49 
1. LINGULA.._ 
1. LU. Audebardii, t. 345. f. 1, 2. 
2. L. anatina (fig. 33). 
Fig. 33.—Lingula anatina. 
Ny aa 
" VV 
aa, anterior adductors. a’, posterior adductors. pp, external protract- 
ors. p’p’, central protractors. 77, anterior retractors. 1/7 7”, 
posterior retractors. c, capsule of pedicel. mn, visceral sheath. 
0, cesophagus. s, stomach. /, liver. 7, intestine. », vent. hh, 
auricles. ’, left ventricle. 6, branchial vessels. m’, mantle edge. 
m, inner lamina of the mantle margin retracted, showing the bases 
of sete. s, setee.— Hancock. 
