The Echinoid Directory

• Test ovate with shallow anterior sulcus; depressed in profile with flattened base and top.
• Apical disc ethmolytic, with 4 gonopores.
• Anterior ambulacrum wide and slightly sunken; pore-pairs and tube-feet specialized.
• Tubercles adjacent to frontal groove enlarged and in rows.
• Other ambulacra petaloid and flush. Widening towards apex. Columns often forming continuous arc laterally.
• Periproct submarginal on short vertical truncate face. May be deeply invaginated.
• Peristome wider than long; kidney-shaped.
• Labral plate narrow and elongate; only just contacting sternal plates; paired sternal plates narrow and triangular with tuberculation confined to posterior part only.
• Aboral tuberculation heterogenous with scattered coarse tubercules in all but the posterior interambulacrum. Primary tubercles sunken in camellae.
• Oral tubercles prominent laterally and arranged in distinct rows. Areoles sunken and parapet typically helically spiraled.
• Well-developed bilobed subanal fasciole and inner fasciole.

Oligocene to Recent, Indo-Pacific.

Shallow water sands to shell gravels - infaunal.

Lovenia hystrix Desor, in Agassiz & Desor, 1847, p. 11 [=Spatangus elongatus Gray, 1845, p. 436] by monotypy.

• L. elongata (Gray, 1845); Miocene to Recent, Indo-West Pacific.
• L. cordiformis Agassiz, 1872; Recent, West coast of America.
• L. hawaiiensis Mortensen, 1950; Recent, Hawaii.
• L. camarota Clark, 1917; Recent, North Australia.
• L. subcarinata (Gray, 1845); Recent, Indo-West Pacific.
• L. doederleini Mortensen, 1950; Recent, Malay region.
• L. gregalis Alcock, 1893; Recent, Indo-West Pacific.
• L. trifolis Koehler, 1914; Recent, Indo-West Pacific.
• L. grisea Agassiz & Clark, 1907; Recent, Hawaii.
• L. sulcata (Haime, 1853); Lower Oligocene, France.
• L. aegyptiaca Fourtau, 1920; Upper Miocene, Egypt.
• L. forbesii (Tenison Woods, 1862); Lower to Middle Miocene, Australia.
• L. woodsii (Etheridge, 1875); Lower to Middle Miocene, Australia.
• L. bagheerae Irwin & Archbold, 1994; Miocene (Tortonian), southern Australia.
• L.mortenseni Ctyoky, 1965; Middle Miocene, Czech Republic.
• L. hemphilli Israesky,
• Plus others...

Spatangoida, Micrasterina, Loveniidae.

Recent species are reviewed and described in Mortensen (1951). It differs from Breynia in having no peripetalous fasciole, and in having the anterior part of the paired sternal plates naked. A detailed description of fossil Australian species is given by Irwin & Archbold (1994).

Agassiz, L. & Desor, P. J. E. 1846-1847. Catalogue raisonné des familles, des genres, et des espèces de la classe des échinodermes. Annales des Sciences Naturelles, Troisième Série, Zoologie : 6 (1846): 305-374, pls. 15-16; 7 (1847): 129-168; 8 (1847): 5-35, 355-380.
 

Mortensen, T. 1951. A Monograph of the Echinoidea. V. Spatangoida 2. C. A. Reitzel, Copenhagen.

Ctyroky, P. 1965. Lovenia mortenseni n. sp. a new species of spatangoid echinoid from the Miocene of the Vienna Basin. Sbornik Geologicych Ved. Paleontologie 5, 107-121, pls 1-6.

Irwin, R. P. & Archbold, N. W. 1994. The spatangoid echinoid Lovenia from the Tertiary of southeastern Australia. Proceedings of the Royal Society of Victoria 106, 1-16.