NO. 3 CUSHMAN AND MCCULLOCH : SOME NONIONIDAE 161 



of the apertural face, extending over slightly onto the ventral side, with 

 a slightly toothed lip. 



Length 0.45-0.60 mm; breadth 0.30-0.45 mm; thickness 0.15- 

 0.20 mm. 



Holotype (AHF no. 34) from locality 472. Paratype figured from 

 locality 532. 



This species differs from Nonionella auricula Heron-Allen and Ear- 

 land in the raised and limbate sutures, swollen at the inner end ; the dis- 

 tinct apertural lip, which is toothed; and the larger number of chambers. 



Stations: 1003, 1041, 201, 2086, 409, 436, 457, 458, 471, 472, 

 531, 532. 



Distribution. — The type locality is Hood Island, Gardner Bay, Gala- 

 pagos. Locality 532 is off East Beach, Independencia Bay, Peru, in 5 fms. 

 This species is recorded also from Monterey Bay, California, in 25 fms. ; 

 off Mexico in 8-15 fms.; in shallow waters off Galapagos; and off Peru. 



Nonionella miocenica Cushman 

 Plate 18, Fig. 1 



Nonionella miocenica Cushman, Contr. Cushman Lab. Foram. Res., 

 vol. 2, pt. 3, 1926, p. 64; Bull. Scripps Instit. Oceanography, Tech. Ser., 

 vol. 1, 1927, p. 149. — Cushman, Stewart and Stewart, Trans. San Diego 

 Soc. Nat. Hist., vol. 6, 1930, p. 61, pi. 8, figs. 6a-c. — Cushman and Par- 

 ker, Contr. Cushman Lab. Foram. Res., vol. 7, 1931, p. 8. — Cushman 

 Special Publ. 5, 1. c, 1933, pi. 23, figs. Za-c. — Barbat and Johnson, Journ. 

 Pal., vol. 8, 1934, p. 11, pi. 1, figs. 1-4.— Cushman, U.S. Geol. Survey 

 Prof. Paper 191, 1939, p. 31, pi. 8, fig. 9. 



Nonionina auris Cushman (not d'Orbigny), Contr. Cushman Lab. 

 Foram. Res., vol. 1, pt. 4, 1926, p. 91, pi. 13, figs. Aa-c. 



Test subtrochoid, small, periphery broadly rounded; chambers dis- 

 tinct, slightly inflated, 8-10 in the adult whorl, on the ventral side with 

 the last chambers developing a distinct rounded lobe covering the umbili- 

 cal region; sutures distinct, slightly curved, very slightly depressed; wall 

 smooth, finely perforate; aperture low, elongate, at the base of the aper- 

 tural face and extending over onto the ventral side beneath the lobe of 

 the last-formed chamber. 



Length 0.30-0.45 mm; breadth 0.25-0.35 mm; thickness 0.20- 

 0.25 mm. 



Stations: A-2, Or-1, C-10, 7, 24, 35, 311. 



