| Pilsbryspira aterrima | |
|---|---|
 | |
| Apertural view of a shell of Pilsbryspira aterrima | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Superfamily: | Conoidea |
| Family: | Pseudomelatomidae |
| Genus: | Pilsbryspira |
| Species: | P. aterrima |
| Binomial name | |
| Pilsbryspira aterrima (Sowerby I, 1834) | |
| Synonyms [1] | |
| |
Pilsbryspira aterrima is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae. [1]
The length of the shell varies between 8 mm and 20 mm.
The shell has a very dark chocolate color, with sometimes a narrow white line above the periphery, but this is usually absent. The spire is lengthened or short. The whorls are rudely prominently keeled on the periphery, which is nodulous. Below the keel are a few raised revolving lines, occasionally broken up into granules.
The great variation in the proportions of this shell has caused a number of synonyms to be made. [2]
This species occurs in the Pacific Ocean from Mazatlan, Mexico to Northern Peru
Crassispira is a genus of small predatory sea snails with narrow, high-spired shells, marine gastropod mollusks in the family Pseudomelatomidae. They first appeared in the fossil record approximately 48.6 million years ago during the Eocene epoch, and still exist in the present day.
Conus fergusoni, common name the Ferguson's cone, is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.
Conus obscurus, common name the obscure cone, is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.
Crassispira maura, common name the dark-coloured pleurotoma, is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.
Crassispira rudis, common name the rustic pleurotoma, is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.
Crassispira turricula, common name the turriculated pleurotoma, is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.
Pilsbryspira bacchia is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.
Pilsbryspira collaris is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.
Pilsbryspira flucki is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.
Pilsbryspira leucocyma, common name the white-knobbed turret, is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.
Elaeocyma splendidula is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Kylix rugifera is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.
Pilsbryspira is a genus of small predatory sea snails, marine gastropod mollusks in the family Pseudomelatomidae.
Calliostoma perfragile is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.
Vexillum macandrewi is a species of small sea snail, marine gastropod mollusk in the family Costellariidae, the ribbed miters.
Cerithium novaehollandiae is a species of sea snail, a marine gastropod mollusk in the family Cerithiidae.
Stomatella duplicata is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Pseudominolia articulata is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Macrarene californica, common name the Californian liotia, is a species of sea snail, a marine gastropod mollusk in the family Liotiidae.
Circumstella devexa is a species of sea snail, a marine gastropod mollusk in the family Liotiidae.
This article incorporates text from this source, which is in the public domain .