From:
Charles Robert Darwin
To:
Rudolf Albert von Kölliker
Date:
14 June 1870
Source of text:
DAR 146: 22
Summary:
Thanks for RAvK’s work [Anatomisch-systematische Beschreibung der Alcyonarien, pt 1, Die Pennatuliden (1870)].
Asks whether muscles to quills of porcupine are striped. Are they homologous to muscles of ordinary hairs? Could unstriped muscles develop into striped?
Contributor:
Darwin Correspondence Project