336 CALIFORNIA. ACADEMY OK SCIENCES. 



Several specimens of iliis species? were foiiinl in the lower San Pedro series of 

 San IVtIru. Tliey were in a perfect state of preservation, and if tliey had been 

 found on the beach would, no doubt, have been called "dead shells." It is po.ssible 

 that some of the shells reported as "dead on beach " have been washed down from 

 the fossil beds, and have been listed as living. 



Found in the upper San Pedro series of San Pedro, and the lower San Pedro 

 series of Deadman Island; rare. 



Living. — San Pedro (Williamson). 



Pleistocene. — San Pedro (Arnold). 



Superfamily ZYGOBRANCH lA. 

 Family LXXXVl. HALIOTID/E. 



Genus Haliotis Linne. 



Shell ear-shaped, with a small flat spire; aperture very wide, iridescent; exterior striated, 

 dull; outer angle perforated by a series of holes, those of the spire progressively closed. 



Haliotis gigantea Cheran. is a characteristic species. 



393. Haliotis fulgens Philippi. 



Haliotis ftilgens Phil., Zeitschr. f. Mai, p. 150, 1845; Abbild. und Beschreib., p. 11, Pis. VII and 



VIII, fig. I, 1847. Cpr., Brit. Assn. Rept., 1863, p. 574. Trvon, Man. Conch., Vol. 



XII, p. 81, PI. XII, figs. 61, 62, 1890. Williamson, Proc. U. S. Nat. Mus., Vol. 



XV, 1892, p. 198. 

 Haliotis splendens RvE., Icon. Conch., Pi. Ill, h^. 9. Keep, West Coast Shells, p. 90, fig. 76, 



1892. Weinkauff, Conch. Cab., p. 24, Pis. VII and VIII. 



Shell large, flat, oval; spire very slightly raised near margin of shell; surface spirally 

 grooved, the grooves appearing as ridges on the interior; holes four to seven, elevated margins; 

 interior highly colored; outer layer of shell brownish red. 



Dimensions. — Long. 112 mm.; lat. 88 mm.; depth 21 mm. 



Distinguished from //. rufescens and //. cracheroidii by grooved surface and 

 colors of interior. 



This specimen, which was found in the conglomerate of the upper San Pedro 

 series of Deadman Island, is probably the first authentic record of an Haliotis from 

 the Pleistocene of California. It was a perfect specimen when found, but in remov- 

 ing it from the matrix it was unfortunately broken into several fragments. A small 

 but perfect specimen of this species was found in the Pleistocene (uj^per San Pedro 

 series) at S2)anish Bight, San Diego. 



Dr. Cooper has reported II. cracheroidii and H. rufescens from the Pleistocene 

 of San Pedro, but upon examination of the fossils (?) upon which he based his report, 

 which are now in the State Museum Collection at the University of California, they 



