Schizaster lacunosus ( Linnaeus, 1758 ), Linnaeus, 1758

Filander, Zoleka & Griffiths, Charles, 2017, Illustrated guide to the echinoid (Echinodermata: Echinoidea) fauna of South Africa, Zootaxa 4296 (1), pp. 1-72: 65

publication ID

https://doi.org/10.11646/zootaxa.4296.1.1

publication LSID

lsid:zoobank.org:pub:EFE86EDD-D170-4D97-87D9-3125400713EC

persistent identifier

http://treatment.plazi.org/id/03FE87F0-FFE7-FF9C-FF57-FED8FE21F89D

treatment provided by

Plazi

scientific name

Schizaster lacunosus ( Linnaeus, 1758 )
status

 

Schizaster lacunosus ( Linnaeus, 1758)  

Fig. 75 View FIGURE 75 A –D.

Schizaster ventricosus: A. Agassiz, 1872   –1874: 158, 614.

Schizaster japonicus: A. Agassiz, 1881: 202   , Pl. XXXVI, Figs 8–13 View FIGURE 8 View FIGURE 9 View FIGURE 10 View FIGURE 11 View FIGURE 12 View FIGURE 13 . Pl. XLIII, Fig. 26 View FIGURE 26 . Pl. LXV, Figs 7–10 View FIGURE 7 View FIGURE 8 View FIGURE 9 View FIGURE 10 ; Döderlein, 1906: 254.

Schizaster lacunosus: H.L. Clark, 1924: 12   ; H.L. Clark, 1925a: 210; Clark & Courtman-Stock, 1976: 248.

Ova (Aplospatangus) lacunosus: Schultz, 2010: 443   , Fig. 826.

Material examined. MBC-A 022232; MBC-A 022888; MBC-A 022889; MBC-A023318; MBC-A027744; MBC- A027745; MBC-A077988; MBC-A077987; MBC-A077767; MBC-A077990; MBC-A077989.

Identification. Test heart-shaped, pointed towards the end, very high posteriorly, with indented anterior ambulacra, adjoining interambulacra rising as vertical wall covering frontal pore-pairs, posterior interambulacra keeled forming a hook above periproct; genital pores two.

Global maximum size. Maximum test length 82 mm.

Global distribution. Japan, East Coast of Africa extending to South coast of South Africa , Northeast Australia ( Mortensen 1951), at 5–198 m depth.  

Remarks. Samples identified through this study extend previously known distribution southwards to off Port Elizabeth; and illustrate that species may be found in deeper waters of 198 m than the previously thought 90 m. Very similar to Brisaster capensis   , but differs in number of gonopores, of which S. lacunosus   has two and B. capensis   three. Other differences that distinguish the two species are the posterior keel and the two vertical walls formed by the adjoining anterior interambulacra in S. lacunosus   . Schultz (2010) reported this species as Ova (Aplospatangus) lacunosus   on the basis of fossil type known to have four gonopores, thus resulting in the genus Schizaster   being synonymized with Paraster   and species with two gonopores being transferred to genus Ova   . However, this change has not been implemented on the WED database and this study follows the taxonomic naming of the WED database.

Kingdom

Animalia

Phylum

Echinodermata

Class

Echinoidea

Order

Spatangoida

Family

Schizasteridae

Genus

Schizaster

Loc

Schizaster lacunosus ( Linnaeus, 1758 )

Filander, Zoleka & Griffiths, Charles 2017
2017
Loc

Ova (Aplospatangus) lacunosus: Schultz, 2010 : 443

Schultz 2010: 443
2010
Loc

Schizaster lacunosus: H.L. Clark, 1924 : 12

Clark 1976: 248
Clark 1925: 210
Clark 1924: 12
1924
Loc

Schizaster japonicus:

Doderlein 1906: 254
Agassiz 1881: 202
1881