What people are saying - Write a review
We haven't found any reviews in the usual places.
Other editions - View all
acerate acuate angles animal antennae aperture apex apical appears avicularia bacillar spicules basal base belong blackish body branch British Bryozoa Busk calcareous canal carapace cavity cells central Cephalothorax colour Cumacea curved described diameter Diastylis disk distal distinct dorsal echinating Elytra Eschara fathoms fibres figure flesh-spicule Flustra Foraminifera fore wings fossil fovea G. O. Sars genera genus gland Graptolites Hind wings Hist hydrothecae inch inner margin lateral margin length Lepralia Leucon lines Llandeilo lobes longitudinal Loxosoma luteous membrane millims Miocene Museum Naples operculum orifice outer ovicells pairs peduncle peristome plates Pliocene pores portion posterior Prof pronotum punctured quadriradiates rays rostrum rounded sarcode scales Scutellum second joint segment side skeleton Skeleton-spicule slightly Smitt smooth species specimens spicules spines sponge spots structure surface telson terminal thick third Thorax tion transverse triradiate uropods zocecia
Page 93 - Turbinarise (2) ; Tabulata (1). The paper concluded with remarks on the genera and species represented, from which it appeared that the Coral fauna of Haldon is the northern expression of that of the French and Central European deposits, which are the equivalents of the British Upper Greensand. The Haldon deposit was formed in shallow water, and the corals grew upon the rolled debris of the age. 2. " Notes on Pleurodon affinis, sp. iried., Agassiz, and description of three spines of Cestracionts...
Page 392 - Location of the sectorial tooth. The specialization of one tooth to the exclusion of others as a sectorial, appears to be due to the following causes : It is to be observed in the first place that when a carnivore devours a carcass, it cuts off masses with its sectorials, using them as shears. In so doing it brings the part to be divided to the angle or canthus of the soft walls of the mouth which is at the front of the masseter muscle. At this point, the greatest amount of force is gained, since...
Page 257 - On our present Knowledge of the Invertebrate Fauna of the Lower Carboniferous or Calciferous Sandstone Series of the Edinburgh Neighbourhood, especially of that division known as the Wardie Shales, and on the first appearance of certain Species in the Beds.
Page 176 - THE ANNALS AND MAGAZINE OF NATURAL HISTORY, INCLUDING ZOOLOGY, BOTANY, AND GEOLOGY. MONTHLY, PRICE 2s.
Page 176 - Prof. Leidy stated that in the Remora , or Sucker, from our coast, presented this evening by Mr. Holbrook, he had found a curious parasite. This was inclosed in a compressed oval cyst, pearly white, thick-walled, and about half an inch long, tightly adherent to the intestine of the fish. The cyst contained a flask-shaped, translucent whitish sac, which was feebly contractile and furnished at the narrow end with two minute papillae, which were slowly protruded and retracted. Within this sac-worm,...
Page ii - The sylvan powers Obey our summons ; from their deepest dells The Dryads come, and throw their garlands wild And odorous branches at our feet ; the Nymphs That press with nimble step the mountain-thyme And purple heath-flower come not empty-handed, But scatter round ten thousand forms minute Of velvet moss or lichen, torn from...
Page 90 - President, in the Chair. The following communications were read : — 1. " On the Range of the Mammoth in Space and Time." By Prof. W. Boyd Dawkins, MA, FRS, FGS The author expressed his opinion that the result of the evidence collected since the death of Dr. Falconer has been to establish the view of that paleontologist as to the Mammoth having appeared in Britain before the Glacial epoch.
Page 461 - The modern Nebalia is small, about half an inch in length, with the body compressed, the carapace bivalved as in Limnadia, one of the genuine Phyllopods. There is a large rostrum overhanging the head ; stalked eyes ; and, besides two pairs of antennas and mouth-parts, eight pairs of leaf-like, short, respiratory feet, which are succeeded by swimming feet.
Page 392 - ... following causes. It is to be observed in the first place that when a carnivore devours a carcass, it cuts off masses with its sectorials, using them as shears. In so doing it brings the part to be divided to the angle or canthus of the soft walls of the mouth, which is at the front of the masseter muscle. At this point the greatest amount of force is gained, since the weight is thus brought immediately to the power, which would not be the case were the sectorial situated much in front of the...