CLASS GASTROPODA 
273 
Columbella carinata californiana Gaskoin, 1852 
Proceedings, Zoological Society of London, 12, 1852. Arnold, Paleontology of San 
Pedro , California; PI. 10, fig. 9, 1903. 
Testa oblongo-ovata, subpyramidalis, laevis, nitens, brunnea, vel brun- 
neo variabilis, aliquando lineis tenuibus, fortioribus, aut latiusculis ir- 
regularibus; spira acuminata dimidium testae subaequante; anfractibus 
septem convexis; apertura lata subquadrangulari; labio externo tenuius- 
culo intus denticulato, labio intemo leviter denticulato; dorso antice trans- 
versim striato; peritremate purpureo-nigricante; canali brevi. (Gaskoin.) 
Shell oblong-ovate, smooth and shining, rather pyramidal, of a brown 
color, varying much in intensity and markings, in being sometimes uni¬ 
form, in others with one or two thin darker-colored cinctures, or with 
broad and continuous dark irregular markings spirally passing on the 
whole to be lost in the deeper color of the apicine volutions; spire acumi¬ 
nated, about half the length of the shell; volutions seven, convex; aperture 
wide, subquadrangular; outer lip rather thin, denticulated within on its 
whole extent; inner lip slightly denticulated along its rather angular inner 
edge; fine striae transverse the anterior part of the dorsum; peritreme of 
a dark purple-brown color; channel very short. Length, 40/100; width, 
20/100 in. (Gaskoin.) 
Type in Cuming Cabinet. Type locality, San Diego, California. 
Range. Forrester Island, Alaska, to Salina Cruz, Mexico. 
Columbella gausapata Gould, 1850 
Proceedings of the Boston Society of Natural History, 3:170. Mollusca and Shells of 
the United States Exploring Expedition; PI. 19, fig. 337, 1852. 
T. parva, solidula, elongata, ovato-conica, ad basim spiraliter striata, 
sub epidermide rudi subrufo concinne rufo-recticulata vel variomode 
maculata aut fasciata; spira conico-turrita, anfr. 6-7 convexiusculis, ultimo 
2/3 long, testae, antice subito in rostrum brevem angustato; sutura valde 
impressa; apertura angusta lunata; labro simplici, rufo, intus sparse 
denticulato. Long., l / 2 ; lat., 1/5 poll. (Gould.) 
Shell small, solid, ovate-turreted, elongated, without striation except a 
few lines around the beak, smooth, polished, covered with a dense russet- 
colored epidermis, having indistinct, paler maculations beneath. Whorls 
six or seven, nearly flat, the last less than two-thirds the whole length, 
abruptly sloping to the beak, which is short; suture linear, abrupt, deeply 
impressed; aperture one-third the length of the shell, narrow-lunate; lip 
simple, with a few rib teeth within, both margins deep purplish-brown; 
callus on the pillar not abundant; interior pale-lilac. (Gould.) 
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