70 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 23 



[non] Pecten rubidiis Hinds, 1845, p. 61, pi. 17, fig. 5. [See Chlamys 

 rubida (Hinds), this paper.] 



Ostrea Demissa Solander, 1797, p. 52. Newfoundland. [Museum 

 Calonnianum rejected by Internat. Comm. Zool. Nomen., Opinion 

 51, 1912.] 



Chlamys Cinnabarina Born. Roding, 1798, p. 161. 



Chlatnys Islandica Miiller. Roding, 1798, p. 161. 



Pecten Pealeii Conrad, 1831, p. 12, pi. 2, fig. 2. "At the mouth of a 

 river on the coast of Maine." 



Pecten icelandicus Chemnitz. Sowerby, 1842, p. 75, pi. 17, figs. 159- 

 161. "Northern Ocean." 



Pecten Fabricii Ph. [Philippi], 1844, p. 101, pi. 1, fig. 5. "Patria: 

 Groenlandia." [In index: "Halte ich jetzt fiir einen jungen P. 

 islandicus." (I now consider it a young P. islandicus.) ] 



Argus islandicus Miiller. Gray, 1851, p. 132. [Argus proposed as a 

 genus by Poli, 1791 (intro. to vol. 1), p. 32. Invalid; preoccupied 

 once in Gastropoda and twice in Lepidoptera ; also proposed for, 

 and based on characters of, animal only.] 



Pecten islandicus Mi^iller. Kiister, 1859, p. 59, pi. 16, figs. 1, 2. Green- 

 land, Iceland, Norway and North America. 



Pecten islandicus Chemnitz. Kiister, 1859, p. 105, pi. 30, figs. 1-6. Fig. 

 1 : "Island." ; figs. 2-6: "Neufoundland." 



Chlamys Islandica var. insculpta Verrill, 1897, p. 73, pi. 16, figs. 4, 5, 

 5a. ". . . on our northern coasts." 



Chlamys costellata Verrill, 1897, p. 75. Off Newfoundland, in 67-72 

 fathoms.— Verrill & Bush, 1898, p. 835, pi. 86, fig. 6.— Dall, 

 1898, p. 735. ". . . very young specimen of the present species [P. 

 islandicus Muller]." 



Pecten (Chlamys) islandicus Muller. Dall, 1898, p. 735. "Pleistocene 

 of New England and New Brunswick and northward on the 

 bowlder clays, also on the North Pacific coasts in deposits of the 

 same age; living from the Arctic waters southward to Chesapeake 

 Bay." — Arnold, 1906, p. 113, pi. 45, figs. 1, la. Living: North 

 Atlantic; Bering Sea. Pleistocene: Dall's records. Pliocene (actual- 

 ly Pleistocene), Deadman Island, San Pedro, California. — Dall, 

 1921, p. 19. "Arctic Ocean to Kamchatka and Puget Sound. Also 

 Atlantic." 



Chlamys islandica Muller; var. Fabricii Philippi. Dautzenberg & 

 Fischer, 1912, p. 323. 



