File:1911 Britannica-Arachnida-Limulus polyphemus9.png
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摘要
| 描述 |
English: The remaining three pairs of mesosomatic appendages of Scorpio and Limulus polyphemus. VII, The genital operculum. VIII, The pectens of Scorpio and the first branchial plate of Limulus. IX, The first pair of lung-books of Scorpio and the second branchial plate of Limulus. gp, Genital pore. epst, Epistigmatic sclerite. stg, Stigma or orifice of the hollow tendons of the branchial plates of Limulus. l130 indicates that there are 130 lamellae in the scorpion’s lung-book, whilst l150 indicates that 150 similar lamellae are counted in the gill of Limulus. (After Ray Lankester, Quart. Journ. Micr. Sci., vol. xxi., 1881.) |
| 日期 | |
| 来源 |
 Encyclopædia Britannica Eleventh Edition, Vol. 2, Page 292 |
| 作者 | Encyclopædia Britannica, 1911 |
许可协议
|
This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States. |  |
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