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Post by another specialist on Jun 6, 2005 15:10:31 GMT
Aidemedia lutetiae
Olson & James 1991
Holocene of Molokai, Hawaiian Islands
Primary materials: Holotype: mandibula
Secondary materials: Paratypes: maxillae, mandibula
Storrs L. Olson & Helen F. James,
Descriptions of thirty-two new species of birds from the Hawaiian Islands: Part II. Passeriformes
Ornithological Monographs 46 (1991)
The American Ornithologists' Union, Washington D.C.
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Post by another specialist on Nov 8, 2005 8:09:56 GMT
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Post by another specialist on Nov 8, 2005 8:10:25 GMT
commonly called Maui Nui Icterid-like Gaper
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Post by another specialist on Jul 22, 2006 18:01:53 GMT
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Post by another specialist on Jul 22, 2006 18:02:30 GMT
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Post by another specialist on Jul 22, 2006 18:03:05 GMT
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Post by another specialist on Jul 22, 2006 18:06:50 GMT
Aidemedia lutetiae, new species
(Figs. 28D-G, 29A, 30C)
"Icterid-like gaper, Molokai" Olson and James, 1982b:41, 45; 1984:772.
Holotype: Mandible with slight damage to the tip and mandibular foramina,
BBM-X 147441 (Figs. 29A, 30C). Collected between September 1972 and January
1974 by Joan Aidem.
Type locality: Site 10, Moomomi dunes, Molokai, Hawaiian Islands.
Distribution: Molokai: Moomoral dunes. Maul: Puu Naio Cave, Lua Lepo, and
Puu Makua Cave.
Etymology: Latin, of Lutetia, the ancient Gallic capital of the Parisii, in allusion
to the fact that members of this species must have spent their lives in gapery.
Measurements ofholotype: See Table 11.
Paratypes: Molokai, Moomomi dunes: two maxillae, both lacking lateral nasal
bars, BBM-X 152622 and BPBM 175622 (Fig. 28D, F, G); a mandible lacking
the posterior half of the left ramus, USNM 445818.
Maul, Puu Naio Cave: Maxilla lacking right lateral nasal bar, USNM 445815;
the posterior halfofa right mandibular ramus, USNM 445817. Lua Lepo: Maxilla
lacking the left lateral nasal bar, USNM 445816.
Measurements of paratypes: See Table 11.
Diagnosis: This species is distinguished from A. chascax and A. zanclops by its
shorter, very straight bill and by having the dorsal maxilla flattened. The fiat
surface extends anteriorly from the dorsal nasal bar until it becomes indistinct
about mid-way to the tip. A. lutetiae is further distinguished from A. chascax by
having the mandibular symphysis angled slightly downward relative to the middle
part of the ramus.
Remarks: The bill of A. lutetiae resembles that of meadowlarks of the genus
Sturnella (Icteridae), which also have long, straight bills with pronounced retroarticular
processes on the mandible and a similarly flattened upper surface of the
maxilla. We are confident that this similarity of bill shapes is correctly attributed
to convergence rather than to genealogical relationship. Icterids possess a distinctive
flange on the mandibular tomium that Aidemedia lacks. Characters of
Aidemedia that occur commonly in drepanidines but not in icterids are the
relatively long mandibular symphysis, the lack of a distinct intercotylar tubercle
on the mandible, and the excavated ventral surface of the maxilla. elibrary.unm.edu/sora/om/om046.pdf. |
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