As in the preceding, but with suckers on the tentacles.
The wall-eyed pike taken in 1902 were valued at $16,915 (210,936 lb); white fish, $5777 (80,191 lb); pickerel, $4144 (51,711 lb); yellow perch, $ 2 575 (43,9 1 7 lb); sturgeon, $20 5 1 (1 5,59 0 lb), and suckers, $ 18 54 (37,375 lb); other varieties taken in smaller quantities included smelt, sun-fish and eels.
In relation to their parasitic habit one or two suckers are always developed, the one at the anterior and the other at the posterior end of the body.
23 and 25); and, fourthly, in structure, being hollow or solid, as in the polyp. In some medusae, for instance, the remarkable deep-sea family Pectyllidae, the tentacles may bear suckers, by which the animal may attach itself temporarily.
Other genera are Aglauropsis, Gossea and Gonionemus; the last named bears adhesive suckers on the tentacles.