus 32, 33, 36 



exornatus 51 



exstans 37 



fossatus 32 



fungiferus 56 



glyptus 41 



var. intermedins 41 



grandis 32 



var. in carina tus 32, 34 



greenei 55 



hammelli 44 



incisus 49 



indianensis 54 



insuetus 36 



lacus 28 



laguncula 44 



lamellosus 36 



lineolatus 56 



liratus 41 



var. multilira 41 



lyoniM.andG 50 



lyoni W. and Spr 47 



magnificus 54 



major 36 



marshi 31, 32, 34 



var. hamiltonensis 38 



multibrachiatus 38 



multinodosus 56 



neglectus 44 



nodosus 56 



noduliferus 56 



77 



