bartsch: northwest coast mollusks 



567 



TABLE I 

 Additional Data Pertaining to the Above Fartulums 



Fartuliun orcutti, Dall 



Fartuliun occidentale, sp. nov . 

 Fartulum hemphilli, sp. nov.. . 

 Fartulum bakeri, sp. nov 



Cat. No. 



U. S. N. M. 



60927 Type 

 152 166 Type 



340728 Type 



340729 Type 



Height 

 in mm. 



2 . I 



31 

 2-5 



Diameter 

 in mm. 



0.7 

 0.9 

 0.7 

 0.6 



Type 

 locality 



San Diego. 

 San Pedro. 

 San Pedro. 

 San Pedro. 



Fartulum orcutti Dall is the most abundant species on the West 

 Coast; thousands of specimens have been examined. It ranges from 

 vSan Pedro to Lower California. F. occidentale Bartsch is also abundant, 

 and ranges from San Pedro to Lower California. F. hemphilli Bartsch 

 is rather rare, and occurs from San Pedro to Lower California. F. 

 bakeri Bartsch is very abundant, ranging from San Pedro to Lower 

 California. 



Elephantanellum, gen. nov. 



vSurface of shell marked by raised ridges which coincide with the 

 long axis of the shell; annulations strongly develooed; operculum thin, 

 corneous, concave. Type Caecum hexagonum Cpr. 



The genus Elephantanellum has a number of representatives in the 

 more southern waters of the Pacific. From north of San Diego, only 

 a single species is known, Elephantanellum carpenteri, sp. nov. This 

 is a large thin shell, in which the segments of all stages are marked by 

 very fine spiral sculpture and a little stronger incremental lines, while 

 the last portion of these stages bears well developed annuli. These 

 increase in number in succeeding stages. The type, Cat. No. 340726, 

 U. S. N. M., comes from San Diego and measures: length, 4.8 mm.; 

 diameter, 0.9 mm. We have seen it from various stations from San 

 Pedro south to Lower California. 



Caecum Fleming, Edinb. Encycl. 7:97. 1817. 



Brochus Brown, 111. Rec. Conch. Great Britain, 124-125, in part. 



1827. 

 Cornuoides Brown, 111. Rec. Conch. Great Britain, 125, in part. 1827. 

 Odontina Zborzewski, Mem. Soc. Nat. Mosc. 3: 310. 1834. 

 Odontidium PhiHppi, Moll. Sci. Utr. i: 102. 1836. 

 Anellum Carpenter, Cat. Mazatlan Shells, 319. 1856. 



Surface of the adult shell marked by numerous axial annulations. 

 Operculum thin, corneous, concave. Type Dentalium trachea Montagu. 



