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

作者	编者
出版	the smithsonian institution
参考页数	75 ✅ 真实服务非骗流量 ❤️
出版时间	1917（求助前请核对）目录预览
ISBN号	无 — 违规投诉 / 求助条款
PDF编号	813013838（学习资料勿作它用）
求助格式	扫描PDF（若分多册发行，每次仅能受理1册）

on the crinoid genus scyphocrinus & its bulbous root camarocrinus 1917 PDF电子版封面

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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

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