Microscopic anterior view of a nematode specimen from the SEPS imaging archive
Morphology · Collections · Imaging · Systematics

Society for
Evolutionary
Parasite Systematics

Advancing parasite systematics through field biology, specimen-linked imaging, computational tools, and collaborative research.

Inaugural specimenNematodaAnterior region · SEPS microscopy archive
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Research program

Field evidence, specimens, and evolutionary questions.

SEPS studies parasite diversity and movement across hosts and landscapes, with particular attention to invasive systems, emerging risks, and the diagnostic morphology needed to recognize them.

Scanning electron micrograph of parasite attachment structures
Diagnostic structures become durable evidence when image, specimen, scale, and interpretation remain linked.
The digital collection

A visual reference built to last.

The long-term SEPS collection will organize whole specimens, diagnostic structures, host associations, preparation methods, and evidence status into permanent specimen pages.

Gallery viewClean, carefully composed imagery for discovery and education.
Scientific viewScale, labels, annotations, metadata, and review state retained.
Evidence viewWhat supports the identification—and what still limits it.
Explore the evidence framework
Research instruments

Software serves the specimen—not the other way around.

SEPS computational tools organize images, localize structures, preserve uncertainty, and support expert review. They are research instruments within a broader systematics program.

Collaborate

Help build the reference collection parasites deserve.

SEPS welcomes collaboration with taxonomists, museums, field biologists, microscopists, veterinarians, molecular laboratories, agencies, educators, and students.