Brissopsis lyrifera subsp. capensis Mortensen 1907

• Main Authors: Filander, Zoleka, Griffiths, Charles
• Format: Other/Unknown Material
• Language: unknown
• Published: 2017
• Subjects: Biodiversity; Taxonomy; Animalia; Echinodermata; Echinoidea; Spatangoida; Brissidae; Brissopsis; Brissopsis lyrifera; Brissopsis lyrifera capensis mortensen; 1907; Forbes; Norway; Richards Bay; Iceland
• Online Access: https://zenodo.org/record/6022907; https://doi.org/10.5281/zenodo.6022907

Brissopsis lyrifera capensis Mortensen, 1907 Fig. 65 A–D. Brissopsis lyrifera: A. Agassiz, 1881: 189; Bell, 1904: 175; Döderlein, 1906: 256 –258. Pl. XXXIV, Figs 4–8, Pl. XLIX, Figs 1– 2; H.L. Clark, 1923: 401; H.L. Clark, 1924: 12 –13; H.L. Clark, 1925a: 213 –214; Mortensen, 1951: 387 –389. Pls. XXX, Figs. 1–4, 7–13, Pl. XXXII, Figs 15, 20, 22; Pl. LVII, Fig. 15; Schultz, 2010: 381, Figs 720–721. Brissopsis lyrifera var capensis: Döderlein, 1910: 248. Brissopsis lyrifera capensis: Clark & Courtman-Stock, 1976: 249. Material examined. MBC-A077919; MBC-A077927; MBC-A077910; MBC-A077917; MBC-A077928; MBC- A077923; MBC-A077932; MBC-A077915; MBC-A077914; MBC-A077924; MBC-A077916; MBC-A077930; MBC-A077921; MBC-A077926; MBC-A 022334; MBC-A 022335; MBC-A 022337; MBC-A 022338; MBC- A 022339; MBC-A 022347; MBC-A023305; MBC-A027735; MBC-A077922; MBC-A077912; MBC-A077921; MBC-A077925; MBC-A077918; MBC-A077913; MBC-A077913; MBC-A077911; A23073; A23087; MBC- A077929; MBC-A077931; A23083. Identification. Test heart-shaped; petals straight and divergent. Petals with reduced inner pores. Anterior ambulacrum with differentiated pores, associated with tube feet. Apical disc ethmolytic, with four gonopores. Peripetalous and bilobed subanal fascioles present; apical disc being sub-central; sternal plates tuberculated. Global maximum size. Maximum test length 70 mm. Global distribution. Eastern Atlantic from Norway to Iceland, along European coasts of Mediterranean and southward to Canary Islands and West Africa (Mortensen, 1951; Schultz 2010) at 5–1400 m (Döderlein 1910; Mortensen 1951; Schultz 2010), West and East coast regions of South Africa, Remarks. Samples identified through this study extend previously known distribution eastwards towards Richards Bay and Sodwana Bay. According to Mortensen (1951) there are variations in the size of the posterior petals amongst South African and Atlantic-Mediterranean species. Thus B. lyrifera (Forbes 1841) was separated into two subspecies B. lyrifera capensis (South African subspecies) ...