Zetela semisculpta ( Martens, 1904 )

Herbert, David G., 2015, An annotated catalogue and bibliography of the taxonomy, synonymy and distribution of the Recent Vetigastropoda of South Africa (Mollusca), Zootaxa 4049 (1), pp. 1-98 : 49-50

Zetela semisculpta ( Martens, 1904) —revised taxonomy—new combination

Cyclostrema (Tubiola) semisculptum Martens, 1904: 49 , pl. 5, fig. 6. E.A. Smith, 1906: 53. Type loc.: Valdivia St’n 112 (35°32ʹS: 18°20ʹE), 2750 m [slope off Agulhas Bank, 135 km south of Cape Point], erroneous fide Thiele (1925: 14) = Valdivia St’n 103 (35°10ʹS, 23°02ʹE), 500 m [slope off Agulhas Bank, 120 km south of Knysna]; two syntypes in ZMB.

Solariella semisculpta — Thiele, 1925: 14 [48].

Solariella chuni Thiele, 1925: 17 [51], pl. 1[13], fig. 24. Type loc.: Valdivia St’n 83 (25°25.3ʹS: 6°12.4ʹE), no depth given [well off Namibia]; two syntypes plus one fragment in ZMB. Syn. nov.

Solariella intermissa Thiele, 1925: 15 [49], pl. 1[13], fig. 19. Barnard, 1963a: 240. Kensley, 1973: 42, fig. 102. Herbert, 1987c: 334, figs 104–117. Type loc.: Valdivia St’n 103 (35°10.5ʹS: 23°02ʹE), 500 m [slope off Agulhas Bank, 120 km south of Knysna]; holotype in ZMB. Syn. nov.

Solariella gilchristi Barnard, 1963a: 242 , fig. 11d. Kensley, 1973: 42, fig. 101. Type loc.: off Buffalo River (East London), 310 fathoms [567 m]; lectotype and paralectotype in SAMC (A3605), designated by Herbert (1987c: 336, figs 104–106). Syn. nov.

Solariella macleari Barnard, 1963a: 241 , fig. 11c. Kensley, 1973: 42, fig. 104. Type loc.: Cape Point N 89° E, distant 36 miles, 700 fathoms [1280 m]; lectotype and paralectotypes in SAMC (A7417), designated by Herbert (1987c: 336, fig. 116). Syn. nov.

Solariella sp.— Barnard, 1963a: 242.

Not Spectamen semisculptum: Herbert, 1987c: 369 , figs 120k, 179–183 [= Spectamen martensi sp. n., see above].

Distribution. Southern Zululand (off Port Durnford) to Namibia (Walvis Ridge); 340–1280 m (living 450–1280 m).

Notes. Subsequent to my revision of the South African Solariellidae ( Herbert 1987c) , I have been able to examine the type material of Cyclostrema semisculptum and found that the specimens represent juveniles of the species previously known as ‘ Solariella ’ intermissa . The types of both taxa were from the same Valdivia station. As the earlier name, semisculptum has precedence over intermissa . The species discussed under the name Spectamen semisculptum by Herbert (1987c) represents an undescribed taxon (see Spectamen martensi above). The morphology of the shell and radula of this species ( Herbert 1987c) strongly suggest that it is referable to Zetela rather than Solariella (cf. Marshall 1999; Williams et al. 2013).