26 THE NAUTILUS. 



Murex (Phyllonotus) stearnsii new species. 



Shell small, white, tinted with reddish brown on the varices 

 of which there are eight, thick and wide, on the early whorls 

 and seven on the last whorl; nucleus small, smooth, of two 

 whorls, followed by about five subsequent whorls; shoulder 

 high, rounded, the space between it and the suture pit-like 

 between the varices; spiral sculpture of nine or ten low, 

 strong ridges, incurved and guttered on the summit of the 

 varices, with an intercalary series of smaller cords, the whole 

 sharply spirally threaded and crossed by fine, rather sharp 

 axial threads between the cords ; aperture oval, hardly lirate, 

 canal short, broad, almost closed, the base of the whorl some- 

 what constricted. Height 50, diameter of shell 35, length of 

 aperture and canal 33 mm. 



Fossil on Magdalena Island. Recent from Acapulco to 

 Manta, Ecuador. 



This is nearest to P. humilis Broderip, of Panama, which 

 has recurved spines, is generally more compact, and when 

 adult much smaller. 



LIST OF SHELLS FROM ANGEL AND TIBURON ISLANDS, GULF OF CALI- 

 FORNIA, WITH DESCRIPTION OF A NEW SPECIES. 



Collected by L. C. Decius and A. D. Fyfe, November, 1917. 



BY I. S. OLDROYD. 



ACANTHINA ANGELICA, n. Sp. 



Shell elongate with sloping shoulders, surface with heavy 

 revolving striae crossed by fine longitudinal ribs, which over- 

 lap forming a net- work; color grayish with markings of 

 chocolate-brown here and there. Whorls five ; aperture pur- 

 plish within; columella straight, same color as aperture; 

 outer lip thickened, dentate and with a strong tooth at its 

 base. Alt. 26, diameter 13 mm. Canal short, open. It is 

 nearest to Acanthina engonata Conr., but differs from it in 

 slope of shoulders, sculpture, and color of aperture. 



Type is in the Stanford Collection. 



