Anoplodactylus pycnosoma   (Helfer, 1938)


Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Anoplodactylus pycnosoma  AquaMaps  Data sources: GBIF OBIS
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Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Pycnogonida | Pantopoda | Phoxichilidiidae

Environment: milieu / climate zone / depth range / distribution range Ecology

Reef-associated; depth range 1 - 6 m (Ref. 102570).  Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Indo-West Pacific: New Caledonia; Melanesia and Micronesia.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm

Short description Morphology

Size small, trunk first and second segmentation lines complete, line between third and fourth segments lacking. Lateral processes short, almost touching at bases, glabrous. Neck extension over proboscis very short, ocular tubercle short, eyes well defined. Proboscis robust, short, with prominent ventrolateral tubercles. Abdomen very short, a truncate cone. Chelifores slender as land as proboscis, functional chelae hanging anterior to proboscis mouth, chelae fingers with 4 - 5 tiny teeth. Palps entirely lacking. Ovigers 6 - segmented, third segment longest, without evidence of proximal segmentation, sixth segment a conical bud, no segment with strong setae or spines. Legs short, robust, with very few setae. Tarsus very short, propodus short, robust, well curved, with 3 heel spines, several tiny sole spines, a very long claw, and extremely tiny auxiliaries. Male femoral cement gland openings as 7 - 8 dorsolateral slits proximal to jus past median point of segment (Ref. 9).

Biology     Glossary (e.g. epibenthic)

This is very common species in littoral and shallow depths. It appears in many reports treating collections from the Indo-West Pacific. It has not been collected as yet in the western hemisphere or the west coast of Africa (Ref. 9).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Members of the class Pycnogonida are gonochoric and sexually dimorphic. During copulation, male usually suspends itself beneath the female. Fertilization occurs as the eggs leave the female's ovigers. Males brood the egg masses until they hatch. Life cycle: Eggs hatch into protonymphon larva then to adults.

Main reference References | Coordinator | Collaborators

Child, C.A. 1998. (Ref. 9)

IUCN Red List Status (Ref. 130435: Version 2024-1)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


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Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 16 - 29.2, mean 27.9 (based on 3356 cells).
Price category (Ref. 80766): Unknown.

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