| Penion maximus | |
|---|---|
 | |
| A shell of Penion maximus | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Family: | Austrosiphonidae |
| Genus: | Penion |
| Species: | P. maximus |
| Binomial name | |
| Penion maximus (Tryon, G.W., 1881) | |
Penion maximus is a species of very large predatory sea snail or whelk, commonly known as giant whelk or great whelk, a marine gastropod mollusc in the family Austrosiphonidae. [1]
Penion maximus is the largest species of Penion siphon whelk, and is endemic to Australia. [2] [3] The species could be confused with the sympatric species P. mandarinus , however P. mandarinus is typically smaller and has a smoother shell with a shorter siphonal canal. [2] Their shells are highly coveted due to the intricate designs embedded in onto the shells.
The range of the species extends from waters off Tasmania and Victoria to lower Queensland. [2] [3]
Penion maximus is closely related to another Australian species P. mandarinus . [3] [4] The species have overlapping geographic ranges (sympatry) and may have evolved from a common ancestor via niche differentiation based on prey size and water depth. [4]
Penion cuvierianus is a species of very large predatory sea snail or whelk, commonly called the flaring penion, a marine gastropod mollusc in the family Austrosiphonidae.
Austrofusus glans is a species of medium-sized sea snail or whelk, a marine gastropod mollusc in the family Buccinidae, the true whelks.
Penion sulcatus is a species of medium-to-large predatory marine snail or whelk, commonly called the northern siphon whelk or kākara nui in Māori, belonging to the whelk family Austrosiphonidae.
Penion is a genus of large marine snails, commonly known as siphon whelks, classified within the mollusc family Austrosiphonidae.
Antarctoneptunea benthicola is a species of small-to-medium-sized predatory sea snail or whelk, a marine gastropod mollusc in the family Austrosiphonidae.
Penion chathamensis is a species of very large predatory sea snail or whelk, a marine gastropod mollusc in the family Austrosiphonidae.
Penion ormesi is a species of very large predatory sea snail or whelk, a marine gastropod mollusc in the family Austrosiphonidae.
Buccinulum is a genus of sea snails, marine gastropod molluscs in the whelk family Tudiclidae.
Aeneator is a genus of sea snails, marine gastropod molluscs in the whelk family Tudiclidae.
Buccinulum vittatum is a species of sea snail, a marine gastropod mollusc in the family Tudiclidae.
Cominella maculosa, common name the spotted whelk, is a species of predatory sea snail, a marine gastropod mollusc in the family Cominellidae, the true whelks.
Cominella virgata is a species of predatory sea snail, a marine gastropod mollusc in the family Cominellidae.
Antarctoneptunea is a genus of sea snails, marine gastropod mollusks in the whelk family Austrosiphonidae.
Serratifusus is a genus of sea snails, marine gastropod mollusks in the whelk family Austrosiphonidae.
Kelletia is a genus of large sea snails, whelks, a marine gastropod molluscs in the whelk family Austrosiphonidae.
Penion mandarinus, common name the mandarin penion, southern siphon whelk or Waite's buccinum whelk, is a species of medium-to-large predatory sea snail or whelk, a marine gastropod mollusc in the family Austrosiphonidae.
Kelletia lischkei is a species of large sea snail, or whelk, a marine gastropod mollusc in the family Austrosiphonidae.
Penion proavitus is an extinct species of marine snail or whelk, belonging to the true whelk family Austrosiphonidae.
Penion lineatus is a species of medium-sized marine snail or whelk, belonging to the true whelk family Austrosiphonidae. It was described in 2018.
Mary Morgan-Richards is a New Zealand biologist, and as of 2019 is a full professor at Massey University.
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