Ionella agassizi Bonnier, 1900

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Classification / Names Κοινά ονόματα | Συνώνυμα | CoL | ITIS | WoRMS

Malacostraca | Isopoda | Bopyridae

Environment: milieu / climate zone / εύρος βάθους / distribution range Οικολογία

; εύρος βάθους 0 - 10 m (Αναφ. 87801). Temperate

Distribution Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Εισαγωγές

Southeast Pacific: Probably endemic to Chile.

Length at first maturity / Μέγεθος / Weight / Age

Γεννητική Ωρίμανση: L_m ? range ? - ? cm Max length : 0.5 cm TL αρσενικό/απροσδιόριστο; (Αναφ. 87801); 1 cm TL (female)

Short description Μορφολογία

Females are 0.8 to 1 cm in length and 1.1 to 1.5 cm in width. In both live and preserved specimens, they are whitish-yellowish in color and have tiny dark visible eyes. Its antennae is absent or strongly reduced and the pereopods are small. Oostegites large flaps forming completely enclosed marsupium, which contains thousands of embryos. Males on the other hand are 0.3 to 0.5 in length. They are whitish in color and have visibly small elongated eyes. Pereon segments with small pereopods. Pleotelson is very small, that looks like an inflated tubercle.

It is parasitic on ghost shrimp Neotrypaea uncinata found on sand flats, where it inhabits the branchial chamber (Ref. 87801).

Life cycle and mating behavior Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Eggs | Γονιμότητα | Larvae

Members of the order Isopoda are mostly gonochoric. Mating behavior: Mating usually occurs before and sometimes during the parturial molt. Sperm transfer is indirect. Life cycle: Eggs are brooded in the marsupium, which later hatch into manca postlarva before developing into adults.