COMPLETE GRAU : PECTINIDAE OF THE EASTERN PACIFIC 139 



[Synonj'my of preceding four subgenera proposed by von Teppner sug- 

 gested by F. K. North.] 

 Notovola Finlay, 1926, p. 451. Type species: Pecten Novae-Zelandiae 

 Reeve, 1852, sp. 36, pi. 8, fig. 36; type locality: "New Zealand." 



Original diagnosis: Branchiis cirratis pede juxta auriculam; card, 

 fossula ovata, byssum emittens. 



Additional diagnosis: Shell equilateral or nearly so; right valve 

 moderately convex and left flattish or slightly inflated ; auricles rather 

 large and nearly equal, convex on right valve and convex on left ; byssal 

 notch small ; ribs strong, usually rounded but occasionally squarish ; 

 radial ridges or striations often on and/or between ribs, also fine con- 

 centric lamellae, usually more prominent on left valve. 



Remarks: Most contemporary systematists reject Osbeck as the 

 author of Pecten. Winckworth (1934) presented a summation of the 

 matter so thorough and definitive as to deserve quotation in its entirety: 



"Grant and Gale, in a book which contains a great deal of valu- 

 able systematic work, seem to me to be in error when they regard the 

 genus Pecten as established by Osbeck instead of Miiller. Osbeck's 

 account of his eastern travels was originally published in Swedish 

 in 1757, and is too early to be taken into account; this was trans- 

 lated into German in 1765, and an English edition, translated from 

 the German, appeared in 1771. The only reference to Pecten faith- 

 fully survives both translations, as may be seen from the complete 

 quotations here given. 



1757, p. 299. "Med ankartaget solade et hwitt Corall-amne, 



hwarpa en rod Sniicka, Pecten adscensionis, som hade manga 



grenar pa skalet och war fastwaxt." 



1771, p. 100. "With the cable we pulled up a piece of coral, on 



which a red shell (Pecten Adscensionis) was growing, which on 



its valves represented many branches." 



"While it is true that the German edition had been carefully re- 

 vised, this does not give nomenclatorial validity to the original 

 names. Opinion 21 of the International Commission on Zoological 

 Nomenclature refuses nomenclatorial status to Klein's genera of 

 1744 as quoted by Walbaum in 1792. Opinion 57 is even more 

 pertinent: "Hasselquist's 'Iter Palaestinum' was published prior to 

 1758; it was edited as to its nomenclature by Linnaeus. The Ger- 



