Fissurellidae Fleming 1822
Creators: name: Gofas, Serge
name: Luque, Ángel A.
name: Oliver, Joan Daniel
name: Templado, José
name: Serrano, Alberto
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Lepetellida
Fissurellidae

description: Key to species of Fissurellidae found in the GB (see also Bogi & Giusti 1994 for differentiating Emarginula spp.)
1. Anterior part of the aperture with a deep slit reaching the edge ....................................................... 2
– Anterior part of the aperture entire, shell with a slit or a hole not reaching the edge ....................... 4
2. Shell height> half length, commarginal sculpture of tightly packed, vermiculate cordlets .............. ................................................................................ Emarginula christiaensi Piani, 1985 (Fig. 4I–J)
– Shell height ≤ half length, commarginal cords elevated and narrower than intervals ...................... 3
3. Apex definitely overhanging the posterior edge of the shell .............................................................. .......................................................................... Emarginula tuberculosa Libassi, 1859 (Fig. 4F–H)
– Apex not overhanging the posterior edge of the shell ........................................................................ ......................................................................... Emarginula multistriata Jeffreys, 1882 (Fig. 4D–E)
4. Shell with a hole situated at the apex or close to it ........................................................................... 5
– Shell with a slit situated between the apex and the anterior edge .................................................. 10
5. Apex retaining coiled part with larval shell, and the hole immediately anterior to it ...................... 6
– Apex without coiled part, with the hole situated on it ...................................................................... 7
6. Shell height> shell length, shell surface smooth ............................................................................... ............................................... Profundisepta alicei (Dautzenberg & H. Fischer, 1897) (Fig. 6C–D)
– Shell height ≤ shell length, radial sculpture of granulose riblets ........................................................ ....................................................................... Profundisepta profundi (Jeffreys, 1877) (Fig. 6E–G)
7. Shell usually large, with a sculpture of radial and commarginal riblets ............................................. ..................................................................... Diodora tenuiclathrata (Seguenza, 1863) (Fig. 4A–C)
– Shell always smaller than 10 mm with a sculpture of minute granules ............................................ 8
8. Granules arranged along radial lines ................ Fissurisepta granulosa Jeffreys, 1883 (Fig. 6A–B)
– Granules arranged quincuncially ...................................................................................................... 9
9. Shell height nearly twice shell length ................. Cornisepta rostrata (Seguenza, 1863) (Fig. 6H–J)
– Shell height about the same as shell length ........................................................................................ ........................................ Cornisepta microphyma (Dautzenberg & H. Fischer, 1896) (Fig. 6K–M)
10. Shell sculpture formed by definite radial ribs intersecting commarginal cordlets ............................. ............................................................. Puncturella asturiana (P. Fischer, 1882) [not found on GB]
– Shell sculpture formed by radial rows of granules, aligned to form ribs ........................................11
11. Apex strongly curved, overhanging posterior edge ............................................................................ ...................................................................... Puncturella granulata (Seguenza, 1863) (Fig. 4K–L)
– Apex weakly curved, not overhanging posterior edge ....................................................................... .................................................................................... Puncturella agger Watson, 1883 (Fig. 5A–N)
description: Published as part of Gofas, Serge, Luque, Ángel A., Oliver, Joan Daniel, Templado, José & Serrano, Alberto, 2021, The Mollusca of Galicia Bank (NE Atlantic Ocean), pp. 1-114 in European Journal of Taxonomy 785 (1) on pages 29-30, DOI: 10.5852/ejt.2021.785.1605, http://zenodo.org/record/5798418