United States or France ? Vote for the TOP Country of the Week !
I am of opinion that the P. marinus and the P. fluviatilis are distinct species, for the following reasons: 1st. Because the latter stays with us the whole year, while the former only ascends the rivers to spawn, and then returns to the sea immediately. 2nd. Not having one of the larger kind to refer to, I am unable to point out any specific difference of form.
It is included in Professor Ansted's list, but only marked as occurring in Guernsey. There are three specimens, an adult and two young, in the Museum. COMMON TERN. Sterna fluviatilis, Naumann. French, "Hirondelle de mer," "Pierre garin." The Common Tern is a regular but not numerous spring and autumn visitant to the Islands, some remaining to breed.
That common muscle, the Unio complanalus, or more properly fluviatilis, left in the spring by the musk-rat upon rocks and stumps, appears to have been an important article of food with the Indians.
Being water shells, and not such common objects as land shells, these have no popular names. The river limpets are called ancylus fluviatilis. Some are no larger than a yew berry, and are shaped like a Phrygian cap; but they "stick" with proper limpet-like tenacity.
All this alluvium was evidently of fluviatile origin, for, in the interstices between the pebbles, the Ancylus fluviatilis and other freshwater shells were abundant.
Fucus ex Nova Guinea Fluviatilis Pisanae J.B. foliis. These plants are so apt to vary in their leaves, according to their different states, that it is hard to say this is distinct from the last. Willughby's History of Fishes under the name of gurabuca; it differs something, in the fins especially, from Piso's figure of the guarapuca.
Newport has described the course of this concentration in insects; and by Rathke it has been traced in crustaceans. In the early stages of the Astacus fluviatilis, or common cray-fish, there is a pair of separate ganglia to each ring. Of the fourteen pairs belonging to the head and thorax, the three pairs in advance of the mouth consolidate into one mass to form the brain, or cephalic ganglion.
While I could not find out from the lay people I asked that any ague was there, I now understand it is all through that locality. Observation at Wellesley, Mass., Aug. 20, 1877. No incrustation found. Examined the vegetation found on the margin of the Ridge Hills Farm pond. Among other things I found an Anguillula fluviatilis. Abundance of microspores, bacteria. Some of the Protococci.
I had the previous winter made a small quantity of lime by burning the shells of the Unio fluviatilis, which our river affords, for the sake of the experiment; so that I knew where my materials came from. I might have got good limestone within a mile or two and burned it myself, if I had cared to do so.
Day cloudy, foggy, hot. Green earth in water way from pump near cemetery. Anabaina plentiful. Diatoms, Oscillatoriaceae. Polycoccus species. Pollen, Cosmarium, Leptothrix, Gemiasma, old sporangia, spores many. Fungi belonging to fruit. Puccinia. Anguillula fluviatilis. Mr. Smith's blood. Spores, enlarged white corpuscles. Two sporangia? Gemiasma dark brown, black. Mr.
Word Of The Day