Mazocraeidea

Mazocraeidea
File:Heteromicrocotyloides megaspinosus Body.jpg
Heteromicrocotyloides megaspinosus (Heteromicrocotylidae)
Scientific classification Edit this classification
Kingdom:	Animalia
Phylum:	Platyhelminthes
Class:	Monogenea
Subclass:	Polyopisthocotylea
Order:	Mazocraeidea Bykhovsky, 1957
Families
See text

Mazocraeidea is an order of flatworms in the subclass Polyopisthocotylea within the class Monogenea.

The species of this order have various structures in the clamps of their posterior attachment organ, including additional sclerites in the Gastrocotylidae and related families. However, these additional sclerites, and even the clamps themselves, are lacking in certain members of the family Protomicrocotylidae.

File:Journal.pone.0079155.g003 Clamps in various genera of Protomicrocotylidae.png

Clamps in various genera of Protomicrocotylidae. Black: additional sclerite, characteristic of the Mazocraeidea

Families

According to PESI:

• Anthocotylidae Bychowsky, 1957
• Axinidae Monticelli, 1903
• Chauhaneidae Euzet & Trilles, 1960
• Diclidophoridae Fuhrmann, 1928
• Diplozoidae
• Discocotylidae Price, 1936
• Gotocotylidae Yamaguti, 1963
• Heteraxinidae Unnithan, 1957
• Hexostomatidae Price, 1936
• Mazocraeidae Price, 1936
• Microcotylidae Taschenberg, 1879
• Octolabeidae
• Plectanocotylidae Monticelli, 1903
• Protomicrocotylidae Johnston & Tiegs, 1922
• Pyragraphoridae Yamaguti, 1963

According to the World Register of Marine Species:

• Allodiscocotylidae
• Allopyragraphoridae
• Anchorophoridae
• Anthocotylidae
• Axinidae
• Bychowskicotylidae
• Chauhaneidae
• Diclidophoridae
• Diplozoidae
• Discocotylidae
• Gastrocotylidae
• Gotocotylidae
• Heteraxinidae
• Heteromicrocotylidae
• Hexostomatidae
• Macrovalvitrematidae
• Mazocraeidae
• Megamicrocotylidae
• Microcotylidae
• Monaxinoididae
• Neothoracocotylidae
• Octolabeidae
• Paramonaxinidae
• Plectanocotylidae
• Protomicrocotylidae
• Pseudodiclidophoridae
• Pterinotrematidae
• Pyragraphoridae
• Thoracocotylidae