Abietinaria rigida : The Race Rocks Taxonomy

In this picture, the biotic associations of the rock scallop can be seen to consist of several hydroid species. Abietinaria rigida  is number 3. scallopnumbered   Ectopleura is numbers 1 and 5.

Domain Eukarya
Kingdom Animalia
Phylum Cnidaria
Class Hydrozoa
Order Leptothecata (=Leptomedusae)
Family Sertulariidae
Genus Abietinaria
Species rigida, Nutting 1904
Common Name:  ———–

This file is provided as part of a collaborative effort by the students,volunteers,staff and faculty of Lester B. Pearson College. 2005.

see this link for other hydroids:  http://www.racerocks.ca/tag/hydroid/