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HABs taxon details

Gonyaulax taylorii M.C.Carbonell-Moore, 1996

233583  (urn:lsid:marinespecies.org:taxname:233583)

accepted
Species
marine
Carbonell-Moore, M.C. (1996). On Spiraulax jolliffei (Murray et Whitting) Kofoid and Gonyaulax fusiformis Graham (Dinophyceae). <em>Botanica Marina.</em> 39, 347-370., available online at https://doi.org/10.1515/botm.1996.39.1-6.347 [details]   
Harmful effect Producer of yessotoxin and homoyessotoxin (Bahía Mejillones, Chile) (Álvarez et al. 2016).   
Harmful effect Producer of yessotoxin and homoyessotoxin (Bahía Mejillones, Chile) (Álvarez et al. 2016).  [details]

Identification The dinoflagellate Gonyaulax monacantha var minor sensu Balech (1971) has a shorter 5” as its anterior suture contacts...  
Identification The dinoflagellate Gonyaulax monacantha var minor sensu Balech (1971) has a shorter 5” as its anterior suture contacts the right side of 6” posteriorly to the posterior edge of 1”. Also, Gonyaulax taylorii has a much taller 5”. Plate 4’ in Balech’s fig. 127 does not have a ventral pore dividing it into two parts. Based on the remainder of the figures, the specimens studied by Balech (1971) were probably G. taylorii and the suture between plates 3’ and 5” was drawn in error. There is not enough information on the description of this variety by Pavillard (1916) to establish whether or not it is the species assayed here. The dinoflagellate Gonyaulax subulata sensu Taylor 1976 has a 6” quadrangular as Gonyaulax buxus Balech 1967. Additionally, G. taylorii has a 6” triangular with a pointed anterior edge in contact to the posterior end of plate adjacent to the right side of 1’. The present authors agree that Gonyaulax jolliffei Murray and Whitting (1899) is not Gonyaulax taylorii as its plate 6” is wide and trapezoidal, has a large 1a, the cingulum has no overhang and the hypotheca is pointed instead of having a large spine. [details]
Guiry, M.D. & Guiry, G.M. (2024). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Gonyaulax taylorii M.C.Carbonell-Moore, 1996. Accessed through: Lundholm, N.; Churro, C.; Escalera, L.; Fraga, S.; Hoppenrath, M.; Iwataki, M.; Larsen, J.; Mertens, K.; Moestrup, Ø.; Murray, S.; Tillmann, U.; Zingone, A. (Eds) (2009 onwards) IOC-UNESCO Taxonomic Reference List of Harmful Micro Algae at: https://www.marinespecies.org/hab/aphia.php?p=taxdetails&id=233583 on 2024-05-23
Lundholm, N.; Churro, C.; Escalera, L.; Fraga, S.; Hoppenrath, M.; Iwataki, M.; Larsen, J.; Mertens, K.; Moestrup, Ø.; Murray, S.; Tillmann, U.; Zingone, A. (Eds) (2009 onwards). IOC-UNESCO Taxonomic Reference List of Harmful Micro Algae. Gonyaulax taylorii M.C.Carbonell-Moore, 1996. Accessed at: https://www.marinespecies.org/hab/aphia.php?p=taxdetails&id=233583 on 2024-05-23
Date
action
by
2006-07-27 06:59:07Z
created
Camba Reu, Cibran
2012-10-23 12:06:30Z
checked
2015-06-26 12:00:51Z
changed

original description Carbonell-Moore, M.C. (1996). On Spiraulax jolliffei (Murray et Whitting) Kofoid and Gonyaulax fusiformis Graham (Dinophyceae). <em>Botanica Marina.</em> 39, 347-370., available online at https://doi.org/10.1515/botm.1996.39.1-6.347 [details]   

basis of record Gómez, F. (2005). A list of free-living dinoflagellate species in the world's oceans. <em>Acta Bot. Croat.</em> 64(1): 129-212. [details]  OpenAccess publication 

additional source Guiry, M.D. & Guiry, G.M. (2024). AlgaeBase. <em>World-wide electronic publication, National University of Ireland, Galway.</em> searched on YYYY-MM-DD., available online at http://www.algaebase.org [details]   

additional source Álvarez, G.; Uribe, E.; Regueiro, J.; Blanco, J.; Fraga, S. (2016). Gonyaulax taylorii, a new yessotoxins-producer dinoflagellate species from Chilean waters. <em>Harmful Algae.</em> 58: 8-15., available online at https://doi.org/10.1016/j.hal.2016.07.006
note: Reports yessotoxins [details]  Available for editors  PDF available 
From regional or thematic species database
Description Cells 30–36 mm wide and 45–50 long with conspicuous apical horn of about half the length of the epitheca with pronounced shoulders, and one or two antapical spines of variable shape, able to be subdivided evenly. Cingulum displaced about 1.5 its width with a marked overhang. The theca is strong and heavily ornamented with many round depressions, most of which have a pore, especially abundant inthose near the cingulum. The plate formula is Po, 4’, 0a, 6”, ?s, 6c, 5”’, 0p, 2”’’. Po plate is hardly visible, as it is hidden by the apical plates. The ventral side of the apical horn is formed by two long and very narrow plates: 1’ which has a single line of round depressions,and 4’ with a very conspicuous ventral pore that divides this plate in two parts (named here 4’a and 4’p) that hence look like two plates, as after dissection they normally appear separated. Plates 2’ and 3’ are wider than 1’ and 4’ and form most of the apical horn of the epitheca. Precingular plates are much bigger than those of the apical series. Plate 6” is triangular and the pointed anterior end contacts S.a., 1’ and 4’ by very short sutures and almost coincident with the level of the anterior side of the left side of the cingulum. It was not possible to dissect all the sulcal plates. Sulcal anterior plate has an anterior part that penetrates the epitheca contacting 1”, 1’, and 6” and, sometimes 4’ when 6” is not in contact to 1’ as the posterior end of 4’ is between them. The anterior left sulcal (S.s.a.) appears as the first postcingular plate, but following Balech (1971) and Amorim et al. (2013), it should be considered as S.s.a although it appears as a left wing out of the sulcus and hence this species has 5 postcingular plates. This plate, S.s.a., shares the right side of the triangular 1”’ with plate 1”” which other authors considered as 1p. Width of the S.s.a. varies among cells. The second antapical plate 2”” has, in its right side, a strong spine of variable length that sometimes may appear longitudinally divided in two. A shorter spine may be present in the left side of 2”” and the posterior end of 1”” may form a wing that looks like another spine.
 [details]

Harmful effect Producer of yessotoxin and homoyessotoxin (Bahía Mejillones, Chile) (Álvarez et al. 2016).  [details]

Identification The dinoflagellate Gonyaulax monacantha var minor sensu Balech (1971) has a shorter 5” as its anterior suture contacts the right side of 6” posteriorly to the posterior edge of 1”. Also, Gonyaulax taylorii has a much taller 5”. Plate 4’ in Balech’s fig. 127 does not have a ventral pore dividing it into two parts. Based on the remainder of the figures, the specimens studied by Balech (1971) were probably G. taylorii and the suture between plates 3’ and 5” was drawn in error. There is not enough information on the description of this variety by Pavillard (1916) to establish whether or not it is the species assayed here. The dinoflagellate Gonyaulax subulata sensu Taylor 1976 has a 6” quadrangular as Gonyaulax buxus Balech 1967. Additionally, G. taylorii has a 6” triangular with a pointed anterior edge in contact to the posterior end of plate adjacent to the right side of 1’. The present authors agree that Gonyaulax jolliffei Murray and Whitting (1899) is not Gonyaulax taylorii as its plate 6” is wide and trapezoidal, has a large 1a, the cingulum has no overhang and the hypotheca is pointed instead of having a large spine. [details]
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