| 引用出處 | Schiaparelli, S., R. Cattaneo-Vietti and P. Mierzejewski, 2004 A "protective shell" around the larval cocoon of Cephalodiscus densus Andersson, 1907 (Graptolithoidea, Hemichordata). Polar Biol. 27:813-817. |
| 參考文獻 | 973 Schiaparelli, S., R. Cattaneo-Vietti and P. Mierzejewski, 2004 |
| 頁 | 816 |
| Named Used as Valid | Cephalodiscus nigrescens |
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