Overview

Comprehensive Description

Biology/Natural History: This species does not range as high in the intertidal as does N. ostrina, but higher than does N. lamellosa. Its main prey is Mytilus spp, and secondarily it feeds on barnacles such as Semibalanus cariosus. It drills shells by softening them with a secretion from the foot, then drilling through with the radula. It usually takes 1-2 days to drill and eat a prey individual. Breeding is in spring and summer. Females attach their eggs to rocks in flask-shaped capsules ("sea oats"), each of which may contain 15-55 eggs. Some of the eggs may be abortive and consumed by other larvae as they grow within the capsule. The young emerge from the capsule as benthic, juvenile snails about 1.3 mm in shell length.

In the study by Sorte and Hofmann (2005), thermotolerance of different Nucella species along the coast was found to be correlated with the latitude range and tidal height each species occupies. N. ostrina, which occurs higher in the intertidal than does N. canaliculata in Oregon and does not extend as far north, had higher heat tolerance than did N. canaliculata. N. emarginata, which extends the farthest south, and N. ostrina, which lives higher in the intertidal, recovered more quickly from thermal exposure than did N. canaliculata and N. lamellosa, which live lower in the intertidal, and N. lima, which has a more northern range. These differences in heat tolerance may be related to HSP70 molecular chaperones.

The famous purple dye from the city of Tyre, that colored royal Roman robes, was made from a relative of Nucella. The snails were ground up in a stone mortar; different combinations made different shades of purple. The dye should be fixed with lemon juice as a mordant. The American species produce a much less brilliant purple than do the Mediterranean species.

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Source: Invertebrates of the Salish Sea

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Like all members of family Nucellidae, this species has a strong shell with a well-developed spire (not more than 7 whorls), a short siphonal notch or canal but no anal notch. The shell is not highly polished. The animal has a horny operculum. Nucella canaliculata has no frilly lamellae. The shell sculpture consists of many well-defined spiral ridges of approximately equal size. The whorls are set off from one another by a deep groove. Small individuals such as this one may be orange; older individuals are often yellowish brown or light gray. The aperture may be bright yellow. Length to 4 cm.
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Source: Invertebrates of the Salish Sea

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Distribution

Geographical Range: Aleutian Islands to Cayucos, San Luis Obispo County, CA; uncommon north of Puget Sound or south of San Francisco Bay.

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Source: Invertebrates of the Salish Sea

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Physical Description

Type Information

Holotype for Thais canaliculata compressa Dall, 1915
Catalog Number: USNM 60102
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Preparation: Dry
Collector(s): Stearns
Locality: Monterey, California, United States, North Pacific Ocean
  • Holotype: Proc. U.S. Natl. Mus. 49(2124): 569, pl. 74, fig. 2.
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Source: National Museum of Natural History Collections

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Look Alikes

How to Distinguish from Similar Species: Nucella ostrina has a thick shell and spiral ridges of 2 different sizes. Nucella lamellosa has only a few large spiral ridges on each whorl and may also have longitudinal ribs or frilly lamellae. Acanthina spirata has a large tooth on the outer lip of the aperture.
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Source: Invertebrates of the Salish Sea

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Ecology

Habitat

Depth range based on 24 specimens in 1 taxon.
Water temperature and chemistry ranges based on 21 samples.

Environmental ranges
  Depth range (m): -0.5 - 37
  Temperature range (°C): 9.215 - 10.345
  Nitrate (umol/L): 5.774 - 7.608
  Salinity (PPS): 31.235 - 32.111
  Oxygen (ml/l): 6.535 - 6.794
  Phosphate (umol/l): 0.883 - 1.021
  Silicate (umol/l): 12.975 - 20.289

Graphical representation

Depth range (m): -0.5 - 37

Temperature range (°C): 9.215 - 10.345

Nitrate (umol/L): 5.774 - 7.608

Salinity (PPS): 31.235 - 32.111

Oxygen (ml/l): 6.535 - 6.794

Phosphate (umol/l): 0.883 - 1.021

Silicate (umol/l): 12.975 - 20.289
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth Range: Middle intertidal.

Habitat: Rocky intertidal, often in or near mussel beds. On protected or exposed coasts. May be very abundant at some exposed sites on the Olympic Peninsula

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Source: Invertebrates of the Salish Sea

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Molecular Biology and Genetics

Molecular Biology

Barcode data: Nucella canaliculata

The following is a representative barcode sequence, the centroid of all available sequences for this species.


There are 35 barcode sequences available from BOLD and GenBank.  Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.  See the BOLD taxonomy browser for more complete information about this specimen and other sequences.

ANA------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------TTATTTTGATTTTTGGAACATCCTGAGGTTTATATTTTAATTCTTCCGGGTTTTGGAATAATTTCTCATATTGTGAGTCATTATTCAGCTAAAAAA---GAAACATTCGGAACTTTAGGTATAATCTATGCAATATTAGCTATTGGAGTTTTAGGCTTTATTGTCTGAGCTCATCATATATTTACAGTCGGTATGGATGTAGATACTCGAGCCTATTTTACAGCTGCTACAATAATTATTGCCGTACCTACAGGAATTAAAGTATTTAGATGATTA---GCTACAATTCATGGTGCT---AAAATTAAATATGAGACACCTATACTATGAGCGCTTGGGTTTATTTTTTTATTCACAGTAGGTGGTTTAACAGGAATTGTGTTATCTAATTCTTCTTTAGATATCATAATACATGATACTTATTATGTAGTTGCTCATTTTCATTATGTC---CTGTCAATAGGGGCAGTTTTTGCATTATTTGGAGCTTTTAACTATTGGTTCCCTCTTTTAAGTGGTGTTTCTCTTCATAGTCGTTGAACTAAAGCTCATTTTTATATTATGTTTATTGGAGTTAATGTTACATTTTTTCCTCAG
-- end --

Download FASTA File
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Source: Barcode of Life Data Systems (BOLD)

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Statistics of barcoding coverage: Nucella canaliculata

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 3
Specimens with Barcodes: 9
Species With Barcodes: 1
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Source: Barcode of Life Data Systems (BOLD)

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Wikipedia

Nucella canaliculata

Nucella canaliculata, common name : the Channelled Dog Winkle, is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.[1]

Contents

Description

The shell size varies between 25 mm and 53 mm

Distribution

This species is distributed in the Pacific Ocean from the Aleutians to California

Apertural view of Nucella caniculata

References

  1. ^ a b Nucella canaliculata (Duclos, 1832).  Retrieved through: World Register of Marine Species on 24 April 2010.
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