COMPLETE GRAU : PECTINIDAE OF THE EASTERN PACIFIC 101 



[non] Pecten ventricosus, Sby., -|- tumidus, Sby. Gould in Carpenter, 



1864, p. 592. [Carpenter commented, "Dead valves, of the form 



aequisulcatus. San Diego."; aequisulcatus a. nomen nudum.] 

 [non] Pecten ventricosus, Sby., -(- tumidus, Sby. Cooper in Carpenter, 



1864, p. 599. [Carpenter commented, " = ? var. aequisulcatus, 



Cpr." ; aequisulcatus a nomen nudum.] 

 Pecten aequisulcatus, ? n.s. Carpenter, 1864, p. 645. [First validation 



of name.] "Santa Barbara (Jewett) ; Sta. Barbara and San Diego 



(Cooper)." 

 Pecten (var.) aequisulcatus Carpenter, 1865, p. 179, Santa Barbara. 

 Pecten (var.) aequisulcatus Carpenter, 1865, p. 179. Santa Barbara. 



West coast of Central America, particularly northward from 



Panama. 

 Pecten (Pecten) compactus Dall, 1898, p. 707, pi. 34, fig. 5. Pleistocene 



(not Pliocene, as regarded by Dall) of Ventura County, California. 

 Pecten (Plagioctenium) subventricosus Dall, 1898, p. 707, pi. 29, fig. 



8. Pleistocene (not Pliocene, as regarded by Dall) of Ventura 



County, California. 

 Pecten (ventricosus var. ?j aequisulcatus Cpr. Dall, 1898, p. 711. 



Pleistocene of San Pedro, San Diego and Lower California. "Liv- 

 ing from Santa Barbara southward." 

 Pecten (Plagioctenium) newsomi Arnold, 1903, p. 113, pi. 11, figs. 1, 



la. 

 Pecten (Plagioctenium) circularis var. aequisulcatus Carpenter. Arnold, 



1906, p. 132, pi. 50, figs. 1, la, lb; also text figs. 1, p. 45 and 



2, p. 46. "Santa Barbara to Pacific side of Lower California." 



Pleistocene: Ventura, San Pedro and San Diego, California; 



Lower California. 

 [non] ?Pecten (Aequipecten) aequisulcatus Carpenter. Dautzenberg & 



Bavay, 1912, p. 19. Banda (Moluccas) ; Saleh Bay (Soembawa, 



or Sumbawa, Island, Indonesia) ; "reported with some doubt." 



[non C. circularis aequisulcata (Carpenter) ; sp. ?] 

 Pecten (Chlamys) circularis aequisulcatus Carpenter. Dall, 1921, p. 19. 



Santa Barbara, California, to Cape San Lucas, Lower California. 



[Under "Section" Plagioctenium.] — Oldroyd, 1924a, p. 58, pi. 42, 



figs. 1, 2. [Under "Section" Plagiotenium (sic).] 

 Pecten (Chlamys) circularis aequisulcatus Carpenter. Waterfall, 1929, 



table facing p. 78. 

 Pecten (Aequipecten) gibbus (Linnaeus) variety circularis Sowerby. 



Grant & Gale, 1931 [ex parte], p. 218, pi. 5, figs. 7a-7c. [Pecten 



