|Apposition compound eyes of Spongicoloides koehleri (Crustacea: Spongicolidae) are derived by neoteny|Gaten, E. (2007). Apposition compound eyes of Spongicoloides koehleri (Crustacea: Spongicolidae) are derived by neoteny. J. Mar. Biol. Ass. U.K. 87(2): 483-486. dx.doi.org/10.1017/S002531540705597X
In: Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge. ISSN 0025-3154, more
Wedding shrimps, Spongicoloides koehleri, spend the adult phase of their life cycle within the cavity of a hexactinellid sponge. Although there is little light at the depths at which the sponges are found, the shrimps do not use the highly sensitive reflecting superposition optics commonly found in other shrimp-like decapods. Instead they have apposition eyes which are virtually free of shielding pigment. It is proposed that this is due to the paedomorphic retention of the larval optics through the process of neoteny.