Mortensen (1951: p. 263) treated Pseudabatus as subgenus of Abatus because he felt that "the main character on ... [details]
Mortensen (1951: p. 261) favoured the name Abatus elongatus over A. koehleri, arguing that Thiéry's replacement ... [details]
Based on juvenile specimens (largest 11 mm test length, gonopores not yet open); generic and specific attribution ... [details]
Mortensen (1951: 404) say: "In the preliminary reports on the Echinoids of the "Albatross" 1902 and 1906 Agassiz & ... [details]
Mortensen (1951: p. 261) favoured the name Abatus elongatus over A. koehleri, arguing that Thiéry's replacement ... [details]
Generic attribution uncertain. [details]
This genus was established as nomen novum for Perispatangus Fourtau, 1905 beacause of its similar (2-letter ... [details]
Mortensen (1951: p. 263) treated Pseudabatus as subgenus of Abatus because he felt that "the main character on ... [details]
H. L. Clark (1908) described S. pallidus from three small specimens collected from Sagami Bay, Japan. His ... [details]
Erroneously cited as Spatangus subcarinatus and erroneously attributed to Gray, 1845 in the synonymy list of ... [details]
Mortensen (1951: p. 263) treated Pseudabatus as subgenus of Abatus because he felt that "the main character on ... [details]