21: 0143 Alectrion grammatus Dail. Santa Barbara, Val at Pie 
: istocene.) | 
; About the same size as fossatus, but more regular and com- 
pact, with a uniform Viper re of fiat spiral cords separated by 
narrow channels without intercalary minor spirals. 
 21:0144 Alectrion (Schizpyga) californianus Conr., 1856. 
os Drake’s bay, north of San Francisco, Cal., to. ‘San Ignacio 
a iy Lagoon, Baja, Cal. It is the size of fossata, with the general 
form and sculpturing of perpinguis, both being considered forms 
of one species by some conchoilogisis. It occurs in the Pleistocene f 
in various localities in California, and at San Quintin bay, Baja — 
Sa Cal. 
 21:0145 Alectrion perpinguis Hinds, 1844. (159), 2714 (Var.). 
‘Shell often rather thin, whitish or light brown, with some- 
times orange inside; surface checked into a multitude of little 
squares; outer lip sharp, thin, thickened near the edge in mature 
specimens; length 20, greatest diameter 11 mm. In some indi- 
hi viduals a spiral stripe of chestnut runs thru the middle of each 
oe whorl, the variety bifasciata having two, while rarely three 
_  gtripes may be seen. These can only be considered color forms. 
Occurs from Puget Sound to Cedros Island, Baja Cal. 
21:0146 Alectrion dentiferus Powys, 1833. Peru and Chile. 
21:0147 Alectrion rubricatus Gould, 1849. Peru; Chile. 
21:0148 Alectrion gayii Kiener, 1834. Peru; Chile. © 
Dall says probably exilis Powys, 1835, and obscurus Hupe, 
1854, are synonyms. 
21:0149 Alectrion planicostatus A. Adams, 1851. Payta, Peru. 
; 2170150 Alectrion mendicus Gould, 1850. (425). 
a Synonymy:—Nassa woodwardi Forbes, 1850, and gibbsi W. 
= Cooper, 1857. 
oe; Kodiak Island, Alaska, to San Diego, Cal. Also in the 
Pliocene and Pleistocene. <A variable species, rather slender, the 
- surface marked with numerous fine, spiral lines, crossed by ridgy 
' warices; color light brown, peristome white; length 13-22, di- 
ameter 6-9 mm. . 
as 0151 Alectrion cooperi Forbes, 1850. (160, 406). 
_ ~~ Puget Sound to Todos Santos bay, Baja, Cal. A few strong 
_ transverse ribs and small spiral lines distinguish this from men- 
= dica, of which it is scarcely more than a form, tho Dall considers 
» it distinct.“ 
21:0152 Alectrion cerritensis Arnold, 1903. Los Cerritos, Cal. 
(Pleistocene). 
Resembles young, but narrower, fossatus. Found living 
from San Pedro, Cal., to Gulf of California. 
21:0153 Alectrion pagoda Reeve, 1844. 
Synonymy: Buccinum decussatum Kiener, 1834, non L.; 
Nassa acuta Cpr. 1857; and corpulenta C. B, Adams, 1852. Gulf 
of Cal. to Panama. 
