Jeffords, Jeffrey

Crinoid_closeup

Crinoidea

The white projections from the arm stalks in this closeup view are called pinnules. This crinoid has its arms retracted. Though many may feed during daylight hours, crinoids normally are nocturnal, and commonly keep the arms in a retracted position during the day. The tiny cilia lining the pinnules are also retracted and not visible in this photo.

About this image

Identification
Crinoidea
Location

Luzon Island, Philippines

Contributors
Jeffrey N. Jeffords
photographer copyright holder identification
Subjects
Subject Live Animal
Type Photo
Life Stages and Gender adult/sexually mature

Conditions of use

Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License .

To cite this page: Jeffords, J. 2004. "Crinoid_closeup.jpg" (On-line), Animal Diversity Web. Accessed {%B %d, %Y} at https://animaldiversity.org/collections/contributors/jeffrey_jeffords/crinoids/Crinoid_closeup/

Last updated: 2004-35-14 / Generated: 2025-09-15 02:00

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