140 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
Velutina prolongata Carpenter, 1865 
Annals and Magazine of Natural History, series 3, 15:32. Tryon, Manual of Con - 
chology, 8:66. 
V. testa majore, subplanata, tenuiore, carnea, spira minima; anfr. iii. et 
imidio, rapidissime augentibus; vertice vix conspicuo; anfr. ult. antice 
valde porrecto; regione columellari incurvata; labio valido; axi haud, 
rimata; eperdimide tenui, rugis incrementi ornata, spiraliter haud striata. 
Long., 1; long, spir., 15; lat., .95 poll. (Carpenter.) 
Pink, under a smooth, thin yellowish epidermis, the growth-lines 
crossed by very fine slight spiral impressed striae; whorls the last very 
large, suture deeply impressed; aperture long oval, junction of columellar 
and outer lip somewhat angulated. Length, 10 mm. (Tryon, Manual of 
Conchology.) 
Type in United States National Museum. Type locality, Neah Bay. 
Range. Bering Strait to Monterey, California. 
Velutina laevigata (Linnaeus) Muller, 1776 
Plate 92, fig. 8 
Systema Naturae, 12th ed., 1250. Prodromus Zodlogice Daniccc, PI. 101, figs. 1-4. Tryon, 
Manual of Conchology, 8:65; PI. 27, figs. 41-44, 48, 59. 
H. testa imperforata obovata obtussima pellucida laevissima. Testa 
magnitudine Pisi, pellucida, laevissima, nitida, obovata, obtussima. Umbili¬ 
cus vix ullus. Apertura magna, sublunata, postice elongata. Color cornu 
striis obsoletis, longitudinalibus, obscurioribus; labio interiore albo. (Lin¬ 
naeus, Muller.) 
Shell thin, translucent, whitish, or usually light pink, with numerous 
fine revolving striae crossing the minute growth-lines; epidermis thin, 
transparent horn-color, somewhat tufted on the revolving striae, whorls 
three and a half, suture deeply impressed. (Tryon, Manual of Conchology.) 
Type in Zoology Museum, Copenhagen. Type locality, England. 
Range. Icy Cape, Arctic Ocean, to Monterey, California; also Atlantic. 
Velutina coriacea Pallas, 1788 
Nova Acta Acad. Pctropolitana, 3:237. Tryon, Manual of Conchology, 8:67; PI. 27, 
figs. 49, 50. 
Testa transversim ovata, subauriculata, dum humet cartilagineo-cornea 
(sicca membranaceo-cornea), lutescente, subpellucente, incrementi, striis, 
imo (in adultis) rugis, subimbricata; labri margine hirsutie quadam exas- 
perato; spira laterali, submarginali simplici, et interius, praesertim in 
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