Deep-Sea name details
Echinosigra paradoxa (Mortensen, 1905)
124352 (urn:lsid:marinespecies.org:taxname:124352)
unaccepted (subjective junior synonym)
Species
Pourtalesia paradoxa Mortensen, 1905 · unaccepted (transferred to Echinosigra)
marine, brackish, fresh, terrestrial
recent only
Mortensen, T. 1905. Some new species of Echinoidea. Videnskabelige Meddelelser fra den naturhistoriske Forening i Kjøbenhavn, Series 6 7, 241-243.
page(s): 343 [details]
page(s): 343 [details]
Type locality contained in Icelandic Exclusive Economic Zone
, Note S. of Iceland. 843-912 fathoms....
type locality contained in Icelandic Exclusive Economic Zone [details]
From editor or global species database
Type locality S. of Iceland. 843-912 fathoms. (‘Ingolf’-Expedition.) [details]
Kroh, A.; Mooi, R. (2024). World Echinoidea Database. Echinosigra paradoxa (Mortensen, 1905). Accessed through: Glover, A.G.; Higgs, N.; Horton, T. (2024) World Register of Deep-Sea species (WoRDSS) at: https://www.marinespecies.org/deepsea/aphia.php?p=taxdetails&id=124352 on 2025-04-04
Glover, A.G.; Higgs, N.; Horton, T. (2025). World Register of Deep-Sea species (WoRDSS). Echinosigra paradoxa (Mortensen, 1905). Accessed at: https://marinespecies.org/deepsea/aphia.php?p=taxdetails&id=124352 on 2025-04-04
Date
action
by
original description
Mortensen, T. 1905. Some new species of Echinoidea. Videnskabelige Meddelelser fra den naturhistoriske Forening i Kjøbenhavn, Series 6 7, 241-243.
page(s): 343 [details]
context source (Deepsea) Intergovernmental Oceanographic Commission (IOC) of UNESCO. The Ocean Biogeographic Information System (OBIS), available online at http://www.iobis.org/ [details]
basis of record Hansson, H.G. (2001). Echinodermata, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i>. 50: pp. 336-351. (look up in IMIS) [details]
additional source Mortensen, T. (1950). A Monograph of the Echinoidea. V, 1. Spatangoida I. Protosternata, Meridosternata, Amphisternata I. Palæopneustidæ, Palæostomatidæ, Aëropsidæ, Toxasteridæ, Micrasteridæ, Hemiasteridæ, 432 pp., C. A. Reitzel, Copenhagen.
page(s): 153 [details]
status source Mironov, A. N. 1997. [Holasteroid sea urchins. 4. Echinosigra]. Zoologicheskii Zhurnal 76, 173-186.
page(s): 174 [details]
page(s): 343 [details]
context source (Deepsea) Intergovernmental Oceanographic Commission (IOC) of UNESCO. The Ocean Biogeographic Information System (OBIS), available online at http://www.iobis.org/ [details]
basis of record Hansson, H.G. (2001). Echinodermata, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i>. 50: pp. 336-351. (look up in IMIS) [details]
additional source Mortensen, T. (1950). A Monograph of the Echinoidea. V, 1. Spatangoida I. Protosternata, Meridosternata, Amphisternata I. Palæopneustidæ, Palæostomatidæ, Aëropsidæ, Toxasteridæ, Micrasteridæ, Hemiasteridæ, 432 pp., C. A. Reitzel, Copenhagen.
page(s): 153 [details]
status source Mironov, A. N. 1997. [Holasteroid sea urchins. 4. Echinosigra]. Zoologicheskii Zhurnal 76, 173-186.
page(s): 174 [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Original description This is the most extraordinary of the species of Pourtalesia hitherto known. It is nearly related to P. phiale, but differs from that species in having the anterior part of the test produced into a long and slender neck, at the anterior, somewhat widened, end of which is placed the invagination with the mouth. The posterior half of the test is much higher and thicker, distinctly keeled above and below. Anal snout rather long, a little upwards bending. Spines and pedicellariae mainly as in P. phiale. [details]Type locality S. of Iceland. 843-912 fathoms. (‘Ingolf’-Expedition.) [details]
