Petromyzon

They also have a round suctorial mouth, with horny teeth inside it; by means of this they attach themselves by sucking to fishes, stones, and other objects (hence the name Petromyzon = stone-sucker).

The Evolution of Man — Volume 2 Ernst Heinrich Philipp August Haeckel 1876

Similarly, in North America the invasion of the Great Lakes by the lamprey (Petromyzon marinus), first seen in Lake Erie in 1921, led to the collapse of a number of fisheries following its establishment and first known breeding in the 1930s.

Effects of climate change on the biodiversity of the Arctic 2009

The sea lamprey (Petromyzon marinus) is a predacious, eel-like fish native to the coastal regions of the Atlantic Ocean.

Exotic species 2007

Family Petromyzontidae sea lamprey, Petromyzon marinus

Trout and Salmon of North America Robert J. Behnke 2002

Family Petromyzontidae sea lamprey, Petromyzon marinus

Trout and Salmon of North America Robert J. Behnke 2002

Family Petromyzontidae sea lamprey, Petromyzon marinus

Trout and Salmon of North America Robert J. Behnke 2002

Family Petromyzontidae sea lamprey, Petromyzon marinus

Trout and Salmon of North America Robert J. Behnke 2002

Müller has to be content with a reference to the state of things in _Ammocoetes_ (which, by the way, he did not know to be the young of _Petromyzon_).

Form and Function A Contribution to the History of Animal Morphology

The dancer with only one functional canal in each ear moves in only one plane, and neither it nor Petromyzon is able to move far in a straight line (11 p. 444).

The Dancing Mouse A Study in Animal Behavior Robert M. Yerkes 1916

This fact he connected with his observation that the fish Petromyzon, which possesses only two canals, moves in only two spatial dimensions.

The Dancing Mouse A Study in Animal Behavior Robert M. Yerkes 1916