《on the crinoid genus scyphocrinus & its bulbous root camarocrinus》

作者	编者
出版	the smithsonian institution
参考页数	75
出版时间	1917（求助前请核对）目录预览
ISBN号	无 — 求助条款
PDF编号	813013838（仅供预览，未存储实际文件）
求助格式	扫描PDF（若分多册发行，每次仅能受理1册）

系统维护中...

Introduction1

History of discovery3

Description of the specimens6

Conclusion as to Camarocrinus9

Construction and probable origin of the bulbs14

Mode of union between plates in Scyphocrinus19

The American species of Scyphocrinus21

Description of the species30

Scyphocrinus elegans Zenker (Pls. Ⅰ ; Ⅱ ; Ⅲ, figs. 1-4 ; Ⅳ ; Ⅴ, figs. 1-5)30

Further remarks upon the fixed pinnules40

Scyphocrinus spinifer, new species (Pl. Ⅸ, figs. Ia-c)46

Scyphocrinus mutabilis, new species (Pls. Ⅵ, figs. 3-19; Ⅷ, figs. 3, 4, 5)47

Scyphocrinus stellatus (Hall) (P1. Ⅶ, figs. 4a, b)49

Scyphocrinus pratteni (McChesney) (Pls. Ⅶ, figs. Ia, b; Ⅷ, figs. I 2a, b)50

Scyphocrinus pyburnensis, new species (Pls. Ⅶ, figs. 2a, b, 3; Ⅷ, figs. 6a, b, 7)52

Scyphocrinus ulrichi, new species (Pl. Ⅸ, figs. 2a, b)54

Scyphocrinus gibbosus, new species (Pl. Ⅸ, figs. 3a, b)55

Explanation of plates57

1917《on the crinoid genus scyphocrinus & its bulbous root camarocrinus》由于是年代较久的资料都绝版了，几乎不可能购买到实物。如果大家为了学习确实需要，可向博主求助其电子版PDF文件（由 1917 the smithsonian institution 出版的版本）。对合法合规的求助，我会当即受理并将下载地址发送给你。

系统维护中...