Bulletin of the American Museum of Natural HistoryAmerican Museum of Natural History, 1921 Comprises articles on geology, paleontology, mammalogy, ornithology, entomology, and anthropology. |
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Términos y frases comunes
Alligator alveoli Amer ascidians atrial backward Bermuda bones branchial sac Breadth of Snout broad Bronn's Tier-reich Caiman cavity characters colony Comp concave considerably cranial table crocodilians Crocodilus americanus curved dentary diameter Didemnum distal dorsal extend forward external borders external narial aperture fifth maxillary teeth foramen foramen magnum fourth frontal gavial Gavialosuchus genus gonad Hartmeyer Herdman individuals inferior internal longitudinal vessels irregular ischium jugals lacrymals languets lateral borders left side Length mandible mandibular teeth maxillary teeth median line Michaelsen narrow nasal bones nasals notch occupies orbits outline palate palatine fenestræ papillæ parietal Phallusia pits Polycitor portion posterior border posterior ends posterior processes prefrontals pterygoids quadrato-jugals region relatively ribs ridge sclerops short skull slender slightly Sluiter species specimens spicules splenial squamosals stigmata Styela superior view supraoccipital supratemporal fenestræ sutures symphysis tentacles Tomistoma tooth Traustedt Trididemnum usually view of skull zooids Zool
Pasajes populares
Página iii - For the purposes of this section the jurisdiction of the marshal is co-extensive with the city of New York. The comptroller of the city of New York...
Página 542 - Halobcena. digging less deeply and making fewer turns in its burrow, and seems to remain therein during the day, being exclusively nocturnal in its habits when near its nest. Lays one egg, as large as a pigeon's, white, and not sharply pointed ; first found by me December 10. I did not succeed in finding any young up to January 10, the date of our departure. I heard much from the whalers and others of the great diving powers of these birds, which their structure certainly seems to indicate, without...
Página 6 - NOBLE, GK 1918. The amphibians collected by the American Museum expedition to Nicaragua in 1916.
Página iii - American Museum of Natural History Seventy-seventh Street and Central Park West, New York City BOARD OF TRUSTEES President.
Página 176 - The contiguous borders of the sixth and seventh, the seventh and eighth, and the eighth and ninth, costal cartilages articulate with each other by small smooth, oblong facets.
Página 542 - On the first landing of our party at Kerguelen Island, this bird was one of the two most commonly heard at night, and seen fluttering about the hillside. Its note is somewhat similar to the mew of a cat, with a marked rising inflection of sound. It cannot rise from level ground in flight, but, once in the air, flies strongly and rapidly, with a rapidly fluttering motion of the wings, very like the flight of the common English sparrow. It burrows in the same localities as Halobcena.
Página 217 - Each prefrontal bone is traversed close to its anterior extremity by the ends of a strong transverse ridge, which then curve round and pass forwards on the lachrymal and maxillary bones, to subside opposite the ninth tooth. The anterior nasal aperture is not divided by bone. The vomers, separated by a longitudinal suture, appear in the palate between the premaxillaries and the palatine plates of the maxillaries.
Página 248 - ... at an angle of about 45° with the longitudinal axis of the...
Página 492 - Recent additions to the Molluscan fauna of New England and the adjacent waters, with notes on other species.
Página 595 - I cannot reconcile any Yunnan skin examined by me with Walden's description which calls for a bird with "the cheeks and sides of the neck pure white, and the breast, flanks and ventral region ashy grey." All specimens from Yunnan as well as those from western Szechwan that I have seen have yellow cheeks and sides of the neck, and are strongly washed with yellow all over the under parts, and appear to me indistinguishable from birds from the eastern Himalayas. Zappey, however, took in Hupch and eastern...