Warning: DOMDocument::load(): SSL operation failed with code 1. OpenSSL Error messages:
error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol in C:\Apache24\htdocs\includes\SpeciesSummary.lib.php on line 1236
Warning: DOMDocument::load(): Failed to enable crypto in C:\Apache24\htdocs\includes\SpeciesSummary.lib.php on line 1236
Warning: DOMDocument::load(https://sealifebase.nrm.se/webservice/AquaMaps/getAMap.php?genus=Chaetopleura&species=gemma): failed to open stream: operation failed in C:\Apache24\htdocs\includes\SpeciesSummary.lib.php on line 1236
Warning: DOMDocument::load(): I/O warning : failed to load external entity "https://sealifebase.nrm.se/webservice/AquaMaps/getAMap.php?genus=Chaetopleura&species=gemma" in C:\Apache24\htdocs\includes\SpeciesSummary.lib.php on line 1236
Body: Elongate oval. Tegmentum color: Variable, may be orange, dark red, greyish brown, with or without large patches of black; Some brightly colored specimens have tail valves that are completely black. Sculpture: Radiating, often branching rows of large granules on the head valve (30-36 rows) and lateral areas (5-8), the rows usually not reaching the apex. Central areas: Fine, close-set lines of granules, the lines becoming larger and further apart towards the outer margins of the valves. Postmucronal area: Scarce, scattered granules. Mucro: Submedian in younger specimens; subterminal in full-grown specimens. Girdle: Rather narrow, evenly orange-brown or greyish brown; with spicules of varying types and sizes; a marginal fringe of straight spicules (290). Valves: Range from bright orange with black tail valve (and white spot) to ashy green with same markings (Ref. 296).
Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the class Polyplacophora are mostly gonochoric. Life cycle: Eggs hatch into lecitotrophic planktonic trocophore larvae (no veliger stage) which later metamorphose and settle on the bottom as young adults.