Patella caecaO. F. Müller, 1776, p. 237 [Basis of the current name] Type Locality: Denmark/Norway Range: 82°N to 18.64°N; 105°W to 0°W Depth: 4 to 1097 m (live 10 to 540 m) Maximum Reported Size: 18 mm Distribution: Greenland: North Greenland, West Greenland, East Greenland; Canada: Nunavut, Baffin Island, Hudson Bay, Labrador, Quebec, New Brunswick; USA: Maine, Massachusetts; Puerto Rico: Culebra Island; Eastern Atlantic: Iceland References: Thorson (1944) L; Clarke (1954a); Macpherson (1971) lWM; Fretter & Graham (1976) E; Schiötte (1989) N Comments: Circumpolar Arctic. Combining Genera: Acmaea Pilidium Propilidium
Patella candidaCouthouy, 1838, p. 86-87, pl. 3, fig. 17 [Synonym] Type Locality: Off Barnstable, Massachusetts Bay (ex pisces) Range: 44.6°N to 41.8°N; 70.3°W to 66.8°W Depth: 73 m (live 73 m) Maximum Reported Size: 8.8 mm Distribution: Canada: New Brunswick; USA: Massachusetts References: Couthouy (1838) SWM; Stimpson (1851c) DdLlNE; Gould (1870) s; E. A. Smith (1877b) s Combining Genera: Pilidium
Cocculina casanicaDall, 1919b, p. 356 [Synonym] Type Locality: USFC sta. 4245, Kasa-an Bay, Alaska Maximum Reported Size: 5.5 mm References: Dall (1919b) M; Baxter (1987) s Comments: Misspelled as cazanica by Dall (1921).
Patella cereaMöller, 1842a, p. 89 [Synonym] Type Locality: [West] Greenland [Söndre Strömfjord and Skovfjord] Range: 66°N to 61°N; 53°W to 47°W Depth: 36 to 109 m Maximum Reported Size: 15 mm Distribution: Greenland: West Greenland References: Möller (1842a) M; E. A. Smith (1877b) s; Schiötte & Warén (1992) DdNSEWs
Lepeta coeca sic, [Not available] Comments: Error for caeca by Thorson (1944).
Patella caeca var. concentricaMiddendorff, 1847b, p. 319, [Middendorff 1851, pl. 16, figs. 16a-c] [Synonym] Type Locality: Insulae Schantar et sinus Tugur maris Ochotici Maximum Reported Size: 13 mm References: Middendorff (1851) M; Dautzenberg & Fischer (1912) s
Patella caeca var. genuina f. elatiorMiddendorff, 1851, p. 184 [Not available] Type Locality: Not stated Maximum Reported Size: 9 mm References: Middendorff (1851) M; Dautzenberg & Fischer (1912) s Comments: Infrasubspecific.
Patella caeca var. genuinaMiddendorff, 1847b, p. 319 [Synonym] Type Locality: Norwegia, Groenlandia et Massachusett's Distribution: Greenland; USA: Massachusetts References: Dautzenberg & Fischer (1912) s
Patella (Cryptobranchia) caeca f. normalisMiddendorff, 1851, p. 184 [Not available] Type Locality: Not stated Maximum Reported Size: 11 mm References: Middendorff (1851) Comments: Infrasubspecific.
Partial List of References
Couthouy, J. P. 1838. Descriptions of new species of Mollusca and shells, and remarks on several polypi found in Massachusetts Bay Boston Journal of Natural History 2 53-111, pls. 1-3. [Stated date: -- Feb 1838.] Dall, W. H. 1919. Descriptions of new species of Mollusca from the North Pacific Ocean in the collection of the United States National Museum Proceedings of the United States National Museum 56(2295) 293-371. [Stated date: -- --- 1919; true date: 30 Aug 1919.] Middendorff, A. T. von. 1847. Vorläufige Anzeige einiger neuen Arten und Synonymien, nebst einer neuen ausgezeichneten Varietät, aus dem Geschlechte Patella L. Bulletin de la Classe Physico-Mathématique de l'Académie Impériale des Sciences de Saint-Pétersbourg 6 col. 317-320. [Stated date: 08 Nov 1847.] Middendorff, A. T. von. 1851. Mollusken Reise in den Aussersten Norden und Osten Sibiriens 2(1) 163-464, pl. 8-30 [Stated date: 30 Sep 1851.] Müller, O. F. 1776. Zoologiae Danicae Prodromus xxxii + 282 pp. Author: Havniae. [Stated date: 31 Mar 1776.] Möller, H. P. C. 1842. Index molluscorum Groenlandiae Naturhistorisk Tidsskrift 4 76-97.
