(Forbes M.S. in Thompson, 1840) [details]
Ayres, 1851 [details]
Koren, 1844 [details]
M. Sars, 1861 [details]
(Gunnerus, 1767) [details]
Hermaphrodite, possibly self-fertilising, viviparous. May-September? [details]
Yolky eggs. Spring [details]
Ophiopluteus larva. Autumn. [details]
Ophiopluteus larva. Summer [details]
Large eggs. Summer [details]
Eggs, attached to genital pinnules, hatch to barrel-shaped ciliated larva; settlement stage is pentacrinoid. All ... [details]
Eggs, shed freely, larvae and pentacrinoid as in A. bifida. [details]
Planktonic bipinnaria and brachilaria larva. Summer [details]
Protandrous hermaphrodite; eggs are laid in creviices, but are not brooded. Summer [details]
Simultaneous hermaphrodite. Eggs are laid in masses and are brooded for three weeks under the humped body. May-June. [details]
Large eggs, probably direct development [details]
Bipinnaria larva. Summer. [details]
Echinopluteus larva [details]
Direct development? Winter [details]
Barrel - shaped, red larvae. Early spring [details]
Large red eggs. Summer [details]
Echinopluteus larva. Summer [details]
Mature early summer [details]
Echinopluteus larva. Summer - autumn [details]
Echinopluteus larva. Early sumer [details]
Large eggs; probably direct development [details]
Eggs released, larvae not known. Juveniles of the Arctic species G. eucnemis are known to live on, or in, the ... [details]
Lecithotrophic, probaly planktonic larva. Spring [details]
Probably involves planktonic larva [details]
Probably involving planktonic larva [details]
Broods young. Spring [details]
Auricularia larva. Summer [details]
Yolky eggs, probably direct development [details]
Broods young in spring [details]
Doliolatia larva [details]
Doliolaria larva. Spring [details]
Viviparous, can contain several developing young [details]
Bipinnaria larva. Summer [details]
Bipinnaria larva. Winter-spring. [details]
Hermaphrodite. Planktonic brachiloraia larva. Spring - summer [details]
Large eggs, probable direct development [details]
Can reproduce by fission [details]
Doliolaria larva [details]
Ophipluteus larva. Summer [details]
Ophiopluteus larva [details]
Mature in summer [details]
Ophiopluteus larva. Spring - Summer [details]
Ophiopluteus larva. April-May [details]
Probably ophiopluteus larva [details]
Spawns in May [details]
Brachiolaria larva. Spring. [details]
Echinopluteus larva. Spring to autumn [details]
Non-feeding barrel-shaped red larva. February - March [details]
Brood young under membrane [details]
Probably planktonic larva. Summer [details]
Auricularia larva [details]
Echinopluteus larva. January to May [details]
Echinopluteus larva. February to May [details]
Large eggs; non-pelagic development [details]
Intertidal to more than 200 m depth. Common along algae in tidepools and damp places , and under stones in gravel, ... [details]
From the intertidal to about 40 m depth, deeply buried in sand or muddy sand, with some of the arm tips reaching ... [details]
In depths of 50 to more than 200 m, burrowing in sand or muddy sand, all round the British Isles, but rare in the ... [details]
From 5 to more than 200 m depth, in muddy sand or mud, all round the British Isles, except, possibly, the southeast [details]
At about 10 to 20 m depth, in sand, Galway Bay (Ireland) and Plymouth (southwest England); probably overlooked elsewhere [details]
In depths of 10 to 500 m, on gravel, sand, mud and ocassionally rock; English Channel, Irish Sea, rare off western ... [details]
SW Iceland to the Faroe Islands and Scandinavia (Trondhjemsfjord S along the Norwegian and W Swedish coasts to ... [details]
Low intertidal to about 30 m depth,under stones and in crevices; in the Channel Islands and along the western ... [details]
Lower shore to more than 200 m depth, on rock gravel and sand; very common all round the British Isles [details]
From the lower shore to about 125 m depth, on rocky shores, under overhangs, under stones and in rock pools, ... [details]
Occurs in large, deep, high-level rock pools on fairly exposed shores; less common in lower pools and sublittoral. ... [details]
In more than 100 m depth, clinging to sea pens and gorgonians towards the edge of the continental shelf and in some ... [details]
Sublittoral to more than 200 m depth; lives buried in sand or muddy sand, all around the British Isles except for ... [details]
In depths of more than 130 m, on gravel, stones and coral, to the north and west ofo the British Isles [details]
From low intertidal to more than 200 m depth, mainly on coarse sand and gravel, all round the British Isles [details]
From low intertidal to more than 200 m depth, among rocks, stones and seaweed; northern Scotland, Orkeny, Shetland and ... [details]
Not known at the present from the British Isles but may be expected to arrive in southern England and Ireland. ... [details]
Lower shore and subtidal to 200 m depth, burrowing in sand or muddy sand, all round the British Isles. Apparently ... [details]
From low on shore to 150 m depth, burrowing in coarse sand or fine shell gravel, around western coasts from the ... [details]
Sublittoral to more than 200 m depth, in coarse sand and fine gravel, common all around British Isles [details]
Deeper than 200 m, on stones and gravel. Vars flemingii and norvegicus occur in the western Channel, off western ... [details]
A deep water species, found occasionally between 100 and 200 m near the edge of the continental shelf to the west ... [details]
From low intertidal, but mainly in the sublittoral zone, down to 40 m depth, occasionally deeper, on rocks, stones ... [details]
At the edge of the continental shelf in depths of 130 m to 200 m, to the west of Ireland and around Shetland [details]
Not recorded from British waters, but likely to occur in the North Sea, Shetland and Orkney. Sublittoral to 100 m depth. [details]
In depths of more than 150 m, on rough ground where currents are strong, off northern Scotland, the Orkneys and ... [details]
Juveniles are known to live on, or in, the polyps of alcyonarians (Patent, 1970) [details]
The commonest species of Henricia around the British Isles, occuring from low intertidal to at least 50 m depth, on ... [details]
In depths of 20 to more than 200 m, northern North Sea and possibly Shetland [details]
In depths of more than 100 m in the northern North Sea and near Shetland, possibly extending as far south as Biscay. [details]
From low intertidal to 50 m depth, typical of the algal zone. British distribution not completely known, but it ... [details]