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Eucidaris thouarsii Slate Pencil Urchin

Eucidaris thouarsiiis commonly referred to as Slate Pencil Urchin. Difficulty in the aquarium: Not suitable for aquarium keeping. Toxicity: Toxic hazard unknown.

Profilbild Urheber Dr. Paddy Ryan, USA

Eucidaris thouarsii, Copyright Dr.Paddy Ryan


Courtesy of the author Dr. Paddy Ryan, USA . Please visit www.ryanphotographic.com for more information.

Uploaded by Muelly.

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lexID:
8855 
AphiaID:
513266 
Scientific:
Eucidaris thouarsii 
German:
Lanzensseigel, Griffel-Seeigel 
English:
Slate Pencil Urchin 
Category:
Sea Urchins 
Family tree:
Animalia (Kingdom) > Echinodermata (Phylum) > Echinoidea (Class) > Cidaroida (Order) > Cidaridae (Family) > Eucidaris (Genus) > thouarsii (Species) 
Initial determination:
(L. Agassiz & Desor, ), 1846 
Occurrence:
Guadeloupe, Eastern Pacific Ocean, Ecuador, Galapagos Islands, Gulf of California, Mexico (East Pacific), North Pacific (Ocean), Panama 
Marine Zone:
Subtidal, sublittoral, infralittoral, deep zone of the oceans from the lower limit of the intertidal zone (intertidal) to the shelf edge at about 200 m water depth. neritic. 
Sea depth:
0 - 150 Meter 
Size:
1.97" - 6.3" (5cm - 16cm) 
Temperature:
°F - 77 °F (°C - 25°C) 
Food:
Algae, Coral polyps = corallivorous, Invertebrates 
Difficulty:
Not suitable for aquarium keeping 
Offspring:
Not available as offspring 
Toxicity:
Toxic hazard unknown 
CITES:
Not evaluated 
Red List:
Not evaluated (NE) 
Related species at
Catalog of Life:
 
Author:
Publisher:
Meerwasser-Lexikon.de
Created:
Last edit:
2022-10-17 19:29:18 

Info

Eucidaris thouarsii (L. Agassiz & Desor, 1846)

Eucidaris thouarsii, commonly known as Slate Pencil Urchinrocky, can be found on intertidal and subtidal habitats to 140 m depht, sometimes under rocks and among Pocillopra coral branches.This species is nocturnal.

The colour is brown to very dark purple. Spins to 16 cm long and often encrusted with sponges,hydrozoa, bryozoans, tube worms and algae.

Eucidaris thouarsii feeds primarily on algae,Pocillopora and Pavona corals.This seaurchin is a favorite food of triggerfish ans large wrasses.

Synonymised names:
Cidaris (Eucidaris) thouarsii (L. Agassiz & Desor, 1846) · unaccepted (transferred to Eucidaris)
Cidaris (Gymnocidaris) thouarsii (L. Agassiz & Desor, 1846) · unaccepted (transferred to Eucidaris)
Cidaris callao Perrier, 1869 · unaccepted (subjective junior synonym)
Cidaris danae L. Agassiz in L. Agassiz & Desor, 1846 · unaccepted (subjective junior synonym)
Cidaris thouarsii L. Agassiz & Desor, 1846 · unaccepted (transferred to Eucidaris)
Eucidarus thouarsii (L. Agassiz 6 Desor, 1846) · unaccepted (misspelling of parent genus)
Leiocidaris danae (L. Agassiz in L. Agassiz & Desor, 1846) · unaccepted (subjective junior synonym)
Leiocidaris thouarsii (L. Agassiz & Desor, 1846) · unaccepted (transferred to Eucidaris)

Direct children (2):
Subspecies Eucidaris thouarsii galapagensis (Döderlein, 1887)
Subspecies Eucidaris thouarsii thouarsii (L. Agassiz & Desor, 1846)

External links

  1. sealifebase (en). Abgerufen am 17.10.2022.
  2. Wikipedia (en). Abgerufen am 17.10.2022.
  3. World Register of Marine Species (WoRMS) (en). Abgerufen am 07.08.2020.

Pictures

Commonly

Eucidaris thouarsii, Copyright Dr.Paddy Ryan
1
Stout sea urchin Eucidaris thouarsii Baja Californica, Mexico 2017
Eucidaria thouarsii (slate pencil urchin) Balandra Beach, La paz 2018
Eucidaris thouarsii

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