Semicassis pyrum, Helmet shell
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Semicassis pyrum   (Lamarck, 1822)

Helmet shell
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drawing shows typical species in Cassidae.

Classification / Names आम नाम | उपशब्द | CoL | ITIS | WoRMS

Gastropoda | Littorinimorpha | Cassidae

Environment: milieu / climate zone / गहराई सीमा / distribution range पारिस्थितिकी

.  Subtropical

Distribution देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | भूमिका

Southwest Pacific: Kermadec, New Zealand, and Australia.

Length at first maturity / आकार / Weight / Age

परिपक्व अवधि: Lm ?  range ? - ? cm

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ epibenthic)

One dead shell collected on beach (Ref. 88739).

Life cycle and mating behavior परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | Eggs | Fecundity | Larvae

Members of the order Neotaenioglossa are mostly gonochoric and broadcast spawners. Life cycle: Embryos develop into planktonic trocophore larvae and later into juvenile veligers before becoming fully grown adults.

Main reference संदर्भ | संयोजक | सहयोगीयो

Oliver, W.R.B. 1914 The Mollusca of the Kermadec Islands. Trans. N.Z. Inst. 47:509-568. (संदर्भ 88739)

IUCN Red List Status (संदर्भ 130435: Version 2025-1)


CITES status (संदर्भ 108899)

Not Evaluated

CMS (संदर्भ 116361)

Not Evaluated

Threat to humans

  Harmless

Human uses


| FishSource |

साधन

अधिक जानकारी

Trophic Ecology
Food items (preys)
संघटक आहार
आहार खपत
परभक्षी
पारिस्थितिकी
Population dynamics
बाढ़
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
बहुतायत
Life cycle
पुनरुत्पत्ति
परिपक्व अवधि
Fecundity
मछलीऔ का अंडे देना
Eggs
Egg development
Larvae
Physiology
Oxygen consumption
Human Related
Stamps, coins, misc.
Taxonomy
आम नाम
उपशब्द
आकृति विज्ञान
तस्वीरे
संदर्भ

इंटरनेट स्रोत

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, खोज) | Zoological Record

Estimates based on models