Caymanostellidae is a group of rarely collected and morphologically unusual sea stars that have been exclusively encountered on wood falls in the deep sea. There are currently three genera and seven species described, occurring in the Atlantic, Pacific and Indian Oceans with a depth range between 418 and 6780 m. Three new species are here described from specimens collected from wood falls in multiple localities across the Pacific margin of Costa Rica and near the Gulf of California (Mexico): Caymanostella scrippscognaticausa sp. nov., Caymanostella davidalani sp. nov. and Caymanostella loresae sp. nov. These records expand the known geographical distribution of caymanostellids and constitute their first report from wood falls found at methane seeps. This study also includes the first descriptions of early-stage juvenile caymanostellids and reveals that traits previously considered useful for diagnosis might represent intraspecific and ontogenetic variability, with important consequences for caymanostellid taxonomy.
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Museo Argentino Ciencias Nat Bernardino Rivadavia, Lab Ecosistemas Costeros Plataforma & Mar Profund, Av Angel Gallardo 470,C1405DJR, Buenos Aires, DF, ArgentinaMuseo Argentino Ciencias Nat Bernardino Rivadavia, Lab Ecosistemas Costeros Plataforma & Mar Profund, Av Angel Gallardo 470,C1405DJR, Buenos Aires, DF, Argentina
Rivadeneira, Pamela R.
Martinez, Mariano, I
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Museo Argentino Ciencias Nat Bernardino Rivadavia, Lab Ecosistemas Costeros Plataforma & Mar Profund, Av Angel Gallardo 470,C1405DJR, Buenos Aires, DF, ArgentinaMuseo Argentino Ciencias Nat Bernardino Rivadavia, Lab Ecosistemas Costeros Plataforma & Mar Profund, Av Angel Gallardo 470,C1405DJR, Buenos Aires, DF, Argentina
Martinez, Mariano, I
Penchaszadeh, Pablo E.
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Museo Argentino Ciencias Nat Bernardino Rivadavia, Lab Ecosistemas Costeros Plataforma & Mar Profund, Av Angel Gallardo 470,C1405DJR, Buenos Aires, DF, ArgentinaMuseo Argentino Ciencias Nat Bernardino Rivadavia, Lab Ecosistemas Costeros Plataforma & Mar Profund, Av Angel Gallardo 470,C1405DJR, Buenos Aires, DF, Argentina
Penchaszadeh, Pablo E.
Brogger, Martin, I
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Consejo Nacl Invest Cient & Tecn, Inst Biol Organismos Marinos, Lab Reprod & Biol Integrat Invertebrados Marinos, Puerto Madryn, ArgentinaMuseo Argentino Ciencias Nat Bernardino Rivadavia, Lab Ecosistemas Costeros Plataforma & Mar Profund, Av Angel Gallardo 470,C1405DJR, Buenos Aires, DF, Argentina
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Natl Inst Water & Atmospher Res, Private Bag 14-901, Wellington, New ZealandNatl Inst Water & Atmospher Res, Private Bag 14-901, Wellington, New Zealand
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Univ Tokyo, Grad Sch Sci, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
Natl Museum Nat & Sci, Dept Zool, 4-1-1 Amakubo, Tsukuba, Ibaraki 3050005, JapanUniv Tokyo, Grad Sch Sci, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
Kobayashi, Itaru
Kohtsuka, Hisanori
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Univ Tokyo, Misaki Marine Biol Stn, Grad Sch Sci, 1024 Koajiro, Miura, Kanagawa 2380225, JapanUniv Tokyo, Grad Sch Sci, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
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Los Angeles Cty Museum Nat Hist, Los Angeles, CA 90007 USA
Santa Barbara Museum Nat Hist, Santa Barbara, CA 93105 USALos Angeles Cty Museum Nat Hist, Los Angeles, CA 90007 USA
Clark, Roger N.
Jewett, Stephen C.
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Univ Alaska Fairbanks, Inst Marine Sci, Fairbanks, AK 99775 USALos Angeles Cty Museum Nat Hist, Los Angeles, CA 90007 USA
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Xiamen Univ, Marine Biodivers & Global Change Res Ctr, Xiamen 361005, Peoples R ChinaXiamen Univ, Marine Biodivers & Global Change Res Ctr, Xiamen 361005, Peoples R China
Wang, Dexiang
Wang, Chunsheng
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State Ocean Adm, Inst Oceanog 2, Lab Marine Ecosyst & Biogeochem, Hangzhou 310012, Zhejiang, Peoples R China
State Ocean Adm, Inst Oceanog 2, State Key Lab Satellite Ocean Environm Dynam, Hangzhou 310012, Zhejiang, Peoples R ChinaXiamen Univ, Marine Biodivers & Global Change Res Ctr, Xiamen 361005, Peoples R China
Wang, Chunsheng
Zhang, Yuan
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Xiamen Univ, Marine Biodivers & Global Change Res Ctr, Xiamen 361005, Peoples R ChinaXiamen Univ, Marine Biodivers & Global Change Res Ctr, Xiamen 361005, Peoples R China
Zhang, Yuan
Liu, Chenggang
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State Ocean Adm, Inst Oceanog 2, State Key Lab Satellite Ocean Environm Dynam, Hangzhou 310012, Zhejiang, Peoples R ChinaXiamen Univ, Marine Biodivers & Global Change Res Ctr, Xiamen 361005, Peoples R China