VenuSx 
MOLLUSC A. VENERIDiE . 
449 
liCngth half an inch, breadth three quarters ; white, with a rufous tinge ; 
finely striated longitudinally ; beaks small, nearly central ; in each valve are 
two strong plain teeth, and a smooth long posterior one under the cartilage. 
534. V. sinuosa. — Suborbicular, with a longitudinal sinuosity 
from the beaks, flat transverse striae and obscure longitudinal 
ones. 
Penn. Brit. Zool. iv. 95. t. Iv. f. 51. A. Don. Brit. Shells, t. xlii. f. 2. 
Mont. Test. Brit. 120. Turt. Biv. Brit. 154. t. x. f. 9. — English and 
Irish shores. 
Diameter |ths of an inch ; rounded at both sides ; beaks nearly central, with 
a heart-shaped slightly carinate impression in front ; inside rich yeUow, in one 
valve two of the teeth are cloven, and one in the other. 
V. 535. aurea. — Transversely ovate, tumid in the middle, and 
sloping to each side, with numerous concentric striae, and obso- 
lete longitudinal ones. 
O 
Tellina fasciata, List. Conch, cccciv. f. 249. — V. nebulosa, Pult. Dor- 
set, 34. — V. aurea, Mont. Test.' Brit. 129. Turt. Biv. Brit. 154. t. ix. 
f. 7, 8. — South of England and Ireland. 
Length about an inch ; breadth an inch and a quarter ; yellowish-white, 
with brownish zig-zag lines ; retral extremity slightly truncated obliquely ; 
shell at the margin of the cartilage tumid ; a broad lanceolate impression be- 
fore the beaks. 
536. V. (Eiiea. — Oval, taper, and elongated retrally, with 
crowded transverse striae and obscure longitudinal ones ; two 
of the teeth cloven. 
Turt. Biv. Brit. 152. t. x. f. 7 — Dublin Bay. 
“ Shell an inch long, and an inch and a half broad, white, covered with a 
shining bronzed skin, oval, convex, rounded at one end, regularly tapering, 
and much produced at the other, without forming any angle ; with regular 
close set transverse striae, and minute longitudinal lines ; beaks much point- 
ed, curved near the larger end with an elongated areola under them ; teeth 
strong, two of them cloven in one valve, and one in the other.” 
537. V. nitens. — “ Shell rhombic-oval, tumid in the middle, 
with crowded transverse stri® and obscure longitudinal ones, and 
the middle tooth cloven.” 
Turt. Biv. Brit. 157- t. x. f. 8.— Dublin Bay. 
“ Shell hardly three quarters of an inch long, and a little more in breadth, 
resembling the V. aurea in its outline ; but there is an evident angle at the 
posterior side, and the colour is transparent horny, with some few scattered 
longitudinal marks. From V. ( Venerupis ) virginea., it differs in having ob- 
scure longitudinal lines, in the transverse striae not becoming broader at the 
posterior end, and in having only one of the teeth cloven.” It is probable 
that this and the preceding are merely varieties of V. aurea. 
EXTINCT SPECIES. 
1. V. lineolata — Bather gibbous, ovato-subcordate ; four-fifths of the sur- 
face covered with obscure zig-zag striae ; posterior side smooth ; edge entire. 
F. castrensis^ Park. Org. Bern. iii. 187» — V. lin. Sower. Min. Conch, t. xx., 
upper figures — Green Sand. 
¥ f 
VOL. I. 
