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Post by another specialist on Jun 6, 2005 15:03:02 GMT
Telespiza ypsilon
Olson & James 1991
Holocene of Hawaii, Molokai and Maui, Hawaiian Islands
Primary materials: Holotype: maxilla
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 7:23:06 GMT
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Post by another specialist on Nov 8, 2005 7:23:32 GMT
commonly called the Maui Nui Finch
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Post by another specialist on Jul 22, 2006 8:42:22 GMT
Telespiga ypsilon, new species
(Figs. 11 K-M, 12A, 13A)
"Psittirostra (Telespyza), small species" Olson and James, 1982b:39, 45; 1984:772.
Holotype: Complete maxilla, USNM 253711 (Fig. 11 K-M). Collected 12 or 19
July 1976 by Storrs L. Olson and Joan Aftdem.
Type locality: Site 20, Ilio Point, Molokai, Hawaiian Islands.
Distribution: Molokai: Ilio Point. Maui: Puu Naio Cave.
Etymology: Greek, ypsilon, twentieth letter of the Greek alphabet, in reference
to the number of the type locality. The name is a neuter noun in apposition.
Measurements (ram) ofholotype: Dorsal length, 9.3; length from jugal articulation,
7.3; length from anterior narial opening, 5.3; maximum ventral width, 5.5;
length of narial opening, 2.9; height of narial opening, 2.2; height through lateral
nasal bar, 4.1; minimum width of dorsal nasal bar, 1.3. For additional measurements,
see Table 2.
Paratypes: Molokai, Ilio Point: complete maxilla with tip slightly abraded,
USNM 253712; nearly complete maxilla lacking tip, USNM 254698; maxilla
lacking right nasal bar and ventral rim of right narial opening, USNM 254850;
maxilla lacking right nasal bar, USNM 445779; maxilla lacking tip and left nasal
bar, BPBM 178140; maxilla lacking right nasal bar, BPBM 178141; mandible
lacking parts of the symphysis and right ramus, USNM 254736 (Figs. 12A, 13A);
mandible lacking parts of both rami, USNM 255013.
Maui, Puu Naio Cave: The portion of a maxilla anterior to the narial openings,
USNM 445780; mandibular symphysis, USNM 445781.
Measurements ofparatypes: See Tables 2 and 3 and Fig. 10.
Diagnosis: The bill is smaller overall, and the narial openings are somewhat
enlarged relative to the size of the maxilla, compared to Telespiza cantans, T.
ultima, or T. persecutrix.
Remarks: T. ypsilon was by far the commonest passeme prey item of the longlegged
owl, Grallistrix geleches, in the pellet deposits at Ilio Point on Molokai.
One hundred and thirty-one pieces of the bill of this species were identified from
Sites 16 and 20, making up 53% of the minimum number of individual drepanidines,
which suggests that T. ypsilon was fairly abundant in this harsh, arid
environment. The species was not restricted to extremely arid coastal habitats,
however, as the specimens from Puu Naio Cave on Maui originated at about 305
m elevation in a region of more moderate climate. |
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Post by another specialist on Jul 22, 2006 8:43:39 GMT
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Post by another specialist on Jul 22, 2006 8:43:55 GMT
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Post by another specialist on Jul 22, 2006 8:44:33 GMT
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