COMPLETE GRAU : PECTINIDAE OF THE EASTERN PACIFIC 133 



Pecten magnificus Sowerby. Dall, 1909, p. 289. "F. subnodosus van" 

 Pecten (Lyropecten) magnificus Sowerby. Grant & Gale, 1931, p. 182, 

 pi. 9, fig. 1 ; pi. 10, fig. 6. Galapagos Islands. — Hertlein & Strong, 

 1939, p. 369. Late Pleistocene of James Island, Galapagos. 



Holotype: British Museum. 



Type locality : Galapagos Islands. 



Original description: Pect. testa subaequivalvi, aequilaterali, aurf- 

 culis inaequalibus; striis radiantibus exiguis numerosissimis, radiisque 

 tredecim, crassiusculis, rotundatis, nonnunquam subnodosis; intus alba 

 purpureo marginata ; long. 5.5, lat. 2., alt. 5.5 poll. 



Remarks: The author examined one complete specimen and one left 

 valve in the Stanford University collection, and five valves on loan from 

 the U.S. National Museum. Apparently Nodipecten magnificus differs 

 from N. subnodosus only in the greater number of ribs ( 12 to 14 on the 

 right valve, 13 to 15 on the left) and in a reversal of their quantity, the 

 left valve having one more rather than the right. Those criteria would 

 seem to entitle N. magnificus to only subspecific rank, but the species is 

 known by so few specimens that a change in its status seems inadvisable 

 at present. 



Sowerby's variety y8 was probably a specimen of N. subnodosus; see 

 Remarks under that species. 



Geographical range: Galapagos Islands. (Ecuador doubtful.) 



Geochronological range: Pleistocene, Recent. 



Bathy metric range: No data available. 



Ecological data : None available. 



Genus HINNITES Def ranee 1821 



Hinnites Def ranee, 1821, p. 169. Type species: Ostrea crispa Brocchi, 

 1814, p. 567 [= Hinnites cortesyi Defrance, 1821, p. 169; Atlas, 

 pi. 38, figs. 1, la; designated type species by Defrance]; type 

 locality: Pliocene of Placentino and Asti, north Italy. 



Hinnita Ferussac, 1822, p. xl. [Invalid emendation of Hinnites De- 

 france.] Type species: Lima gigantea Gray, 1825, p. 139 [desig- 

 nated type species (as Hinnites giganteus) by Gray, 1826, p. 103; 

 non Plagiostoma (= Lima) gigantea J. Sowerby, 1812, p. 176, pi. 

 77 (Jurassic) ; Hinnites giganteus renamed Pecten (Chlamys) 

 multirugosus by Gale, 1928, p. 92] ; type locality: Straits of Juan 

 de Fuca, between SW end Vancouver Island, Canada, and Wash- 

 ington, USA. 



