Palaemobdella ornata

External morphology

Small leeches (length up to 12 mm); one pair of cup-shaped (sometimestriangular or round) eyespots on II (in some cases, eyespots are invisible but can be detectedhistologically as aggregations of visual cells); characteristic dorsal pigmentation patterns with deepchocolate brown ground color, yellow or white longitudinal medial band and lateral yellow or whiteband or large spots, two or four series of yellow or white spots at a2 (outer paramarginal or outerparamarginal and outer paramedian position); posterior sucker with yellow or white edge and a series oflight spots along the margin (Figure S5); body with 66-67 annuli, mid-body somites triannulate; dorsumis densely covered with small, closely set papillae; mouth pore is subterminal; gonopores separated by two annuli:ale gonopore on XI a3 and female gonopore on XII a2

Internal morphology

one pair of compact salivary glands; seven pairs of crop caeca; six pairs of testisacs;

Habitat & range

Habitat

Freshwater

Region

Asia

Recorded from

Southern Taiwan

Biology

Shrimp and fish parasite

Junior synonyms

Placobdella okai