2 
PROCEEDINGS OF THE NATIONAL MUSEUM. 
VOL. 63, 
Page 19. Chlamys fucicolus, strike out reference to the Sulphur voyage and 
insert “Arnold, Tert, Pectens, Calif., p. 131, pi. 46, fig. 8, 1906.” 
Page 23. It now appears that Musculus was used by Martyn binomially in its 
ancient significance for Mytilus eleven years before Bolten, so we 
happily can return to the familiar generic name Modiolaria for the 
species of this group. 
Page 24. Crenella decussata, add “ also Atlantic.” 
Page 25. Cyatliodonta pedroana, read “ Dali, 1915.” 
Page 30. Astarte glohosa, read Reeve “ voi. 2.” 
Page 35. Lucinoma “ densilineata,^’ read “ densilirata.” 
Page 41. Pachydesma stultorum, add “ Halfmoon Bay, Weymouth.” 
Amiantis callosa, add “ Santa Monica, Weymouth.” 
Page 42. Saxidomus nuttalUi, add “ Humboldt Bay, Weymouth.*' 
Chione fluctifraga and succincta, add “ Mugu Bay, White.” 
Page 49. Donax gouldii, add “ San Luis Obispo, Weymouth.” 
Donax calif ornica, add “ Mugu Bay, White.” 
Page 50. Sanguinolaria, add “Mugu Bay, White.” 
Page 52. Hemdmactra falcata, add “ Newport, Calif.” 
Page 54. Cyrtodaria kurriana, read “ 1861.” 
Page 55. Add ''Rocellaria sp, San Diego, Calif., Orcutt.” 
Page 56. Under Xylophaga add “ Xylopliaga calif ornica Bartsch, 1921 ; Proc. 
Biol. Soc. Washington, vol. 34, p. 32, off Point Pinos, Cal., in 78 to 
108 fathoms. Also: Xylophaga washingtonia Bartsch, 1921, same 
reference, Departure Bay, B. C., to coast of Washington. Also : 
under Teredo, ^'Teredo heachi Bartsch, 1921, Proc. Biol. Soc. Wash., 
vol. 34, p. 29 ; Bull. U. S. Nat. Mus. 122, p. 18, pi. 20, fig. 1, pi. 32, 
fig. 4, 1922, San Francisco Bay.” Add Teredo (Lyrodus) townsendi 
Bartsch, Bull. U. S. Nat. Mus. 122, p. 26, pi. 22, fig. 2; pi. 33, fig. 
2, 1922, Southern San Francisco Bay. Also: to Teredo (Teredops) 
diegensis add “ Bull. U. S. Nat. Mus. 122, p. 29, pi. 22, fig. 3 ; pi. 34, 
fig. 3, 1922.” The true Teredo navalis of Europe is not a resident 
of the Pacific Ocean. 
Page 59. Read Cymbuliidae. 
Page 60. Rictaxis punctocoelata, add “ Departure Bay, B. C.” 
Page 61. Aeteocina eulcitella, add “ San Diego, Strong.” 
Acteocina infrequens, fossil at Santa Monica, living Cape San Lucas 
to Panama. 
Page 62. Above “ Genus Diaphana ” insert “ Family Diaphanidae.” 
Page 66. Liriola thersites, second line, read *‘Ann. Mag.” 
Page 71. Antiplanes rotula, add “ smithi Arnold, not Forbes.” 
Page 76. Lora woodiana, for “ strait ” read “ sea.” 
Page 86. For “ Merovia ” read “ Gypraeolina Cerulli-Irelli, 1911.” 
Page 90. Beringius kennicottii, for “ Dali, 1907,” read “ Dali, 1871.” 
Page 96. Latisipho nalli, read “ Latisipho halli.” 
Page 103. Under Columbella, insert “ Columbella fuscata Sowerby, 1832, Proc. 
Zool. Soc., p. 117 ; Thes. Conch., Columbella, p. 114, pi. 36, figs. 21, 
25, 1847. La Jolla, Calif. (Orcutt) to Ecuador.” 
Page 111. Under Thais insert “ Thais biserialis Blainville, 1832 ; Nouv. Ann. 
du Mus. de Paris, p. 50, pi. 11, fig. 11, La Jolla (Orcutt) to Peru.” 
NepUinea tenuisculpta, add “ Bull. Am. Pal. VIII, No. 36, p. 5, pi. 
1, fig. 6-9, 1921.” 
Page 113. Pseudomurex costata read “ p. 231.” 
Page 114. Opalia evicta, vol. 44, read “ vol. 64.” 
