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Species · Sponges

Massive horny sponge

Polymastia boletiformis

2,650Records since 2000
MayPeak month
13Counties with records

When it is recorded

Jan84
Feb31
Mar34
Apr219
May406
Jun395
Jul351
Aug386
Sep391
Oct134
Nov119
Dec57

GBIF records by month, 2000–2025 (all years combined).

Where it is recorded

#CountyNationRecordsShare
1Causeway Coast and Glens Northern Ireland21
2Gwynedd Wales19
3Pembrokeshire Wales14
4Argyll and Bute Scotland13
5Highland Scotland9
6Isle of Anglesey Wales9
7Isles of Scilly England4
8Dorset England3
9Torbay England3
10Cornwall England2
11Na h-Eileanan Siar Scotland2
12Devon England1
13Sefton England1
1,380 England382 Scotland451 Wales316 Northern Ireland

Records per county (GADM level 2) and per nation; one record can count towards several areas. 13 counties in all.

About this species

Records since 2000
2,650
Peak month
May
Counties with records
13
Scientific name
Polymastia boletiformis
Group
Sponges
NBN Atlas records since 2000
2,962
Kingdom
Animalia
Phylum
Porifera
Class
Demospongiae
Order
Polymastiida
Family
Polymastiidae
Genus
Polymastia
Name with authority
Polymastia boletiformis (Lamarck, 1815)
Described
1815
Contributing datasets
24

Sources: GBIF occurrence data (CC0 / CC BY), JNCC Taxon Designations (OGL), NBN Atlas (open licences), Wikidata (CC0) · Wikidata Q2611709 · GBIF 2251416