Saturday, December 7, 2013

Choriaster granulatus Lütken, 1869

Choriaster Lütken, 1869
Choriaster granulatus Lütken, 1869

A shallow-water species, seen throughout the Indo-Pacific. Japan, Australia, Indonesia, Philippines and east to the Indian Ocean.

From Lighthouse Bommie, Ribbon Reef #10, Great Barrier Reef. Photo by Richard Ling
Starfish Choriaster granulatus

From Papua New Guinea. Photo by Jan Messersmith
Starfish - Choriaster granulatus - PC162377

From Timur II Bunaken SULAWESI. Image by Bernard DuPont
Granulated Seastar Choriaster granulatus

From Tanjung Kubur, Lembeh Strait, Sulawesi, INDONESIA. Image by Bernard DuPont.
Granulated Sea Star Choriaster granulatus

From Lembeh Strait. Photo by Samuel Chow
Sea Star (Choriaster Granulatus) (30 cm)

From the Philippines. Photo by Arno Enzerink.
Granulated sea star on the ocean floor
Granulated sea star on the ocean floor

From Okinawa Japan. Photo by Paul_(shin.ogata)
カワテブクロ (Choriaster granulatus)

From the Maldives. Photo by Giorgio
Foto_2007-02-20 15.05.05
Foto_2007-02-20 15.03.00

Calliaster baccatus Sladen 1889

Calliaster baccatus Sladen 1889

Occurs primarily in South Africa, 1-20 m.  An extensive photo gallery of this species can be found here. 
Cobbled Starfish (Calliaster baccatus)
Image by "Charne" photopixie2
Image by Bernard Picton. 

Friday, December 6, 2013

Thromidia catalai Pope & Rowe 1977

Thromidia Pope & Rowe 1977
Thromidia catalai Pope & Rowe 1977

Occurs widely throughout the central/South Pacific. Hawaii, Japan to New Caledonia, including Vanuatu and the Solomon Islands.  In 35-45 m depths. This, and its sister species are among the world's largest seastars.

This image from the Solomon Islands
Thromidia catalai
Image by Treamy1
For scale...A specimen collected by Dr. David Lane during the 2006 French Santo Biodiversity Expedition.  Read more about it here.   the other image by Yoshinon.hoko in Japan

Evoplosoma claguei Mah et al. 2011

Goniasteridae: Hippasterinae
Evoplosoma Fisher 1906
Evoplosoma claguei Mah et al, 2011

A deep-sea species which feeds on deep-sea gorgonians. Known from CoAxial Cone and Rodriguez Seamount and off Islas Tres Marias in the North Pacific. 730–2405.6 m.
Original description here.

Monday, May 13, 2013

Akelbaster novaecaledoniae Mah 2007

Akelbaster Mah 2007
Akelbaster novaecaledoniae Mah 2007

Described by Mah 2007 in Invertebrate Systematics! Cover issue! here.

Occurs: New Caledonia. 225-400 meters.

 Side: superomarginal and inferomarginal plates. With odd pits at junctions between them..
 SEM of the strange structures at junctions between plates.

Pycnopodia helianthoides (Brandt, 1835) aka Sunflower Star

Pycnopodia Stimpson, 1862
Pycnopodia helianthoides (Brandt, 1835)

Referred to as the Sunflower star, sunflower starfish and variants thereof.

Taxonomic info from the World Asteroidea Database for P. helianthoides.
Image by Marvin Sperlin, fr. Humboldt county, CA
21 arm Sunflower Sea Star.   ispid=2110194

Image by Daniel Johnson, Moss Beach, CA.
Sunflower Star (Pycnopodia helianthoides) and friends

Image by "rebafay" from Pillar Point, CA

Image by Allison Gong, Santa Cruz, CA

Image by George Grossman. From Point Reyes, CA
Sunflower Starfish

Washington. Image by Eric Cheng, Puget Sound, WA.

Image by alizaybek31. From Hope Island, WA.
Sunflower Starfish

Image by Roger Steeb. Both images from British Columbia.
Sunflower Star
Colorful Sunflower Star

Alaska. Image by Ken Bartline, Sitka, AK.
Sunflower Star

Not sure where..Image by Doug Mason
Pycnopodia helianthoides-orange morph (HMB)
long armed!
Pycnopodia helianthoides (Scott Creek)