Description
The shell size varies between 15 mm and 20 mm
 | This section needs expansion. You can help by adding to it. (April 2010) |
| Azumamorula mutica | |
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| Species: | A. mutica |
| Binomial name | |
| Azumamorula mutica (Lamarck, 1816) | |
| Synonyms [1] | |
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Azumamorula mutica, common name the smooth ricinula, is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails. [1] It is the only species in genus Azumamorula.
The shell size varies between 15 mm and 20 mm
| | This section needs expansion. You can help by adding to it. (April 2010) |
This species is distributed in the Indian Ocean along Madagascar, the Mascarene basin, Réunion, and along Eastern Australia.
This species was originally named Ricinula mutica by Lamarck in 1816 [2] , grouping it with species that are now mostly in Drupa and Morula. [lower-alpha 1] In 1823, Dall defined two new genera, Drupina and Morulina, to hold species of Drupa and Morula having simple non-plaited columnellae. He chose R. mutica as the type species for Morulina. [lower-alpha 2] [3]
Thiele in 1931 and Wenz in 1941 had placed Morulina into Drupa. In 1968, Emerson found that the teeth on the radula of D. mutica had an unusual shape. As a result, he desired to split it out to its own genus, but the name Morulina was already taken as a genus of arthropod. Thus he introduced a new name Azumamorula, recognising Masao Azuma who had extracted the radula specimen. [4]
In 2004, Houart placed Azumamorula and Oppomorus as subgenera of Morula , and moved Morula from subfamily Rapaninae to Ergalataxinae. [5] [6] However, in 2013, a phylogenetic study of the sequences for four genes indicated that Morula (Morula)sensu stricto was polyphyletic, and Morula (Oppomorus) was a separate clade. [7] The relevant genes from A. mutica haven't been sequenced, but it's unlikely to be part of a more-restricted Morula–Habromorula group. As of 2020, Houart lists Azumamorula as a separate genus [8] and Molluscabase classes the combination Azumamorula mutica as "accepted". [9]
Muricidae is a large and varied taxonomic family of small to large predatory sea snails, marine gastropod mollusks, commonly known as murex snails or rock snails. With over 1,700 living species, the Muricidae represent almost 10% of the Neogastropoda. Additionally, 1,200 fossil species have been recognized. Numerous subfamilies are recognized, although experts disagree about the subfamily divisions and the definitions of the genera. Many muricids have unusual shells which are considered attractive by shell collectors and by interior designers.
Rapaninae is a subfamily of predatory sea snails, marine gastropod mollusks in the family Muricidae.
Dicathais is a genus of predatory sea snails, marine gastropod molluscs in the family Muricidae, the rock snails. This genus is monotypic; the only species in it is Dicathais orbita, common name the white rock shell or cart-rut shell, found round the coasts of Australia and New Zealand.
Drupa clathrata, common name : the clathrate drupe, is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Morula whiteheadae is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails. The species was named in honour of Thora Whitehead.
Muricodrupa anaxares is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails. Before 2019, it was classified as Morula anaxares.
Claremontiella nodulosa, common name: the blackberry drupe, is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Morula uva is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Morula zebrina is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Semiricinula turbinoides is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Cronia is a genus of sea snails, marine gastropod mollusks in the family Muricidae, the murex snails or rock snails.
Drupa is a genus of sea snails, marine gastropod mollusks in the family Muricidae, the murex snails or rock snails. It occurs in the Indo-Pacific.
Morula is a genus of small, predatory sea snails, marine gastropod mollusks in the subfalily Ergalataxinae of the family Muricidae, the murex snails or rock snails.
Purpura is a genus of sea snails, marine gastropod mollusks in the subfamily Rapaninae of the family Muricidae, the murex snails or rock snails.
Ricinula is a genus of predatory sea snails, marinegastropod mollusks in the family Muricidae, the murex snails or rock snails.
Ergalataxinae is a taxonomic subfamily of small to medium-sized predatory sea snails, marine gastropod mollusks within the family Muricidae, the rock snails. In this subfamily, the aragonitic shell has 0–2 varices.
Nassarius conoidalis, common name the cone-shaped Nassa or the jewelled dog whelk, is a species of sea snail, a marine gastropod mollusc in the family Nassariidae, the nassa mud snails.
Oppomorus funiculatus is a species of sea snail, a marine gastropod mollusk, in the family Muricidae, the murex snails or rock snails.
Tenguella is a genus of small, predatory sea snails, marine gastropod molluscs in the family Muricidae, the murex snails or rock snails.
Claremontiella is a genus of small, predatory sea snails, related to the genera Tenguella and Muricodrupa. Its members are marine gastropod molluscs in the family Muricidae, the murex snails or rock snails.
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