Dear Shelling Friends,

The good Dr. Harry Lee had this posting rejected by conch-l, so hopefully
this mechanism works better.

Dear John and Alan,

Patella Linnaeus, 1758 is typified by P. vulgata Linnaeus, 1758 by the
subsequent designation of Fleming, 1818.

Scutellastra H. and A. Adams, 1854 (vol. 1, p. 466) has "Patella gorgonica
Humphrey" as its type, subsequently thus designated by Powell (1938).
Actually, the binomen Patella gorgonica is properly attributed to da Costa,
1771 (see Whitehead, 1977), and the taxon is a consensus synonym of Patella
barbara Linnaeus, 1758.

Ancistromesus Dall, 1871 is monotypic and based on Patella mexicana Broderip
and G.B. Sowerby I, 1829.

The three generic units differ principally on anatomic features. However, in
their molecular genetic analysis, Koufopanou et al. (1999) found that
Ancistromesus fell out with Scutellastra, and they accordingly placed those
two genera in synonymy

Adams, H. and A. Adams, 1853-1858. The genera of Recent Mollusca arranged
according to their organization. John van Voorst, London. [published in 35
parts comprising 3 volumes]:
vol. 1: xl + pp. 1-484.
vol. 2: Pp. 1-661. [incl. account of publication dates for vols. 1 and 2 on
p. 661]
vol. 3: (i) + 138 pls. with facing pl. explanations.

da Costa, E.M. 1770-1771. Conchology, or natural history of shells. London,
6 parts, 12 pls.
Dall, W. H., 1871. On the Limpets; with special reference to the species of
the west coast of America, and to a more natural classification of the
group. Am. J. Conch., 6(3):227-282.
Fleming, J., 1818. Conchology. Supplement to the of the Encyclopaedia
Britannica 3: 284-314.

Koufopanou, V., DG. Reid, S.A. Ridgway, and H. Thomas, 1999. A Molecular
Phylogeny of the Patellid Limpets (Gastropoda: Patellidae) and Its
Implications for the Origins of Their Antitropical Distribution. Molecular
Phylogenetics and Evolution 11(1): 138-156. Feb. Available on-line at <
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1692379/pdf/44UA1YG5WP2NBVEQ_353
_1645.pdf >.

Powell, A.W.B. 1973. The patellid limpets of the world (Patellidae).
Indo-Pacific Mollusca 3(15): 75-200.
Whitehead, P.J.P. 1977. Emanuel Mendes da Costa (1717-1791) and the
Conchology, or natural history of shells. Bull. B.M.(N.H.) Historical series
G(1):1-23

Harry

At 09:24 PM 1/28/2011, you wrote:

John,

Myra Keen's Sea Shells of Tropical West America, 2nd Ed. 1971 on page 322
used the genus Ancistromesus.  Carol Skoglund's Panamaic Province Molluscan
Literature Additions and Changes 1971 through 2000 III Gastropoda (The
Festivus Vol XXXIII March 28, 202 Supplement page 7 drops the Ancistromesus
genus for Scutellastra H. & A. Adams, 1854 referencing Ridgeway, et. al.
1998. A cladistic phylogeny of the family Patellidae (Mollusca: Gastropoda).
Philosophical Transactions of the Royal Society of London B 353:1645-1671.

Alan

________________________________________
From: Conchologists List [ mailto:[log in to unmask]] On Behalf Of
John

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