8. _Genus_--CORONULA, _Lamarck_. (Darwin, 'Balanidæ,' p. 397.)
Valvæ testæ 6; æquali latitudine; parietes tenues, profundè plicati,
plicis cavitates infrà solùm apertas efficientibus; valvæ operculares
orificio testæ multo minores. Cetaceis affixa.
A Monograph on the Sub-class Cirripedia (Volume 2 of 2) The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., etc. · 第 194 / 417 题