Subgenus (Fissurella) J. G. Bruguiere, 1789
(5-4-1-2-1-1-4-9-5-0-0-0-0)

alba P. P. Carpenter, 1857, not R. A. Philippi, 1845
(5-4-1-2-1-1-4-9-5-1-0-0-0)
[=Fissurella (Cremides) gemmata K. T. Menke, 1847]
Ref. Keen, 1971 p 319

angusta (J. F. Gmelin, 1791)
(5-4-1-2-1-1-4-9-5-2-0-0-0)
Narrow Keyhole Limpet, Narrow-end Keyhole Limpet
Ref. Abbott & Dance, 1982 p 27 c
Amer. Fish. Soc., 1988 p 53
Kaicher, 1988 #5379 bw

antillarum A. Orbigny, 1842
(5-4-1-2-1-1-4-9-5-3-0-0-0)
[=Fissurella (Cremides) barbadensis (J. F. Gmelin, 1791)]
Ref. Abbott, 1974 p 27

aspera G. B. Sowerby, 1835, not J. Rathke, 1833
(5-4-1-2-1-1-4-9-5-4-0-0-0)
[=Diodora (Diodora) fontainiana (A. Orbigny, 1841)]
Ref. Keen, 1971 p 315

balanoides L. A. Reeve, 1850
(5-4-1-2-1-1-4-9-5-5-0-0-0)
[=Fissurella (Fissurella) nimbosa (C. v. Linne, 1758)]
Ref. Abbott, 1974 p 27

bermudensis H. A. Pilsbry, 1890
(5-4-1-2-1-1-4-9-5-6-0-0-0)
[=Fissurella (Cremides) barbadensis (J. F. Gmelin, 1791)]
Ref. Abbott, 1974 p 27

catillus L. A. Reeve
(5-4-1-2-1-1-4-9-5-7-0-0-0)
Ref. Kaicher, 1988 #5417 bw

chilensis G. B. Sowerby
(5-4-1-2-1-1-4-9-5-8-0-0-0)
[=Fissurella (Fissurella) costata R. P. Lesson, 1830]
Ref. Abbott & Dance, 1982 p 28

chlorotrema K. T. Menke, 1847
(5-4-1-2-1-1-4-9-5-9-0-0-0)
[=Fissurella (Cremides) microtrema G. B. Sowerby, 1835]
Ref. Keen, 1971 p 319

clupeiformis G. B. Sowerby
(5-4-1-2-1-1-4-9-5-10-0-0-0)
[=Fissurella (Fissurella) crassa J. B. P. A. de Lamarck, 1822]
Ref. Abbott & Dance, 1982 p 28

costata R. P. Lesson, 1830
(5-4-1-2-1-1-4-9-5-11-0-0-0)
Costate Keyhole Limpet
Syn. Fissurella (Fissurella) chilensis G. B. Sowerby;
Fissurella (Fissurella) rudis G. P. Deshayes
Ref. Abbott & Dance, 1982 p 28 c

crassa J. B. P. A. de Lamarck, 1822
(5-4-1-2-1-1-4-9-5-12-0-0-0)
Thick Keyhole Limpet
Syn. Fissurella (Fissurella) clupeiformis G. B. Sowerby
Ref. Abbott & Dance, 1982 p 28 c

darwini L. A. Reeve, 1845
(5-4-1-2-1-1-4-9-5-13-0-0-0)
[=Fissurella (Fissurella) picta (J. F. Gmelin, 1791)
Ref. Abbott & Dance, 1982 p 28

digitale (L. A. Reeve)
(5-4-1-2-1-1-4-9-5-14-0-0-0)
Ref. Kaicher, 1988 #5430 bw

edititia L. A. Reeve, 1849
(5-4-1-2-1-1-4-9-5-15-0-0-0)
[=Fissurella (Cremides) barbadensis (J. F. Gmelin, 1791)]
Ref. Abbott, 1974 p 27

fascicularis J. B. P. A. de Lamarck, 1822
(5-4-1-2-1-1-4-9-5-16-0-0-0)
Wobbly Keyhole Limpet
Ref. Abbott & Dance, 1982 p 27 c
Kaicher, 1988 #5366 bw

gemmulata L. A. Reeve
(5-4-1-2-1-1-4-9-5-17-0-0-0)
Ref. Kaicher, 1988 #5369 bw

glaucopsis L. A. Reeve
(5-4-1-2-1-1-4-9-5-18-0-0-0)
Ref. Kaicher, 1988 #5372 bw

grandis G. B. Sowerby
(5-4-1-2-1-1-4-9-5-19-0-0-0)
[=Fissurella (Fissurella) nigra R. P. Lesson, 1830]
Ref. Abbott & Dance, 1982 p 28

humilis K. T. Menke, 1847
(5-4-1-2-1-1-4-9-5-20-0-0-0)
[=Fissurella (Cremides) microtrema G. B. Sowerby, 1835]
Ref. Keen, 1971 p 319

humphreysi L. A. Reeve
(5-4-1-2-1-1-4-9-5-21-0-0-0)
Ref. Kaicher, 1988 #5389 bw

intensa H. A. Pilsbry, 1890
(5-4-1-2-1-1-4-9-5-22-0-0-0)
[=Fissurella (Cremides) barbadensis (J. F. Gmelin, 1791)]
Ref. Abbott, 1974 p 27

latemarginata G. B. Sowerby
(5-4-1-2-1-1-4-9-5-23-0-0-0)
[=Fissurella (Fissurella) nigra R. P. Lesson, 1830]
Ref. Abbott & Dance, 1982 p 28

limbata G. B. Sowerby
(5-4-1-2-1-1-4-9-5-24-0-0-0)
Ref. Kaicher, 1988 #5402 bw

maxima G. B. Sowerby, 1835
(5-4-1-2-1-1-4-9-5-25-0-0-0)
Grand Keyhole Limpet
Ref. Abbott & Dance, 1982 p 28 c

morrisoni J. H. McLean
(5-4-1-2-1-1-4-9-5-26-0-0-0)
Ref. Kaicher, 1988 #5421 bw

mutabilis G. B. Sowerby
(5-4-1-2-1-1-4-9-5-27-0-0-0)
Ref. Kaicher, 1988 #5425 bw

natalensis C. F. F. Krauss, 1848
(5-4-1-2-1-1-4-9-5-28-0-0-0)
Natal Keyhole Limpet
Ref. Abbott & Dance, 1982 p 28 c
Kaicher, 1988 #5444 bw

nigra R. P. Lesson, 1830
(5-4-1-2-1-1-4-9-5-29-0-0-0)
Black Keyhole Limpet
Ref. Kaicher, 1988 #5386 bw
Syn. Fissurella (Fissurella) grandis G. B. Sowerby;
Fissurella (Fissurella) latemarginata G. B. Sowerby
Ref. Abbott & Dance, 1982 p 28 c

nigropunctata G. B. Sowerby, 1835
(5-4-1-2-1-1-4-9-5-30-0-0-0)
[=Fissurella (Cremides) virescens G. B. Sowerby, 1835]
Ref. Keen, 1971 p 321

nimbosa (C. v. Linne, 1758) [T]
(5-4-1-2-1-1-4-9-5-31-0-0-0)
Rayed Keyhole Limpet
Ref. Abbott & Dance, 1982 p 27 c
Syn. Fissurella (Fissurella) balanoides L. A. Reeve, 1850
Ref. Abbott, 1974 p 27 bw

nubecula (C. v. Linne, 1758)
(5-4-1-2-1-1-4-9-5-32-0-0-0)
Cloudy Keyhole Limpet Ref. Abbott & Dance, 1982 p 28 c

oriens G. B. Sowerby, 1835
(5-4-1-2-1-1-4-9-5-33-0-0-0)
Rising Sun Keyhole Limpet
Ref. Abbott & Dance, 1982 p 28 c
Kaicher, 1988 #5445 bw

ostrina L. A. Reeve, 1850
(5-4-1-2-1-1-4-9-5-35-0-0-0)
[=Fissurella (Cremides) asperella G. B. Sowerby, 1835]
Ref. Keen, 1971 p 318

peruviana J. B. P. A. de Lamarck, 1822
(5-4-1-2-1-1-4-9-5-36-0-0-0)
Peruvian Keyhole Limpet
Ref. Abbott & Dance, 1982 p 28 c

picta (J. F. Gmelin, 1791)
(5-4-1-2-1-1-4-9-5-37-0-0-0)
Painted Keyhole Limpet
Syn. Fissurella (Fissurella) darwini L. A. Reeve, 1845
Ref. Abbott & Dance, 1982 p 28 c

pluridentata J. Mabille, 1895
(5-4-1-2-1-1-4-9-5-38-0-0-0)
[=Diodora (Diodora) inaequalis (G. B. Sowerby, 1835)]
Ref. Keen, 1971 p 315

porphyrozonias J. F. Gmelin, 1791
(5-4-1-2-1-1-4-9-5-39-0-0-0)
[=Fissurella (Cremides) barbadensis (J. F. Gmelin, 1791)]
Ref. Abbott, 1974 p 27

pulchra G. B. Sowerby
(5-4-1-2-1-1-4-9-5-40-0-0-0)
Ref. Kaicher, 1988 #5451 bw

punctata P. Fischer
(5-4-1-2-1-1-4-9-5-41-0-0-0)
Ref. Kaicher, 1988 #5380 bw

radiosa R. P. Lesson
(5-4-1-2-1-1-4-9-5-42-0-0-0)

radiosa R. P. Lesson
(5-4-1-2-1-1-4-9-5-43-1-0-0)
Ref. Kaicher, 1988 #5371 bw

rudis G. P. Deshayes
(5-4-1-2-1-1-4-9-5-44-0-0-0)
[=Fissurella (Fissurella) costata R. P. Lesson, 1830]
Ref. Abbott & Dance, 1982 p 28

rudis P. F. Roding, 1798
(5-4-1-2-1-1-4-9-5-45-0-0-0)
[=Fissurella (Cremides) nodosa (I. Born, 1778)]
Ref. Abbott & Dance, 1982 p 28

rugosa authors, not G. B. Sowerby, 1835
(5-4-1-2-1-1-4-9-5-46-0-0-0)
[=Fissurella (Cremides) microtrema G. B. Sowerby, 1835]
Ref. Keen, 1971 p 319

tenebrosa G. B. Sowerby, 1863, not T. A. Conrad, 1833
(5-4-1-2-1-1-4-9-5-47-0-0-0)
[=Fissurella (Cremides) gemmata K. T. Menke, 1847]
Ref. Keen, 1971 p 319

verna A. A. Gould
(5-4-1-2-1-1-4-9-5-48-0-0-0)
Ref. Kaicher, 1988 #5422 bw