Proceedings of the Boston Society of Natural History, Volumen27Boston Society of Natural History., 1897 |
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Términos y frases comunes
appear arenata b-planes band body-wall Boston Bouvé calcareous Caudina cells Ceratinia circular color-patterns color-variations conidae connective tissue connective-tissue layer Cretaceous Cross section cross-fractures Cucumaria Danaidae Danaoid Heliconidae described edge epithelium Eueides Eupterotidae Evotomys feather-fracture fore wing fossils fracture fringe genera genus geology Gryphaea hairs Hamann Heliconius hind wing HIST holothurians inner rufous inner yellow intestine Island Ithomia Ituna joint-plane joints Jurassic larvae Lepidoptera Linn longitudinal muscle Ludwig Lycorea madreporite Melinaea Microtus middle yellow Molpadiidae muscle fibers Muskeget Mystic River Mystic River quarry Napeogenes nerve ring nervures Nolidae Notes nucleus Orth outer Outram Bangs ovum Papilios papillae Peru pigment planes Plate posterior Proc promethea radial canal radial nerve resemblance rocks Scada setae showing side Society species specimens structure surface Synapta tentacles tentacular thorax Thyridia tion Tithorea tubercles tubules volcanic wall wart
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Página 245 - Mayer gives the following laws of color pattern: "(a) Any spot found upon the wing of a butterfly or moth tends to be bilaterally symmetrical, both as regards form and color; and the axis of symmetry is a line passing through the center of the interspace in which the spot is found, parallel to the longitudinal nervures.
Página 242 - ... per cent, and that this oil, according to Gimbert, is a very powerful antiseptic. It will preserve blood and pus as long as carbolic acid (five months and more), and far longer than oil of turpentine. It prevents...
Página 74 - Synopsis of the Marine Invertebrata of Grand Manan : or the region about the mouth of the Bay of Fundy, New Brunswick.
Página 243 - At first the scales growing on the membrane upon or near the veins show a freer development of pigmentary matter, and in this manner would arise a kind of primary or fundamental pattern, namely, a pale ground with darker linear markings, following the course of the veins (Pieris cratcegi).
Página 193 - ... the chance of finding it is certainly not lessened. One of the most evident peculiarities of such a spot as this, in southern New England, is that the dense shade and the abundant evaporation maintain a 'temperature during the hottest summer weather that is far below that of the surrounding country.
Página 238 - This fact enables the interesting observation to be made, that where a Pierid mimics an insect belonging to another family, the pigments in the two cases are chemically quite distinct.
Página 74 - On the Structure of the Immature Ovarian Ovum in the common Fowl and in the Rabbit. To which is appended some Observations upon the Mode of Formation of the Discus Proligerus in the Rabbit, and of the Ovarial Glands or „Egg-tubes
Página 12 - I have counted the tentacles of scores of specimens, I have never found an individual with any other number than fifteen. Doubtless the contracted condition of the specimens examined by the earlier investigators led them to overlook some of the tentacles. A prominent cone-shaped genital papilla is situated in the dorsal interradius 3 or 4 mm. behind the ring of tentacles. It was not to be found in the youngest individuals that I examined, which measured about 40 mm. in length. In the adult it is...
Página 158 - Wacoensis, etc., it must be considered a true Cretaceous form. Its discovery in this connection simply .adds one more to the list of fossils occurring in the Washita division of the Cretaceous of Trans-Pecos Texas, whose close resemblance to well-known Jurassic types would, under any less conclusive evidence of its Cretaceous age, warrant its reference to the Jurassic.
Página 222 - Anniversary Memoirs of the Boston Society of natural history, published in celebration of the fiftieth Anniversary of the Society's foundation 1830—1880.