42 
Fam. 7. Pectenide. 
Foot long, cylindrical, often byssiferous at the base, angularly 
bent. Mantle inflexed on the inner edge and the outer circumference 
with bright ocelli. Shell closed. Hinge not or obscurely toothed. 
1. PEcTEN. 
l. P. striatus, t. 376. f. 1, 3a. 
2. P. sanguineus, t. 376. f. 5. 
3. P. varius (figs. 23 & 24). 
4. P. fue, t. 376. f. 3. 
5. P. similis, t. 376. f. 7. 
6. P. niveus, t. 376. f. 2. 
Fig. 23.—Pecten varius. 
Left valve. Right valve. 
aa’, adductor muscles. p, pedal impression. m, pallial line. /, ligamental 
margin. c, cartilage. e, anterior ears. 0, byssal sinus. 
Fig. 24.—Pecten varius. 
m, the inner pendent of the mantle or curtain, finely fringed: it is not 
naturally so wide open as here represented, as the curtains of the two 
valves remain in contact at one point on the posterior side, separating 
the branchial from the exhalent currents. dr, the gills. 
2. JANIRA. 
1. J. maxima, t. 376. f. 4. 
2. J. Jacobea, t. 374. f. 3. 
