NO. 2193. WEST AMERICAN MARINE M0LLUSKS—BART8CH. 647 



curved and slightly revolute; parietal wall covered with a thin 

 callus. 



The type and 21 specimens, Cat No. 135053, U.S.N.M., were col- 

 lected by Henry Hemphill in the Pliocene of a well boring, 140 feet 

 below the surface, at San Diego, California. The type has lost the 

 nucleus and probably half of the first postnuclear turn. The nine 

 remaining whorls measure — length, 6.7 mm. ; diameter, 1.9 mm. The 

 nuclear whorls were described from one of the other specimens, 

 which may be considered a paratype. 



TURBONILLA (PYRGOLAMPROS) PUGETENSIS, new species. 



Plate 44, fig. 4. 



Shell small, elongate conic, wax yellow with a broad band of pale 

 brown which extends posterior from the periphery, gradually fading 

 into the general lighter color. Nuclear whorls and early postnu- 

 clear turns decollated in all our specimens; those remaining feebly 

 shouldered at the summit, flattened in the middle, becoming consid- 

 erably contracted and rounded toward the suture, marked by broad, 

 well rounded slightly protractive axial ribs which become somewhat 

 enfeebled and expanded toward the summit. Of these ribs 16 occur 

 upon all of the turns remaining excepting the last which has 18. 

 Intercostal spaces shallow, about as wide as the ribs. Suture moder- 

 ately contracted. Periphery of the last whorl well rounded. Base 

 somewhat inflated, well rounded, marked by the feeble continua- 

 tions of the axial ribs which become evanescent before reaching the 

 middle of the base and numerous very fine spiral striations which 

 are also present on the spire. Aperture broadly oval ; posterior an- 

 gle acute; outer lip thin showing the external sculpture within; 

 inner lip decidedly oblique, slender and somewhat revolute; parie- 

 tal wall glazed with a very thin callus. 



The type and 7 specimens, Cat. No. 268754 U.S.N.M.,were obtained 

 by the U. S. Bureau of Fisheries at Northwest Point, Elliott Bay, 

 Seattle, Washington. The type consists of the last 5 postnuclear 

 whorls and measures — length, 4 mm. ; diameter, 1.5 mm. 



TURBONILLA (PYRGOLAMPROS) TREMPERI. new species. 



Plate 44, fig. 7. 



Shell short, elongate conic, pale brown. Nuclear whorls a little 

 more than two, decidedly depressed helicoid, having their axis at 

 right angles to that of the succeeding turns, in the first of which they 

 are about one-fifth immersed. Postnuclear whorls flattened in the 

 middle, sloping toward the suture and the almost appressed summit, 

 marked by strong lamellar, decidedly retractively slanting, axial ribs, 

 of which 12 occur upon the first, 14 upon the second to fourth, 16 



