204 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 2 



Adams were dredged at Loc. 27,229 (C.A.S.), in Bahia Honda, 

 Panama. These specimens are much smaller than the type as selected 

 and described by Dall and Bartsch^'^ but have only 6 postnuclear whorls, 

 while the type is said to have 10. They agree in other ways with the 

 description. The only other west coast species to be described in this 

 subgenus, Turbonilla churia Bartsch^''' from Ecuador, lacks the pe- 

 ripheral keel but is otherwise very similar to our specimens and has 

 about the same measurements. 



Turbonilla (Gareliopsis) israelskyi Strong & Hertlein, new species 



Plate 19, Fig. 13 



Shell very slender, translucent, white; nuclear whorls 2^, de- 

 pressed helicoid, with the axis nearly at right angles to that of the 

 following whorls, in the first of which they are slightly immersed ; post- 

 nuclear whorls 6, moderately rounded, veiy narrowly tabulated at the 

 summit, sutures distinct; spiral sculpture of regular incised lines, of 

 which about 15 appear between the sutures; axial sculpture only indi- 

 cated by a faint row of nodules at the summit of the whorls ; periphery 

 of the last whorl rounded; base long, rounded, marked like the spire 

 with about 8 incised spiral lines; aperture oval, outer lip thin; columella 

 strong, twisted. The type measures: length, 2.3 mm; diameter, 0.8 mm. 



Holotype: No. 755 (Calif. Acad. Sci. Paleo. Type Coll.), from 

 Loc. 27,229 (C.A.S.), dredged in from 3 to 9 fms. in Bahia Honda, 

 Panama. L. G. Hertlein collector. Five additional specimens were 

 dredged at the same locality. 



This species differs from Turbonilla stenogyra Dall & Bartsch,^^ 

 the only other west coast species described in the subgenus, in the smaller 

 size, fainter axial sculpture, and slightly tabulated whorls. 



This species is named for Mr. Merle C. Israelsky of Houston, 

 Texas, formerly Assistant Curator of the Department of Paleontology 

 of the California Academy of Sciences. 



36 Dall, W. H., and Bartsch, P., U. S. Nat. Mus., Bull. 68, 1909, p. 130, 

 pi. 12, figs. 14, 14a. 



37 Turbonilla (Asmunda) churia Bartsch, Proc. U. S. Nat. Mus., vol. 69, 

 art. 20, December 16, 1926, p. 11, pi. 3, fig. 5. "On the coast southeast of Punta 

 Santa Elena, Santa Elena Peninsula, Ecuador." 



38 Turbonilla (Careliopsis) stenogyra Dall & Bartsch, U. S. Nat. Mus., Bull. 

 68, 1909, p. 130, pi. 12, figs. 1, la. "San Hipolito Point, Lower California." 



