Intertidal Invertebrates of the Monterey Bay Area, California
Compiled & photographed by Gary McDonald, Long Marine Laboratory, University of California, Santa Cruz
Carmel Pt., Monterey Co., CA; 7 May 2008; 16mm total length.
Description: Body white to yellowish-white, with a narrow, yellow to orange line extending postero-medially from between the rhinophores to the branchial plumes and continuing from posterior of the branchial plumes to the tip of the tail. Similar line on each side extends posteriorly along the dorso-lateral margin, from the rhinophores to the extra-branchial appendages; and continues between extra-branchial appendages and for a short distance posterior of them (these lines may be discontinuous). Rhinophores perfoliate with 8-10 lamellae, tip of clavus yellow to orange. Each rhinophore with two extra-rhinophoral appendages which have subapcial band of yellow to orange. Branchial plumes 3, bi- and tripinnate, yellowish-white with yellow to orange tips. With 4-5 or more yellow to orange tipped, extra-branchial appendages on each side.
Size: Typically about 10mm in length but may reach 32mm.
Notes: Feeds on the entoproct Barentsia ramosa.
Carmel Pt., Monterey Co., CA; 7 May 2008; 16mm total length.
Carmel Pt., Monterey Co., CA; 7 May 2008; 16mm total length.
Carmel Pt., Monterey Co., CA; 5 June 2008; 12mm total length.
Carmel Point, Monterey Co., CA; 31 July 2007; 13mm total length.
Carmel Pt., Monterey Co., CA; 7 May 2008; 16mm total length.
Left: Carmel Pt., Monterey Co., CA; 5 June 2008; 12mm total length. Right: Carmel Pt., Monterey Co., CA; 28 Apr 2009; 9mm total length. Close-up of rhinophore.
Monterey Harbor Docks, Monterey Co., CA; 7 May 2009; 8mm total length.