198 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 2 



In the key given by Dall & Bartsch^s to the west coast species in 

 the subgenus Strioturbonilla, this would precede the last species from 

 which it differs in the more numerous, protractive ribs and more slender 

 form. 



This species is named for Mr. Ignatius McGuire, formerly librarian 

 of the California Academy of Sciences, who assisted the junior author 

 on many occasions in library research necessary during the preparation 

 of several papers. 



Turbonilla (Strioturbonilla) haleyi Strong & Hertlein, new species 



Plate 19, Fig. 2 



Shell elongate-conic, white; nuclear whorls 2^, forming an ele- 

 vated helicoid spire, the axis being at right angles to that of the first 

 postnuclear whorl, in which it is nearly one half immersed, with the 

 apex projecting slightly beyond the outline of the following whorls; 

 postnuclear whorls 13, well rounded, sutures impressed; axial sculpture 

 of slender, curved, protractive ribs, of which 16 appear on the early 

 whorls, gradually increasing to 20 on the body whorl ; intercostal spaces 

 about twice as wide as the ribs; extending from suture to suture on the 

 early whorls but on the later whorls terminating a little above the 

 suture; spiral sculpture of fine, distinct, close-spaced striations over the 

 entire surface; periphery of the last whorl well rounded; base short, 

 well rounded; outer lip broken in the type; columella curved, slender, 

 slightly reflected. The type measures : length, 7.3 mm ; diameter, 1.8 mm. 



Holotype: No. 753 (Calif. Acad, Sci. Paleo. Type Coll.), from 

 Loc. 27,228 (C.A.S.), dredged in from 3 to 9 fms. off Taboga Island, 

 Panama. L. G. Hertlein collector. 



This species is unique from any other described from the west coast 

 of North America. 



In the key given by Dall & Bartsch^^ to west coast species in the 

 subgenus Strioturbonilla, this would follow nicolsi from the Gulf of 

 California. It differs in the smaller number of axial ribs, more slender 

 form, as well as in other ways. 



This species is named for Dr. George Haley, Professor of Biology 

 and Botany at the University of San Francisco, who has collected many 

 shells for the California Academy of Sciences during his many collecting 

 trips. 



28 Dall, W. H., and Bartsch, P., U. S. Nat. Mus., Bull. 68, 1909, pp. 40, 41. 



29 Dall, W. H., and Bartsch, P., U. S. Nat. Mus., Bull. 68, 1909, pp. 40, 41. 



