Pseudione brattstroemi Stuardo, Vega and Céspedes, 1986

Pardo, Luis Miguel, Boyko, Christopher B. & Mantelatto, Fernando L., 2009, Description of a new species of Asymmetrione (Isopoda: Bopyridae: Pseudioninae) infesting the hermit crab Paguristes tomentosus (Anomura: Diogenidae) from Peru, with a key to species and a review of southeastern Pacific bopyrids, Journal of Natural History 43 (33 - 34), pp. 2041-2055 : 2050

Pseudione brattstroemi Stuardo, Vega and Céspedes, 1986

Remarks

Pseudione brattstroemi parasitizes the ghost shrimps Neotrypaea uncinata and Notiax brachyophthalma ( Stuardo et al. 1986a, 1986b; Muñoz 1997). Muñoz and Olmos (2007) suggested that Stuardo et al. (1986a, 1986b) might have misidentified the host species based on the high host-specificity of the parasites. However, no overall pattern of the degree of host-specificity has ever been demonstrated for bopyrids (one species has been found on 13 different hosts, see Boyko and Williams (2009)) and, in fact, Muñoz and Olmos (2007) cited the same two hosts for Ione ovata without similar comments. Prevalence was 10.8% on N. brachyophthalma ( Muñoz 1997) and varies between 10% (n = 170) and 20% (n = unknown) on N. uncinata , being higher in juvenile size classes ( Stuardo et al. 1986a). This parasite has been recorded in both the intertidal and shallow subtidal environment ( Stuardo et al. 1986a).