Vietnam or Thailand ? Vote for the TOP Country of the Week !
In both, as in the Bathymetrical regions of the South Atlantic, the Testacea of the depths are generally smaller and less brightly coloured than those inhabiting the shallows. During this voyage notes of the habitats of considerably more than a thousand species of Mollusca and Echinodermata were carefully registered. The following Catalogue is founded on the monograph of Helicidae by Dr. Pfeiffer.
The following notes will serve to record the more prominent facts bearing upon the Bathymetrical distribution of the Testacea collected on the northern coast of Australia, at Port Essington, and on the eastern coast from Cape York to Bass Strait, including the northern ports of Van Diemen's Land. An extensive collection of landshells was made at Madeira.
Other species, members of the same genera, are cast on shore dead. Some seventeen or eighteen localities in this Bathymetrical province were explored by means of the dredge, varying in depth from one to seventeen fathoms.
In 1810, Risso, in his work on the Ichthyology of Nice, laid the foundation of what has since been termed "bathymetrical" distribution, or distribution in depth, by showing that regions of the sea bottom of different depths could be distinguished by the fishes which inhabit them.
Word Of The Day