Heterostigma (tunicate)

Heterostigma is a genus of ascidian tunicates in the family Pyuridae.

Heterostigma
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Subphylum:	Tunicata
Class:	Ascidiacea
Order:	Stolidobranchia
Family:	Pyuridae
Genus:	Heterostigma Ärnbäck-Christie-Linde, 1924
Species
See text

Species within the genus Heterostigma include:^[1]

• Heterostigma fagei Monniot C. & Monniot F., 1961
• Heterostigma gonochorica Monniot F., 1965
• Heterostigma mediterranea Pérès, 1958
• Heterostigma melitensis Monniot F. & Monniot C., 1976
• Heterostigma reptans Monniot C. & Monniot F., 1963
• Heterostigma separ Ärnbäck, 1924

Species names currently considered to be synonyms:

• Heterostigma gravellophila Peres, 1955: synonym of Cratostigma gravellophila (Pérès, 1955)
• Heterostigma singulare (Van Name, 1912): synonym of Cratostigma singularis (Van Name, 1912)
• Heterostigma singularis (Van Name, 1912): synonym of Cratostigma singularis (Van Name, 1912)