What is "squatarola helvetica"

Beetlehead \Bee"tle*head`\, n. [Beetle a mallet + head.]

1. A stupid fellow; a blockhead.
   --Sir W. Scott.

2. (Zo["o]l.) The black-bellied plover, or bullhead ( Squatarola helvetica). See Plover.

Bullhead \Bull"head`\, n.

1. (Zo["o]l.)

   1. A fresh-water fish of many species, of the genus Uranidea, esp. Uranidea gobio of Europe, and Uranidea Richardsoni of the United States; -- called also miller's thumb.

   2. In America, several species of Amiurus; -- called also catfish, horned pout, and bullpout.

   3. A marine fish of the genus Cottus; the sculpin.

2. (Zo["o]l.)

   1. The black-bellied plover ( Squatarola helvetica); -- called also beetlehead.

   2. The golden plover.

3. A stupid fellow; a lubber. [Colloq.]
   --Jonson.

4. (Zo["o]l.) A small black water insect.
   --E. Phillips.

   Bullhead whiting (Zo["o]l.), the kingfish of Florida ( Menticirrus alburnus).