2, TESTACEOUS MOLLUSCA. 
A. Nove Zevanniex. Lam.3.—Fav.t.79. EF. White clouded 
with flesh colour ; tube wrinkled annularly and suddenly increasing 
below the perforated disc to a size superior to that appendage which 
is small and without a border.— Smaller than the preceding.— New 
Zealand. 
A. AcciutTinans. Lam. 4. Tube twisted, sub-clavate, with 
other bodies attached to it; disc without a border, its surface 
roughened by numerous minute tubes. 3.—New Holland.' 
CLAVAGELLA. 
Sheath tubular, testaceous, attenuated, and open before; termina- 
ting posteriorly inan oval, subcompressed club, (often roughened 
by spiniform tubes) ; club showing on one side a valve of the shell, 
attached to its walls; the other valve unattached, in the sheath. 
C. ApertA. Sow. G.f. 1, 2, 3, 4.—Desh. in Lam. 6. p. 25.— 
Mag. de Z. 1842. t. 49, 51, § 50. f. 1, 2. Tube short, very 
clavate, very widely open above; aperture infundibuliform, its mar- 
gin wavy, foliaceous, scalloped ; the stages of growth evidenced by 
similar markings: valves triangular, pearly and widely gaping, 
the unattached one thick and transversely wrinkled. 
C. Exoneata. Brod. Z. T. 1. t. 35. f. 1 to4.—Magq de. Z. 
1842. t. 50. f. 3. Chamber elongated ovate; unattached valve 
elongated, subtriangular, convex, with strong concentric wrinkles, 
glossy within: umbone acute. — Pacific? 
C. Lara. Brod. Z. T. 1. t. 35. f. 8, 9,10. Chamber rounded 
ovate ; free valve rather broad, subtriangular, rather convex, concen- 
trically wrinkled ; glossy within in both valves, and the muscular 
impressions strong: umbone rather rounded.— Pacific.* 
C.Meuitensis. Brod. Z. T. 1. t. 35. f. 5 to 8—Mag. de 
Z. 1842. t. 50. f. 4. Shell rather rounded, wrinkled, rather glossy 
within : tube longitudinally wrinkled. . . Malta. 
C. Ausrratis. Sow. in Appendix to Stutchbury’s Catalogue, 
t. 1. f. 1... Tube simple and rounded; free valve oblong and 
rather convex. 
Cray. BaLAnorum, Schacchi.—Annals Nat. Hist.—Magq. de 
Zool. 1842. t.52. Valves subtriangular and wrinkled ; receptacle 
oval, rounded, produced above into a subquadrangular tube.— Pauw- 
silippe in masses of Balant. 
1 Perhaps Lister, t. 548. f. 3, may be added as aspecies. Mr. Gray 
has proposed its separation as A. Listeri. See too A. Sparsum, 
Sow. G.— Reeve. t. 17. f. 3, 4, 5. A. Dichotomy, Gray, Sc. 
2 Caillaud states that this is not distinct from Aperta. 
