CLASS GASTROPODA 149 
Turbonilla lordi E. A. Smith, 1880 
Plate 56, figs. 4, 4a; Plate 54, figs. 7,7a 
Annals and Magazine of Natural History, series 5, 6 :2S8. 
Shell subulate, whitish, banded at the sutures with light-brown, with 
a narrow line of the same color around the middle of the whorls. Ihe 
latter 12-13, slightly convex, about twice as broad as high, longitudinally 
ribbed and spirally striated in the interstices. Costae only slightly oblique, 
scarcely arcuate, rather broader than the interstices, about 18-20 on each 
volution, those upon the last terminating abruptly at the periphery. Last 
whorl finely concentrically striated below the middle. Base pale brown, 
with a single white zone. Aperture a little longer than broad and a trifle 
effuse at the base. Columella simple, white, nearly erect. Length, 13; 
diameter, 3$4 mm. (E. A. Smith.) 
Type in British Museum. Type locality, Vancouver Island, British 
Columbia. 
i Described as Chimnitzia lordi. 
Turbonilla heterolopha Dali and Bartsch, 1909 
Plate 56, fig. 9 
Bulletin 68, United States National Museum, 118; Pi. 11, fig- 9. 
Shell small, slender, chestnut-brown, with wax-yellow apex. Nuclear 
whorls two and one-half, forming a depressed, helicoid spire, whose axis 
is at right angles to that of the succeeding turns, in the first of which it is 
one-fourth immersed. Post-nuclear whorls flat, appressed at the summit, 
not constricted at the periphery, forming a spire almost straight, uninter¬ 
rupted outline. Axial sculpture consists of very broad, low, rounded, 
slightly retractive, axial ribs, which are absent on the first turn but of 
which twenty occur upon the second to fourth, twenty-eight upon the fifth 
and penultimate turn. Intercostal spaces very narrow, marked by six 
spiral lines of pits. Sutures poorly defined. 1 eriphery and base of the 
last whorl well-rounded, marked by the feeble continuations of the axial 
ribs and seven, equally spaced, incised, spiral lines. Aperture oval; pos¬ 
terior angle acute; outer lip thin, showing the external markings within; 
re-enforced on the inside by four or five slender, equally spaced, spiral 
cords; columella strong, somewhat twisted. Length, 5.5; diameter, 
1.8 mm. (Dali and Bartsch.) 
Type in United States National Museum, No. 153065. Type locality, 
San Diego, California. 
Range. San Diego, California, to San Hipolito Point, Lower Cali¬ 
fornia. 
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