pupoides. 249 



ican species. The prominence within the outer lip defining 

 the sinulus is more strongly developed than in Recent species, 

 though some approach to it has been figured in Vol. XXVI, 

 pi. 12, fig. 5, and others. The parietal and columellar teeth 

 shown in the original figure appear to have been adhering 

 siliceous material ; or at least, I find no definite traces of them 

 in the specimen examined. 



The species seems thus to be a true Pupoides, somewhat 

 more primitive than existing American species by the more 

 distinct angular lamella. 



Pupoides incolatus (White). Pupa incolata White, Pow- 

 ell's Rep. Geol. Uinta Mts., 1876, p. 130. Pupa ( Leucocheila) 

 incolata White, 12th Ann. Rep. U. S. Geol. and Geogr. Surv. 

 Terr, for 1878, pt. 1, 1883, p. 47, pi. 19, f. la-c. Eocene, 

 Upper Green River group : Valley of Henry 's Fork south of 

 Green River City, Wyoming. 



Pupoides maeginatus (Say). Vol. XXVI, p. 111. 



Recorded by Hanna (Proc. Cal. Acad. Sci., 4th Ser., XII, 

 no. 26, p. 514) from several islands in the Gulf of California: 

 Angel de la Guarda, Tortuga, San Lorenzo, San Esteban, 

 Montserrate. "The specimens cannot be distinguished from 

 the species as it occurs in Arizona." 



Pupoides catalinensis Hanna. Text-fig. 17. 



Shell similar to P. marginatus but more slender and cylin- 

 drical; whorls five, rounded, suture deeply impressed; epi- 

 dermis roughened parallel to growth lines, so the species is 

 without gloss; growth lines fairly regular with an occasional 

 white streak parallel to them; umbilicus rimate; peristome 

 broadly reflected, thickened within and almost complete across 

 the body whorl; no indentation of the aperture on the upper 

 palatal wall (Hanna). 



Altitude 4.5, diameter 1.9 mm. Type. 



Altitude 4.3, diameter 1.7 mm. 



Altitude 4.0, diameter 1.5 mm. 



Altitude 3.8, diameter 1.6 mm. 



Santa Catalina Island, Gulf of California (J. C. Chamber- 

 lin, Cal. Acad. Exped.). 



