Spirorchiidae is a family of digenetic

Digenea

Digenea is a subclass within the Platyhelminthes consisting of parasitic flatworms with a syncytial tegument and, usually, two suckers, one ventral and one oral. Adults are particularly common in the digestive tract, but occur throughout the organ systems of all classes of vertebrates...

 trematodes. They are parasites of turtles. Disease caused by them is commonly called spirorchiidiosis.

Genera

Genera in the family Spirorchiidae include:

• Amphiorchis
  • Amphiorchis solus
• Hapalotrema
  • Hapalotrema postorchis
• Learedius
  • Learedius learedi Price, 1934
• Monticellius
  • Monticellius indicum Mehra, 1939
• Neospirorchis
  • Neospirorchis schistosomatoides Price, 1934
• Spirhapalum
  • Spirhapalum siamensis Tkach, Snyder & Vaughan, 2009
• Spirorchis
  • Spirorchis scripta Stunkard, 1923

Hosts

Some species of spirochiids are parasites of freshwater snail Indoplanorbis exustus

Indoplanorbis exustus

Indoplanorbis exustus is a species of air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails. The species is the sole member of its genus and is widely distributed across the tropics. It serves as an important intermediate host for...

.

Cardiovascular parasites Learedius learedi, Hapalotrema postorchis, Monticellius indicum and Amphiorchis solus are parasiting in Caribbean green turtles (Chelonia mydas).

Spirhapalum siamensis is parasiting in the heart of Malayan box turtle (Cuora amboinensis

Cuora amboinensis

The Amboina box turtle , or southeast Asian box turtle is a species of Asian box turtle.It is found in the Nicobar Islands, eastern India , Bangladesh, Myanmar, Thailand, Cambodia, Laos, central and southern Vietnam, West Malaysia, Singapore, Philippines , Indonesia The Amboina box turtle (Cuora...

).