Waldo
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Ordo: Veneroida
Familia: Galeommatidae
Name
Waldo Nicol, 1966 – Wikispecies link – Pensoft Profile
- Waldo Nicol 1966[1]. Type species (original designation) Lepton parasiticus Dall, 1876. Recent, Antarctica.
Description
Shell small (length less than 5 mm), ovate to trapezoidal, extremely thin, fragile, translucent to opaque, gaping ventrally and on anterior and posterior ends; sculpture of commarginal striae, weak radial ribs in some; periostracum thin to thick, translucent to white; hinge plate narrow, adults edentate; ligament internal; mantle papillate, reflected, covering most of outer shell surface; long, slender mantle tentacles extend well past shell margin; foot elongate, thin, triangular to cylindrical, heel strong to absent; with one demibranch on each side.
Discussion
Zelaya and Ituarte (2002)[2] revived the use and understanding of this genus, with the redescription of the type species, Waldo parasiticus, and the description of a new species: Waldo trapezialis. They described, for the first time, the gross anatomy of members of the genus and suggested a possible position within the Galeommatoidea. All species are likely to be obligate commensals with echinoid echinoderms. Two additional species were described from the southwestern Atlantic Ocean (Zelaya and Ituarte 2013[3]).
Taxon Treatment
- Valentich-Scott, P; Ó Foighil, D; Li, J; 2013: Where’s Waldo? A new commensal species, Waldo arthuri (Mollusca, Bivalvia, Galeommatidae), from the Northeastern Pacific Ocean ZooKeys, 316: 67-80. doi
Other References
- ↑ Nicol N (1966) Description, ecology and geographic distribution of some Antarctic pelecypods. Bulletin of American Palaeontology, 51 (231): 1-102.
- ↑ Zelaya D, Ituarte C (2002) The identity of Waldo parasiticus (Dall, 1876) and description of Waldo trapezialis new species (Bivalvia: Galleomatoidea [sic]). The Nautilus 116: 109-117.
- ↑ Zelaya D, Ituarte C (2013) Two new species of Waldo Nicol 1966 from sub-Antarctic waters (Bivalvia: Galeommatoidea). Marine Biology Research, 9 (8): 776-784. doi: 10.1080/17451000.2013.765584
