Cyclorhagida |
Echinorhagata |
Echinoderidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthic; depth range 0 - 1 m (Ref. 335). Subtropical
Eastern Central Pacific: USA.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 0.0185 cm TL (female)
Mid-dorsal spines on segments 6-10, D 7 twice as long as D 6, 8, and 9, longer than D 10; lateral spines on segments 4, 7-12; lateral terminal spines long, 74.6% of the trunk length; lateral terminal accessory spines (of female) prominent, robust, 24.9% of the trunk length, 35.5% of the lateral terminal spine length; trunk relatively long and narrow, cuticle without evidence of hairs or perforation sites; posterior margin of segments with prominent pectinate fringe, especially in mid-trunk region and most apparent on ventral surface; ventral midline of segment 4 strongly cuticularized, lateroventral articulation zones suggested but not in line with zones of more posterior segments; segment 13 with apparent mid-dorsal articulation zone establishing two bilateral terminal tergal plates (Ref. 335).
Inhabits high-energy coarse beach sand (Ref. 335), or coarse calcareous sand (Refs. 1460, 335, 75777). Found in high-energy coarse beach sand (Ref. 335), or coarse calcareous sand (Refs. 1460, 335, 75777).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Adrianov, A.V., C. Murakami and Y. Shirayama. 2002. (Ref. 318)
IUCN Red List Status (Ref. 130435)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Tools
More information
Common namesSynonymsPredatorsReproductionMaturitySpawningFecundityEggsEgg development
Age/SizeGrowthLength-weightLength-lengthMorphologyLarvaeAbundance
Internet sources
Estimates based on models
Price category
Unknown.