642 PROCEEDINGS? OF THE NATIONAL MUSEUM. vol, 52. 



The type and 25 specimens of this species were collected by the 

 Geological Survey of Canada, at low tide to deep water, in Barclay 

 Sound, Vancouver Island. Fourteen of these are in the collection 

 of the National Museum, the others are in the Geological Survey of 

 Canada collection. 



The type, Cat. No. 211568 U.S.N.M., has lost the nucleus and a 

 part of the first postnuclear turn, the 12 larns remaining measure — 

 length, 9.2 mm.; diameter, 2 mm. The nuclear characters were 

 described from another specimen, bearing the same entry number. 



This species was reported in former publications under the name 

 of Turhonilla (StriotitrboniUa) serrae Dall and Bartsch, from which 

 it is readily distinguished by its appressed whorls, the summits of 

 Turhonilla {Strioturhonilla) serrae being decidedly shouldered. 



TURBONILLA (STRIOTURBONILLA) SANTAMARIANA, new species. 



Plate 44, fig. 2. 



Shell slender, regularly elongate conic, milk white. Nuclear 

 whorls two and one half, large, well rounded, forming a decidedly 

 elevated spire, the axis of which is at right angles to that of the 

 succeeding turns, in the first of which it is about one- fifth immersed. 

 Postnuclear whorls \Qvy high between the sutures, feebl}^ shouldered 

 at the summit, marked by very regular, almost straight, well rounded 

 axial ribs which become slightly enfeebled toward the summit and 

 terminate at the periphery. Of these ribs 14 occur upon the first 

 and second, 16 upon the third to sixth, 18 upon the ninth, and 20 

 upon the penultimate turn. Intercostal spaces a little wider than 

 the ribs, terminating abruptly, a little posterior to the suture, thus 

 leaving a narrow, smooth, spiral band at the moderately constricted 

 suture. Periphery of the last whorl well rounded. Base mod- 

 erately long, strongly rounded, marked by incremental lines, and 

 the fine very regularly and closely spaced wavy spiral striations. 

 Aperture elongate oval ; posterior angle acute ; outer lip thin ; inner 

 lip slender, oblique, slightly revolute, without visible fold; parietal 

 wall glazed with a thin callus. 



The type. Cat. No. 267744c U.S.N.M., was dredged in shallow 

 water in Santa Maria Bay, Lower California. It has 11 post- 

 nuclear whorls and measures — length, 4.7 mm. ; diameter, 1 mm. 



TURBONILLA (STRIOTURBONILLA) DOREDONA, new species. 

 Plate 44, fig. 3. 



Shell very regularly, broadly elongate conic, yellowish white. Nu- 

 clear whorls 2f , strongly rounded, smooth, forming a strongly elevated 

 spire having its axis at right angles to that of the succeeding turns, 



