Thecacera

Thecacera is a genus of sea slugs, specifically nudibranchs, shell-less marine gastropod mollusks in the family Polyceridae.

Thecacera
A live individual of Rudman's Thecacera species 2, head end towards the left
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Nudibranchia
Family:	Polyceridae
Subfamily:	Polycerinae
Genus:	Thecacera Fleming, 1828[1]
Type species
Thecacera pennigera (Montagu, 1815)

Species

Species in the genus Thecacera include:^[2]

• Thecacera boyla Willan, 1989
• Thecacera darwini Pruvot-Fol, 1950
• Thecacera pacifica Bergh, 1883
• Thecacera pennigera (Montagu, 1815)
• Thecacera picta Baba, 1972
• Thecacera virescens Alder & Hancock, 1851^[3]
• Thecacera vittata Yonow, 1994

• 
  Thecacera pennigera
• 
  Thecacera pacifica
• 
  Thecacera picta
• 
  Rudman's Thecacera species 2 ^[4]