AUNOLD — THE rALEONTUUXi V AND STKATUiliAril Y OF SAN PKDUO. 225 



form fdiiiiil in this locality. There is no doiiht alioiit the close relatioiishij) ol' the 

 three species, [tarda rensis, robustns and rtif/osun, as the large series of each whicii the 

 writer has had during the preparation of tliis paper shows forms nearly, if not quite, 

 filling the gajis between the three types. /'. Onrbai-cnais is probably the precursor 

 of the other two forms, and although it occurs in the later horizons in whicli the 

 olhcr two sjiecies are the denoniinating types, still, judging by numbers, this foiin 

 rcaelu'd its maxiniuni devclopuuMit in the upper San Pedro series. 



.S|)t'cimens idcntidetl by Dr. Dall. 



Common in the Pliocene, rare in tiie lower San Pedro series of Deadman 

 Island; one or two specimens found at each of Deadman Island, San Pedro, and 

 Crawfish (ieorge's in the upper San Pedro series. The specimen figured is from llie 

 Pliocene at Deadman Island, and is now in the collection of Delos Arnold. This 

 and several other species have been reported from the "Miocene of Deadman 

 Island." Although the lowest horizon at Deadman Island is Miocene, still all of the 

 fossils reported as occurring in the Miocene at that place come out of a Pliocene 

 stratum wiiich rests unconformably ujion the Miocene. 



Jjlviiuj — San Pedro (Oldroyd; Tlaymoud). 



Pleistocene. — Santa Parbara (Trask; Cooper): San Pedro (Arnold). 



Pliocene — San Pedro (Arnold;. 



208. Fusus luteopictus J)all. 



Fiisus lu/eopichis Dav-I^, " ' Prjc. Cal. Acad. Sci.,' 1877, p. 4." (Author's unautliorized reprint, 



i.ssued March 19, 1877.) 

 Fusus ambusius Gld., Cpr., Brit. Assn. Rept., 1S63, p. 664 (pars.); (not of Gould) {fide Dall.) 

 Fusus genicnlus Conr., Gabb, Pal. Cal, Vol. II, p. 71, 1S69 (pars. syn. exel.) {fide Dall). 

 Fusus awius/us Gi.u., CooPKR, Cal. Monterey Shells, Am. Jour. Conch., Vol. VI, p. 70; Geog. 



Cat., No. 787 (most Californian writers) (fide Dall). 

 Fusus lulcopicttis Dall, Willl\mson, Proc. U. S. Nat. Mus., \^ol. X\', 1892, p. 217, PI. XX, fig. i. 



Shell small, fusiform; whorls five, convex, crossed by nine rounded ridges which reach their 

 maximum development on the middle of whorl; surface ornamented with three or four prominent 

 spiral lines, with finer ones sometimes intercalated; suture appressed; aperture subovate; outer lip 

 not thickened, with internal spiral lines; inner lip incrusted; columella short; canal very short, narrow. 



Dimensions. — Long. 19 mm.; lat. 10 mm.; body-whorl 13.5 mm.; aperture, including canal, 

 10 mm.: canal 3 mm.; dell. 38 degrees. 



Distinguishable by small size and very short canal. 



Rare in the lower San Pedro scries at Deadman Island; common in the upper 

 San Pedro series at Crawfish George's, but rare in the same horizon at San Pedro, 

 Deadman Island and Los Cerritos. Most of the specimens obtained came from 

 Crawfish George's. 



Living. — Farallon Islands to San Diego (Dall). 



Pleistocene. — San Pedro (Arnold). 



(29) March 19, 1903. 



