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MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
sorte de couronne. Ces branchies sont coniques, colorees en rose vif, 
pressees les unes contre les autres, libres a leur sommet, et comme formees 
de petits fragments soudes et articules. Le support du nucleus est done 
aussi long que Tappendice caudi forme, et ce dernier n’a ni nageoire a sa 
pointe, ni chapelet a sa suite. La bouche de cette firole aboutit a un sac 
assez large vivement peint en rose, qui se retrect en un petit canal, qui se 
dilate et se renfle au milieu du corps, puis diminue de volume en aboutissant 
an centre du nucleus. Ce mollusque est blanc hyalin, fragile, daspect 
tuberculeux Iegerement teint <^a et la de rose, principalement sur le rebord 
de la nageoire dorsale et sur les lignes les plus saillantes du corps. Le 
nucleus en dedans est souvent bleuatre et parfois d’un noir intense. Le 
coeur nous parait loge dans un renflement place sous les yeux, et se fait 
reconnaitre a ses mouvements regulieres de pulsation. (Lesson.) 
Type in Museum, Paris. Type locality, North Pacific. 
Range. North Pacific and North Atlantic. 
Family CARINARIIDAE 
Genus CARINARIA Lamarck, 1801 
Shell hyaline, symmetrical, limpet-shaped, with a posterior subspiral 
apex and a fimbriated dorsal keel; nucleus minute, dextrally spiral. (Wood¬ 
ward, Manual of the Mollusca.) 
Type. Car inaria cymbium Deshayes. 
Distribution. Mediterranean, and warmer parts of the Atlantic and 
Indian oceans and North and South Pacific; Pelagic. Fossil, Miocene. 
Turin. 
Carinaria latidens Dali, 1919 
Proceedings of the United States National Museum , 56:342. 
Animal slender and mostly translucent yellowish; the extreme tail for 
a short distance, the muzzle, and the liver, contained chiefly in the shell, 
are dark purple; the crop or anterior food cavity is pinkish; the eyes very 
vivid black, contained in short subcylindric processes behind and a little 
outside of the short slender tentacles. The surface of the body is covered 
with small translucent acute pustules. The gills are small and protrude 
from the shell. The ventral fin is rounded quadrate, about one-third of 
the way from the muzzle to the tail. The shell and its included organs are 
about midway of the total length. The ventral sucker is small on the 
ventral and near the posterior edge of the fin. The dorsal fin halfway 
between the shell and the tail is lower, rounded triangular, diminishing in 
height backward. The shell is small, with a minutely coiled apex, and 
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