| Arachnoides | |
|---|---|
 | |
| Arachnoides tenuis | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Echinoidea |
| Order: | Clypeasteroida |
| Family: | Clypeasteridae |
| Genus: | Arachnoides Leske, 1778 [1] |
| Type species | |
| Echinus placenta | |
| Species | |
See text | |
Arachnoides is a genus of sea urchin within the family Clypeasteridae, found in the Indo-Pacific oceans. The base is flat and the upper surface is convex.
The World Register of Marine Species list the following species as being in this genus:- [1]
Arachnoides zelandiaeGray, 1855 New Zealand: Synonym of Fellaster zelandiae (Gray, 1855) [2]
Calliostomatidae is a family of sea snails within the superfamily Trochoidea and the clade Vetigastropoda.
Neritidae, common name the nerites, is a taxonomic family of small to medium-sized saltwater and freshwater snails which have a gill and a distinctive operculum.
Amoria is a taxonomic genus of medium-sized predatory marine gastropod in the family Volutidae.
Livonia is a genus of medium-sized Indo-Pacific predatory sea snails, marine gastropod mollusks in the family Volutidae, the volutes.
Papawera zelandiae, common name the white bubble shell, is a species of medium-sized sea snail or bubble snail, a marine opisthobranch gastropod mollusc in the family Haminoeidae, the bubble snails.
Dendrodoris is a genus of nudibranchs, marine gastropod molluscs in the family Dendrodorididae.
Rhachistia is a genus of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Cerastidae.
Haminoea is a genus of medium-sized sea snails or bubble snails, marine opisthobranch gastropod molluscs in the family Haminoeidae, the haminoea bubble snails, part of the clade Cephalaspidea, the headshield slugs and bubble snails.
Scurria is a genus of sea snails, the true limpets, marine gastropod mollusks in the subfamily Lottiinae of the family Lottiidae.
Hastula is a genus of sea snails, marine gastropod mollusks in the family Terebridae, the auger snails.
Pisania is a genus of marine whelk in the family Pisaniidae. Some species prey on barnacles.
Peristernia is a genus of sea snails, marine gastropod mollusks in the subfamily Peristerniinae of the family Fasciolariidae, the spindle snails, the tulip snails and their allies.
Amoria lineola is a species of sea snail, a marine gastropod mollusc in the family Volutidae, the volutes.
Clypeomorus is a genus of sea snails, marine gastropod mollusks in the subfamily Cerithiinae of the family Cerithiidae.
Ammotrophus arachnoides is a species of sand dollar of the family Arachnoididea. Their external skeleton, known as a test, is covered with spines. It belongs to the genus Ammotrophus and lives in the sea off southern Australia. Ammotrophus arachnoides was first scientifically described in 1938 by Hubert Clark.
Melarhaphe is a monotypic genus of sea snails, marine gastropod mollusks in the family Littorinidae, the winkles or periwinkles.
Arachnoides placenta is a species of sea urchin of the family Clypeasteridae. Their armour is covered with spines. It is placed in the genus Arachnoides and lives in the sea. Arachnoides placenta was first scientifically described in 1758 by Carl Linnaeus.
Arachnoides tenuis is a species of sea urchin of the family Clypeasteridae. Their armour is covered with spines. It is placed in the genus Arachnoides and lives in the sea. Arachnoides tenuis was first scientifically described in 1938 by Hubert Lyman Clark.
Fellaster is a genus of echinoderms belonging to the family Clypeasteridae.
Talochlamys is a genus of bivalves belonging to th subfamily Pedinae of thee family Pectinidae.
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