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A Revision of the Genus Eratoidea Weinkauff, 1879 (Gastropoda: Marginellidae)

Series: Novapex Hors Serie Volume: 8

By: Tony McCleery(Author)

111 pages, 11 colour & 35 b/w plates with 458 colour & b/w photos

Société Belge de Malacologie

Paperback | Jan 2011 | #202913
Availability: Usually dispatched within 2-3 weeks Details
NHBS Price: £82.50 $108/€94 approx

About this book

The genus Eratoidea Weinkauff, 1879 is revised and its phylogenic relationship to other genera of the Marginellini Fleming, 1828, a tribe in the Marginellidae, is discussed. The genus currently comprises thirteen described species: Marginella margarita Kiener, 1834, type species of the genus Eratoidea; M. hematita Kiener, 1834; M. sulcata d'Orbigny, 1842 (= M. striata Sowerby II, 1846, non Laseron, 1957); M scalaris Jousseaume, 1875 (= Marginella janeiroensis E. A. Smith, 1915); M. watsoni Dall, 1881; M. costulata Thiele, 1925; M. fernandinae Dall, 1927; M. microgonia Dall, 1927; M. lasallei Talavera & Princz, 1985; Dentimargo costata Bozzetti, 1997; D. sinuosa Bozzetti, 1997.

Thirty one new species and three new phena, one considered to be a form of Eratoidea sulcata and two considered to be forms of E. margarita, are described for the first time. In an attempt to deal with the morphological disparity of the genus, all species and forms are arranged into nine morphological species groups as follows:
- Eratoidea levisa group: E. levisa n. sp., E. glarea n. sp., E. diatreta n. sp., E. phillipsi n. sp., E. ponsia n. sp., E. infera n. sp., E. statiola n. sp., E. tayronata n. sp.
- Eratoidea sulcata group: E. sulcata (d'Orbigny, 1842), E. sotaventensis n. sp., E. fuikensis n. sp., E. gorda n. sp., E. viequesa n. sp., E. cf. E. sulcata, E. unionensis n. sp., E. rugata n. sp.
- Eratoidea lasallei group: E. lasallei (Talavera & Princz, 1984), E. copiosa n. sp., E. ampla n. sp., E. estensis. n. sp., E. perspicua n. sp., E. brevisa n. sp., E. rugosa n. sp., E. rosarioensis n. sp.. E. recta n. sp., E. acuta n. sp.
- Eratoidea acutulla group: E. acutulla n. sp., E. aciesa n. sp.
- Eratoidea margarita group: E. margarita (Kiener, 1834), E. lozii n. sp., E. cf E. margarita form A, E. cf. E. margarita form B.
- Eratoidea hematita group: E. hematita (Kiener, 1834), E. cochensis n. sp., E. ranguanaensis n. sp., E. pustulata n. sp., E. rohusta n. sp., E. grandis n. sp.
- Eratoidea watsoni group: E. watsoni (Dall, 1881), E. fernandinae (Dall, 1927).
- Eratoidea scalaris group: E. scalaris (Jousseaume, 1875), E. janeiroensis (Smith 1915).
- Eratoidea costulata group: E. costulata (Thiele, 1925), E. costata (Bozzetti, 1997), E. sinuosa (Bozzetti, 1997), E. boyeri (Bozzetti, 1994).

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