Trochozonites (Crenatinanina) crenulata ( Germain, 1905 )

Muratov, Igor V., 2010, Terrestrial molluscs of Cabo Delgado and adjacent inland areas of north-eastern Mozambique, African Invertebrates 51 (2), pp. 255-255 : 281-282

publication ID

https://doi.org/ 10.5733/afin.051.0203

persistent identifier

https://treatment.plazi.org/id/03C62100-D27B-BA3B-4D0A-4711FE1DFE2C

treatment provided by

Felipe

scientific name

Trochozonites (Crenatinanina) crenulata ( Germain, 1905 )
status

 

Trochozonites (Crenatinanina) crenulata ( Germain, 1905) View in CoL

Figs 51 View Figs 46–52 , 53–55 View Figs 53–55 Trochonanina crenulata: Germain 1905: 484 (Environs de Zanzibar; 11.0× 15.5 mm). Trochonanina (Crenatinanina) crenulata: Germain 1920: 75 , pl. 4, figs 3–5 ( Zanzibar; 10.0× 15.5 mm,

erroneously said to be “grandeur naturelle” in figures captions).

This appears to be a rediscovery of the species collected by Raffray in 1891 and not seen since 1920. The type, according to Germain in MNHN, could not be found there ( Rowson 2007: 451) .

Embryonic whorls (destroyed in the type and thus not previously described) with weak close-set microscopic axial riblets cut by much finer spiral lines.

All shells found at the three stations on Cabo Delgado are proportionally higher than the type, but some worn adult shells are up to 10.3× 15.2 mm, approaching the size and proportions of the type. The shell illustrated in Figs 53–55 View Figs 53–55 is faded, smaller than the type but similar in shape .

MNHN

Museum National d'Histoire Naturelle

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