PLATE LXXXIX. 
I, 2, 3. Lucina Goodhallii. (GoodhalVs Lucina.) Sub-globose; anterior side concave, rounded posteriorly; lunette broad, flat; with a 
broad and a narrow groove on each side; surface smooth. 
4. Corbis Uniformis. (Uniform Corbis.) Oval; contracted at both ends; beaks central; surface smooth, with indistinct lines of growth. 
5. L. Despeeta. (Despised Lucina.) Orbicular; beaks large, obtuse; anterior side small; surface smooth, with remote lines of growth. 
6. 7. Donax Trunculus, (Little Stock Donax.) Transversely oblong, compressed; beaks small; anterior side straight above; surface 
smooth, with fine, longitudinal stria); internal margin crenulated. 
8. L. Sculpta. (Engraven Lucina.) Sub-trigonal, transversely elongated; anterior side short, straight; back straight; posterior side trun¬ 
cated ; with a ridge from beaks to basal margin; surface, with transverse, curved ridges posteriorly, abruptly angulated from ridge. 
9, 10. L. Crassa. (Thick Lucina.) Circular, convex; beaks minute; superior margin obtuse; lunette linear; surface, with concentric lamina) ; 
valves thick. 
II, 12. L. Orbicularis. (Orbicular Lucina.) Orbicular, elongated, convex; beaks small, central, remote ; sides equal; surface, with many, 
longitudinal, furcated strife, and a few, distant lines of growth. 
13. L. Pisum. (Pea Lucina.) Orbicular ; beaks obtuse; surface, with about fifteen, concentric ridges. 
14. L. Lirata. (Ridged Lucina.) Sub-orbicular; anterior side short; line from apex slightly bent; with longitudinal sulcus close to side 
line; surface, with many, concentric sulci, abruptly turned up at both ends. 
15. L. Portlandica. (Portland Lucina.) Orbicular, compressed; beaks central, small; sides equal; surface, with fine, concentrio stria). 
16. L. Mitis. (Gentle Lucina.) Circular, convex; lunette oval, deep; surface, with many, longitudinal striffi, crossed by regular lamina); 
cardinal teeth obscure; inside rough. 
17. L. Globosa. (Globular Lucina.) Globular; with long, flattened space posteriorly; beaks sub-acute; baso arcuated; surface smooth, 
with shallow lines of growth, waved near posterior margin. 
18. L. Rotundata. (Rounded Lucina.) Orbicular, convex; beaks small, central, obtuse, inflated; surface, with concentric stria). 
19. L. Radlila. (Rasp Lucina.) Circular, convex; lunette lanceolate, flat; surface, with many, concentric, sharp lamina); anterior side 
angular; shell thickish. 
20. L. Laminata. (Laminated Lucina.) Transversely ovate, compressed, oblique ; anterior side abort; beaks obtuse ; surface, with trans¬ 
verse, imbricated ridges. 
21. L. Du Noyerl. (Du Noyer's Lticina.) Orbicular, oblique, compressed; beaks protruding beyond hingo-linc; surface, with concentric, 
filiform stria). 
22. 23. L. Flexuosa. (Flcxuou8 Lucijia.) Transversely sub-globular; with sulcus or flexure from back to margin; surface smooth; shell 
thin. 
24. L. Undata. (Waved Lucina.) Orbicular, convex, flexuous; beaks prominent, inflated ; surface, with many, irregular, concentric stria). 
25. L. Divaricata. (Divergent Lucina.) Circular, gibbose; surface, with two sets of arcuated, convergent stria 1 , crossed by three or four, 
deep lines of growth; inside dull, granulated ; shell thick. 
26. Tellina Tenuis. (Thin Tellina.) Transversely ovate, compressed, very thin, fragile; beaks small, central; surface, with fine, con¬ 
centric stria. 
27. T. Branderi. (Brandeds Tellina.) Sub-orbicular, transverse, compressed; anterior margin, with small sinus ; beaks central, produced. 
28. C. Ovalis. (Oval Corbis.) Transversely oblong-oval; beaks large, prominent, incurved; surface smooth, with concentric lines of growth. 
29. T. Strlatula. (Partly-striated Tellina.) Transversely elongated; convex; anterior side short, pointed, with elevation on smooth surfaco ; 
with a few, longitudinal Btriio ; posterior side rounded. 
30. T. Insequalis. (Unequal Tellina.) Oval, convex, smooth ; anterior side obtuse, with fine stria) from beak; posterior side longer, rounded; 
beaks central. 
31. T. Donacina. (Donax Tellina.) Transversely oblong-ovate, thin, compressed; beaks small; one Bide sub-truncated; opposite side 
rounded; surface, with concentric striae. 
32. C. Lsevis. (Smooth Corbis.) Gibbose, transversely oval; posterior extremity, with transverse imbrications ; margin entire. 
33. L. Gigantea. (Gigantic Lucina.) Broad, smooth, sometimes sub-striated and internally punctated; hinge toothless; umbones large. 
Length, 3J in.; breadth, 3$ in. 
34. T^ Fabula. (False Tellina.) Transversely elongated, compressed, flexuous, thin; posterior side narrowod, truncated; beaks minute, 
central; left valve, with fine, diagonal strire; right valve plain, with remote, concentric strife. 
35. 36. T. Splendens. (Splendid Tellina.) Transversely ovate, convex; beaks central, Bmall; posterior sido pointed ; surfaco polished. 
37. T. Obliqua. (Oblique Tellina.) Sub-orbicular, oblique ; beaks central; with small angle near centre of valve of anterior Bide ; posterior 
side, with slight ridge; surfaco smooth. 
38. T. Filosa. (Threaded Tellina.) Sub-triangular; anterior side truncated, with ridge and sulcus from beak to base; posterior side rounded; 
surface, with many, acute, thread-like strife. 
39. Arcopagia Crassa. (Thick Arcopagia.) Transversely sub-ovate, oblique, twisted, inequivalve ; beaks short, obtuse, sub-central; surface, 
with strong, concentrio strife and irregular lines of growth; with sulcus from beaks to margin. 
40. T. Ovata. (Ovate Tellina.) Transversely ovate; anterior side, with sulcus; posterior side rounded; surface smooth, with well-marked 
lines of growth ; beaks small. 
41. T. Calearea. (Chalky Tellina.) Transversely ovate, compressed, thin; beaks small, central; surface, with many, concentrio stria); 
anterior side narrowed. 
42. T. Ambigua. (Ambiguous Tellina.) Transversely oblong-oval, convex; valves unequal; right valve thick, curved, more^convex; with 
one tooth ; sides rounded; beaks obtuse, Bmall; surface sulcated. 
43. T. Ampliata. (Enlarged Tellina.) Sub-orbicular; beaks central; surface, with many lines of growth; anterior side straight, with 
gentle ridge; posterior sido rounded. 
44. Psammobia Ferroensls. (Ferro Psammobia.) Transversely elongated, compressed; anterior side truncated, with ridge from beaks to 
base; surface, with strong, transverse strifB, angular on truncations. 
45. P. Gracilis. (Slender Psammobia.) Transversely elongated, cylindrical; anterior side truncated, with acute point below; surface, with 
many, transverse strife, angular on truncations. 
46. T. Subrotundus. (Half-rounded Tellina.) Orbicular, deep, thick ; surface, with many, concentric strife; sub-plicated on anterior side ; 
hinge with two teeth in one valve and one in the other, and one lateral tooth. 
47. P. Solida. (5oh'd Psammobia.) Transversely elongated, compressed, twisted; anterior side truncated, with ridge from beaks to margin ; 
surface smooth. 
48. P. Rlgida. (Rigid Psammobia.) Transversely elongated; anterior side attenuated; posterior side truncated; beaks obtuse; baso 
straight; surface, with ten to twelve, transverse ribs and sulci, and three divergent ribs from beaks to base. 
49. P. Tellinoides. (Tellina-like Psammobia.) Oblong-ovate; anterior side rounded, with a few, longitudinal stria); rest of shell smooth; 
beak3 central. 
50. P. Scopula. (Scapula's Psammobia.) Transversely oblong, reniform; beaks central; sides equally rounded; anterior side striated; rest 
of surface smooth. 
51. T. DonacialiS. (Donax-like Tellina.) Obliquely ovate, sub-trigonal, inequilateral, smooth, thin; anterior side short, rounded; inflexed, 
sub-angulated. 
52. P. Lsevigata. (Smooth Psammobia.) Transversely elongated; obliquely truncated anteriorly ; beaks small, sub-central; surface smooth. 
53. P. Florida. (Florid Psammobia.) Transversely oblong-oval; beaks central; sides equally rounded; surface, with concentric and longi¬ 
tudinal strife. 
54. P. Vespertina. (Bat's-wing Psammobia.) Transversely oblong-ovate; sides rounded; beaks small, central; surface, with fine, con¬ 
centric strifB. 
55. T. Solidula. (Thick Tellina.) Sub-orbicular, strong, thick, convex; anterior side arcuated, with longitudinal sulcus, angulated below; 
beaks central, straight; surface smooth, with a few, transverse wrinkles. 
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