Geological Papers. 217 



Genus Eela Gray. 



Shell oval, fusiform, thin; spire produced; canal short; sinus 

 small, near suture; columella flattened; operculum pointed at both 

 ends (Arnold). A characteristic species is Pleurotoma tut'ricula 

 Montf. 



49. IBela sanctse monicse Arnold?. Plate V, figs. 49a, 6. 



Only a fragment of the body whorl of this shell was obtained. 

 It had the characteristic sculpture of the above species; aperture 

 not seen. 



Fragment from the Quiilayute formation. 



50. Bela fidicula Gould. Plate V, fig. 50. 



The classification of this species was made by comparing the 

 specimen with specimens in the museum of the Leland Stanford 

 Junior University. 



Shell small, thin; spire elevated; apex subacute; whorls five (to 

 seven), angular, forming a broad shoulder at the suture; surface 

 ornamented with about sixteen prominent, subacute, axially ar- 

 ranged ribs, which extend from suture to suture, the ribs forming 

 an angle forward across the table-like band to connect with the 

 ridge in front of it across the suture on the next whorl above; sur- 

 face also sculptured with spiral sulcations, which become spiral 

 lines on the lower part of the body whorl to its lower extremity; a 

 knuckle-shaped ridge begins at the notch in the lip and borders 

 the tabular area in front of suture from lip. to apex, caused by a 

 slight elevation on each rib where it forms the angle to cross from 

 whorl to suture; suture deeply impressed, distinct; aperture sub- 

 elliptical; canal short; body whorl ventricose, without transverse 

 sculpture on the lower part; pillar smooth internally; striate ex- 

 ternally. 



Dimensions: Axial length, 9; greatest lat., 4; height of body 

 whorl, including canal, 6; of aperture, including canal, 6. 



Distinguishable from B. sanctm moniccB Arnold by smaller size 

 and greater angulation of whorls. 



The label with the specimens with which the specimen was com- 

 pared stated that the shells were from the lower San Pedro series 

 (Upper Pliocene) of California. 



The specimen, the only one of the species obtained, was found 

 among the Pliocene shells from Quiilayute, Wash. 



Family LVIII BucciNlD^; Genus Buccinum Linne. 



Shell inflated, smooth, or transversely ribbed; spire moderately 

 high; aperture wide; canal short, wide open; outer lip sharp, thin: 

 inner lip somewhat callous. 



