AKNOLD — THE PALEONTOLOtJY AND STItATKJHAniY OF SAN TEDKO. 225 



form foiiiul ill this locality. There is no doubt about the close relationship of the 

 three species, barbarensis, robustus and rugostis, as the larj;o sL-ries of each which the 

 writer has had durinj;' tlie preparation of this paper shows forms nearly, if not quite, 

 tilling the gaps between tlie three types. F. barbarensiti is probably the precursor 

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

 other two species are the denominating types, still, judging by numbers, this form 

 reached its maximum development in the upper San Pedro series. 



Specimens identified by Dr. Dall. 



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

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

 Crawfish George's in the upper San Pedro series. The specimen figured is from the 

 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 occuri-iug in the Miocene at that place come out of a Pliocene 

 stratum wdiich rests unconformably upon the Miocene. 



Living — San Pedro (Oldroyd; Raymond). 



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



Pliocene — San Pedro (Arnold). 



208. Fusus luteopictus Dull. 



Fusus iu/eopic/us Dall, " ' Proc. Cal. Acad. Sci.,' 1877, p. 4." (Author's unauthorized reprint, 



issued March 19, 1877.) 

 Fusi4S ambuslus Gld., Cpr., Brit. Assn. Rept., 1863, p. 664 (pars.); (not of Gould) {Jide Dall.) 

 Fusus genicii/iis Conr., Gabb, Pal. Cal., Vol. II, p. 71, 1869 (pars. syn. exel.) {Jide Eall). 

 Fusus ambustus (^LV>.,CooY'V.K, Cal. Monterey Shells, Am. Jour. Conch., Vol. VI, p. 70; Geog. 



Cat., No. 787 (most Californian writers) {Jide Dall). 

 Fusus luleopictus Dall, Williamson, Proc. U. S. Nat. Mus., Vol. XV, 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. 



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

 10 mm.; canal 3 mm.; defl. 38 degrees. 



Distinguishable by small size and very short canal. 



Rare in the lower San Pedro series 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. 



