original description
Brandt, J. F. (1834-1835). Prodromus descriptionis animalium ab H. Mertensio observatorum : fascic. I. Polypos, Acalephas Discophoras et Siphonophoras, nec non Echinodermata continens. <em>Recueil des Actes de la Séance Publique de l'Académie Impériale des Sciences de St. Pétersbourg.</em> 1834: 201-275., available online at https://www.biodiversitylibrary.org/page/10765514
page(s): 63 [details] 
original description
(of Allocentrotus Mortensen, 1942) Mortensen, T. (1942). New Echinoidea (Camarodonta). Preliminary notice. <em>Videnskabelige Meddelelser fra Dansk naturhistorisk Forening i København.</em> 106: 225-232.
page(s): 232 [details] Available for editors 
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
Hansson, H. G. (1998). NEAT (North East Atlantic Taxa): Scandinavian Echinodermata Check-List (Comp.). , available online at https://www.gu.se/sites/default/files/2020-10/NEAT%2AEchinodermata.pdf [details] 
From editor or global species database
Original description Different version of the work containing the original description exist, differing in the pagination; in one version Strongylocentrotus is described on p. 63, in the other version on p. 263 [details]
From editor or global species database
Strongylocentrotus droebachiensis - catch of common green urchins
Image from typetaxon
Strongylocentrotus droebachiensis - red variant
Image from typetaxon
Strongylocentrotus droebachiensis - macro
Image from typetaxon
Strongylocentrotus droebachiensis
Image from typetaxon
Strongylocentrotus droebachiensis
Image from typetaxon
Sea urchin (Strongylocentrotus droebachiensis)
Image from typetaxon
Sea urchin (Strongylocentrotus droebachiensis), ventral view
Image from typetaxon
Strongylocentrotus droebachiensis (aboral)
Image from typetaxon
Strongylocentrotus droebachiensis (ambulacral plates)
Image from typetaxon
Strongylocentrotus droebachiensis (test, aboral)
Image from typetaxon
Strongylocentrotus droebachiensis (test, oral)
Image from typetaxon
Strongylocentrotus droebachiensis (aboral, close-up)
Image from typetaxon
Strongylocentrotus droebachiensis (aboral)
Image from typetaxon