. å26.ç£é°é ¦çä¾ 1.çç è® 2.礴é- 3.ç°å¤ 4.å±é¢¨çº¿ 5.ç¡ç¤ª 6.ææ±è 7.é (4 )鶯è²äºç®ï¼Pteriacea)殼質ä¸å±¤æçç 質ï¼é¸ç¶ æ ç´ç·,常åå¾æ¹çªåºæ翼çãé¸é½ä¸æ顯ï¼åé殼ç-è¿åæ極 å°,大é½æ足絲ï¼é³ç²çµ²é³å¼,é£çµ¡æ網ç®çï¼æå«ç¨®é¡çå¤ï¼ å ±æåç§ã主è¦è ä¾å¦çç è²ï¼P^ido^a martensi),é»è¶è² (P- margaritefera), äºè åç¢çç ,廣æ±çå浦縣以ç¢æ-¤è²

---

Size: 2196px × 2277px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectbotany