A monograph of the British marine annelids

M'Intosh, William Carmichael; Ford, George H.; McIntosh, Roberta; Walker, Ada H.

doi:10.5962/bhl.title.54725

Cited by 109 publications

(78 citation statements)

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“…McIntosh (20) records it as partial to shell debris, gravel, and similar regions, while Pruvot (29) finds it on the coast of Brittany in the littoral zone. In the middle (Himanthalia) region of this zone it occurs among seaweed on a sandy bottom, and lower down it lives on a coarse sand, passing to fine sand at greater depths.…”

Section: Genussthenelaismentioning

confidence: 99%

“…As regards the Channel this species has only been taken on the oyster ground off St. Peter Port, Guernsey, along with Hermione (McIntosh,20). It appears to be a northern species, and is found at considerable depths, chiefly on muddy sand.…”

Section: Genussthenelaismentioning

confidence: 99%

“…from the sand and gravel of the Eddys~one Grounds. (20) records it from the tube of a Eunice, and free on muddy sand; while Pruvot (29) gives its habitat as the Fucus zone down to the base of the rocks covered with Laminaria, and with a somewhat variable bottom. This species is not admitted by McIntosh in his" Monograph of the British Annelids," nor is it included amongst the synonyms.…”

Section: * Ev Arne Impar Johnstonmentioning

confidence: 99%

“…McIntosh (20) states that it occurs under stones between tidemarks, in 'the crevices of tangle roots, and in the cavities of shells, both univalve and bivalve. This accords completely with my own experience in this neighbourhood, throughout which it appears to be pretty generally distributed.…”

Section: * Ev Arne Impar Johnstonmentioning

confidence: 99%

“…McIntosh (20) gives the habitat of this species as the tubes of Polymnia (Tm'ebella) nebulosa, between tidell)arks, Herm, and between the chinks of rocks (gneiss), in muddy sand in the burrows of Lysidice. Other authors confirm the residence of this species more or less closely with Polymnia nebulosa,while de St.-Joseph (31) states that it is found on the shore under stones, where it constructs a tfllbe of sand and bits of shell.…”

Section: Concarneaumentioning

confidence: 99%

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The Amphinomidæ, Aphroditidæ, Polynoidæ, and Sigalionidæ of Plymouth and the English Channel

Hodgson¹

1900

J. Mar. Biol. Ass.

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Section: Genussthenelaismentioning

confidence: 99%

Section: Genussthenelaismentioning

confidence: 99%

Section: * Ev Arne Impar Johnstonmentioning

confidence: 99%

Section: * Ev Arne Impar Johnstonmentioning

confidence: 99%

Section: Concarneaumentioning

confidence: 99%

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The Amphinomidæ, Aphroditidæ, Polynoidæ, and Sigalionidæ of Plymouth and the English Channel

Hodgson¹

1900

J. Mar. Biol. Ass.

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Advances in assessing Sabellaria spinulosa reefs for ongoing monitoring

Jenkins

Eggleton

Barry

et al. 2018

Ecology and Evolution

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Standardized and repeatable data acquisition and analyses are required to enable the mapping and condition monitoring of reefs within Marine Protected Areas (MPAs). Changes in habitat condition must be reliably identified and reported to best support evidence‐based management. Biogenic reefs in temperate waters, that is, hard matter created by living organisms and raised above the seabed, provide food and shelter for many plant and animal species. This article explores the feasibility of habitat mapping, using remote sensing datasets, as well as metrics for repeatable and suitable assessment of areas of Sabellaria spinulosa for their status as biogenic reef. Data were gathered within the North Norfolk Sandbanks and Saturn Reef candidate Special Area of Conservation/Site of Community Importance in the southern North Sea. Six study areas were identified as potential locations of biogenic reef using previously acquired data, and these were targeted for further investigation using a combination of high resolution multibeam echosounder and sidescan sonar. Where potential S. spinulosa was identified from the acoustic data, a drop‐down camera system was employed for visual verification. Areas of known and potential S. spinulosa reef were mapped successfully at two of the six study areas, although future approaches should take careful consideration of the seabed morphology and predominant habitat backdrop to successfully interpret such data. Camera tows from S. spinulosa reef areas were broken up into 5‐s segments, with each segment scored for (a) average tube elevation; (b) average percentage cover; and (c) for the presence or absence of S. spinulosa. These metrics were utilized to create summary statistics, including a value of patchiness derived from presence/absence data, that is recommended for application as part of future monitoring programs. The application of this methodology could benefit wider assessments of similar threated or declining habitats such as intertidal Mytilus edulis beds on mixed and sandy sediments, Maerl beds, Modioulus modiolus beds, Ostrea edulis beds, and Zostera beds where patchiness may also be considered of environmental importance.

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Microscopic anatomy of the integument in the ribbon worm Micrura bella (Stimpson, 1857) (Pilidiophora, Nemertea)

Pereverzeva

Chеrnyshev

Magarlamov

2022

Journal of Morphology

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The integument of ribbon worms in the order Heteronemertea is distinct from the integuments in the other taxa of nemerteans due to the presence of a special subepidermal glandular layer, the cutis. Among heteronemerteans, the ultrastructure of the cutis has been studied only in the Lineus ruber species complex. In the current study, ultrastructural (transmission electron microscopy) and histochemical studies of the epidermis and the cutis of Micrura bella from the basal Lineage A of the family Lineidae were performed. The epidermis consisted of ciliated and serous gland cells and is separated from the cutis by a layer of the subepidermal extracellular matrix; the basal lamina was not detected. The cutis comprised musculature, two types of mucous and four types of granular gland cells, and pigment cells with four types of granules. In the cutis of juvenile worms, type II granular gland cells and type II mucous cells were not observed. The integument of the caudal cirrus consisted of ciliated and serous gland cells and two intraepidermal lateral nerve cords; the cutis was absent. The compositions of the integument glands of M. bella and the L. ruber species complex are similar, except for the presence of type IV granular gland cells with narrow rod‐shaped and lamellated granules exhibiting an alternating dark and light transverse layers and type II mucous cells found only in M. bella.

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A monograph of the British marine annelids

Cited by 109 publications

References 0 publications

The Amphinomidæ, Aphroditidæ, Polynoidæ, and Sigalionidæ of Plymouth and the English Channel

The Amphinomidæ, Aphroditidæ, Polynoidæ, and Sigalionidæ of Plymouth and the English Channel

Advances in assessing Sabellaria spinulosa reefs for ongoing monitoring

Microscopic anatomy of the integument in the ribbon worm Micrura bella (Stimpson, 1857) (Pilidiophora, Nemertea)

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