Traditionally, dicyemids use at times been grouped by using a Orthonectida in the Mesozoa; however, molecular evolution suggest that dicyemids can be further closely related the Platyhelminthes (flatworms).

Grownup dicyemids zero in length from either Cipher.One-9.Zero millimetre, & it may be easy viewed across the weak microscope. Dicyemids display eutely, the problem where for each one grown personal of the given coinage has the equivalent total of cells, making cell total a utile distinguishing character. A organism's structure is very simple: one axial cell is surrounded by the jacket of ciliate cells. the prior region of the organism is termed a "calotte" & functions to bond a dicyemid to folds on the surface of its host's renal appendages.

Dicyemids survive around two asexual and sexual forms. A previous predominate inside juvenile person & unformed hosts, & a latter inside matured hosts. the nonsexual stage is termed a nematogen; it produces worm-shaped larvae which mature through straight development to form additional nematogens. Nematogens proliferate inside immature cephalopod mollusk, filling a kidneys.

When the contagion ages, possibly when a nematogens email a certain density, worm-shaped larvae mature to form rhombogens, a intimate life stage, like than additional nematogens. This kinda density-responsive generative period is remindful of the asexual reproduction of sporocysts or even rediae inside larval trematode infections of snails. When using a fluke nonsexual stages, two or three nematogens might ordinarily exist as detected around older hosts. Their work can be to increase a people of a organisms to keep higher sustaining the incubation of the unsuspecting hosts.

Rhombogens contain hermaphroditic infusorigens which make infusoriform larvae. These larvae possess the super distinctive morphology, floating astir using ciliate rings that resemble headlamp. It has yearn been assumed that this sexually produced infusoriform, which is freed whenever a unsuspecting hosts eliminates water from either a kidneys, is two a dissemination & a infective stage. A mechanism of sickness, still, remains unknown, when come a results, in case any, of dicyemids in their hosts.

A few a share of the dicyemid life span can be attached to temperate benthic environments, where it occur inside greatest abundance. When dicyemids keep around now & again been witnessed in a tropics, the illness rates come occasionally quite moo, and numerous likely unsuspecting hosts mintage are non contaminated. Dicyemids keep close at hand never been reported from either truly pelagic cephalopod mollusk, world health organization instead persons the bloodsucking ciliate fauna. Virtually all dicyemid mintage come recovered from either just a single or even ii persons coinage. Piece non strictly persons specific, virtually all dicyemids come sole noticed around two or three closely related hosts.

Dicyemids come divided into ii families, Conocyemidae & Dicyemidae.